/********************************************************************************
 *                                                                              *
 * This file is part of IfcOpenShell.                                           *
 *                                                                              *
 * IfcOpenShell is free software: you can redistribute it and/or modify         *
 * it under the terms of the Lesser GNU General Public License as published by  *
 * the Free Software Foundation, either version 3.0 of the License, or          *
 * (at your option) any later version.                                          *
 *                                                                              *
 * IfcOpenShell is distributed in the hope that it will be useful,              *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
 * Lesser GNU General Public License for more details.                          *
 *                                                                              *
 * You should have received a copy of the Lesser GNU General Public License     *
 * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
 *                                                                              *
 ********************************************************************************/

/********************************************************************************
 *                                                                              *
 * This file has been generated from IFC2X3_TC1.exp. Do not make modifications  *
 * but instead modify the python script that has been used to generate this.    *
 *                                                                              *
 ********************************************************************************/

#include "../ifcparse/Ifc2x3.h"
#include "../ifcparse/IfcSchema.h"
#include "../ifcparse/IfcException.h"
#include "../ifcparse/IfcFile.h"

#include <map>

const char* const Ifc2x3::Identifier = "IFC2X3";

using namespace IfcParse;

// External definitions
extern declaration* IFC2X3_types[980];


// const IfcParse::enumeration_type& Ifc2x3::IfcActionSourceTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[4]); }
const IfcParse::enumeration_type& Ifc2x3::IfcActionSourceTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[4]); }

/*
Ifc2x3::IfcActionSourceTypeEnum::IfcActionSourceTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcActionSourceTypeEnum::IfcActionSourceTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcActionSourceTypeEnum::IfcActionSourceTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcActionSourceTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcActionSourceTypeEnum::IfcActionSourceTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcActionSourceTypeEnum::Value Ifc2x3::IfcActionSourceTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcActionSourceTypeEnum::Value) Ifc2x3::IfcActionSourceTypeEnum::IfcActionSourceTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcActionSourceTypeEnum::operator Ifc2x3::IfcActionSourceTypeEnum::Value() const {
    return (Ifc2x3::IfcActionSourceTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcActionTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[5]); }
const IfcParse::enumeration_type& Ifc2x3::IfcActionTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[5]); }

/*
Ifc2x3::IfcActionTypeEnum::IfcActionTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcActionTypeEnum::IfcActionTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcActionTypeEnum::IfcActionTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcActionTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcActionTypeEnum::IfcActionTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcActionTypeEnum::Value Ifc2x3::IfcActionTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcActionTypeEnum::Value) Ifc2x3::IfcActionTypeEnum::IfcActionTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcActionTypeEnum::operator Ifc2x3::IfcActionTypeEnum::Value() const {
    return (Ifc2x3::IfcActionTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcActuatorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[10]); }
const IfcParse::enumeration_type& Ifc2x3::IfcActuatorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[10]); }

/*
Ifc2x3::IfcActuatorTypeEnum::IfcActuatorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcActuatorTypeEnum::IfcActuatorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcActuatorTypeEnum::IfcActuatorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcActuatorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcActuatorTypeEnum::IfcActuatorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcActuatorTypeEnum::Value Ifc2x3::IfcActuatorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcActuatorTypeEnum::Value) Ifc2x3::IfcActuatorTypeEnum::IfcActuatorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcActuatorTypeEnum::operator Ifc2x3::IfcActuatorTypeEnum::Value() const {
    return (Ifc2x3::IfcActuatorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAddressTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[12]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAddressTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[12]); }

/*
Ifc2x3::IfcAddressTypeEnum::IfcAddressTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAddressTypeEnum::IfcAddressTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAddressTypeEnum::IfcAddressTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAddressTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcAddressTypeEnum::IfcAddressTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAddressTypeEnum::Value Ifc2x3::IfcAddressTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAddressTypeEnum::Value) Ifc2x3::IfcAddressTypeEnum::IfcAddressTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAddressTypeEnum::operator Ifc2x3::IfcAddressTypeEnum::Value() const {
    return (Ifc2x3::IfcAddressTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAheadOrBehind::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[13]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAheadOrBehind::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[13]); }

/*
Ifc2x3::IfcAheadOrBehind::IfcAheadOrBehind(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAheadOrBehind::IfcAheadOrBehind(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAheadOrBehind::IfcAheadOrBehind(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAheadOrBehind::ToString(Value v) {
    return Ifc2x3::IfcAheadOrBehind::IfcAheadOrBehind::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAheadOrBehind::Value Ifc2x3::IfcAheadOrBehind::FromString(const std::string& s) {
    return (Ifc2x3::IfcAheadOrBehind::Value) Ifc2x3::IfcAheadOrBehind::IfcAheadOrBehind::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAheadOrBehind::operator Ifc2x3::IfcAheadOrBehind::Value() const {
    return (Ifc2x3::IfcAheadOrBehind::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAirTerminalBoxTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[15]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAirTerminalBoxTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[15]); }

/*
Ifc2x3::IfcAirTerminalBoxTypeEnum::IfcAirTerminalBoxTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAirTerminalBoxTypeEnum::IfcAirTerminalBoxTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAirTerminalBoxTypeEnum::IfcAirTerminalBoxTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAirTerminalBoxTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcAirTerminalBoxTypeEnum::IfcAirTerminalBoxTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAirTerminalBoxTypeEnum::Value Ifc2x3::IfcAirTerminalBoxTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAirTerminalBoxTypeEnum::Value) Ifc2x3::IfcAirTerminalBoxTypeEnum::IfcAirTerminalBoxTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAirTerminalBoxTypeEnum::operator Ifc2x3::IfcAirTerminalBoxTypeEnum::Value() const {
    return (Ifc2x3::IfcAirTerminalBoxTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAirTerminalTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[17]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAirTerminalTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[17]); }

/*
Ifc2x3::IfcAirTerminalTypeEnum::IfcAirTerminalTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAirTerminalTypeEnum::IfcAirTerminalTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAirTerminalTypeEnum::IfcAirTerminalTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAirTerminalTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcAirTerminalTypeEnum::IfcAirTerminalTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAirTerminalTypeEnum::Value Ifc2x3::IfcAirTerminalTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAirTerminalTypeEnum::Value) Ifc2x3::IfcAirTerminalTypeEnum::IfcAirTerminalTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAirTerminalTypeEnum::operator Ifc2x3::IfcAirTerminalTypeEnum::Value() const {
    return (Ifc2x3::IfcAirTerminalTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[19]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[19]); }

/*
Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::IfcAirToAirHeatRecoveryTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::IfcAirToAirHeatRecoveryTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::IfcAirToAirHeatRecoveryTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::IfcAirToAirHeatRecoveryTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Value Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Value) Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::IfcAirToAirHeatRecoveryTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::operator Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Value() const {
    return (Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAlarmTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[21]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAlarmTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[21]); }

/*
Ifc2x3::IfcAlarmTypeEnum::IfcAlarmTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAlarmTypeEnum::IfcAlarmTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAlarmTypeEnum::IfcAlarmTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAlarmTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcAlarmTypeEnum::IfcAlarmTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAlarmTypeEnum::Value Ifc2x3::IfcAlarmTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAlarmTypeEnum::Value) Ifc2x3::IfcAlarmTypeEnum::IfcAlarmTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAlarmTypeEnum::operator Ifc2x3::IfcAlarmTypeEnum::Value() const {
    return (Ifc2x3::IfcAlarmTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAnalysisModelTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[23]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAnalysisModelTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[23]); }

/*
Ifc2x3::IfcAnalysisModelTypeEnum::IfcAnalysisModelTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAnalysisModelTypeEnum::IfcAnalysisModelTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAnalysisModelTypeEnum::IfcAnalysisModelTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAnalysisModelTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcAnalysisModelTypeEnum::IfcAnalysisModelTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAnalysisModelTypeEnum::Value Ifc2x3::IfcAnalysisModelTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAnalysisModelTypeEnum::Value) Ifc2x3::IfcAnalysisModelTypeEnum::IfcAnalysisModelTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAnalysisModelTypeEnum::operator Ifc2x3::IfcAnalysisModelTypeEnum::Value() const {
    return (Ifc2x3::IfcAnalysisModelTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAnalysisTheoryTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[24]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAnalysisTheoryTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[24]); }

/*
Ifc2x3::IfcAnalysisTheoryTypeEnum::IfcAnalysisTheoryTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAnalysisTheoryTypeEnum::IfcAnalysisTheoryTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAnalysisTheoryTypeEnum::IfcAnalysisTheoryTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAnalysisTheoryTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcAnalysisTheoryTypeEnum::IfcAnalysisTheoryTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAnalysisTheoryTypeEnum::Value Ifc2x3::IfcAnalysisTheoryTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAnalysisTheoryTypeEnum::Value) Ifc2x3::IfcAnalysisTheoryTypeEnum::IfcAnalysisTheoryTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAnalysisTheoryTypeEnum::operator Ifc2x3::IfcAnalysisTheoryTypeEnum::Value() const {
    return (Ifc2x3::IfcAnalysisTheoryTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcArithmeticOperatorEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[48]); }
const IfcParse::enumeration_type& Ifc2x3::IfcArithmeticOperatorEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[48]); }

/*
Ifc2x3::IfcArithmeticOperatorEnum::IfcArithmeticOperatorEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcArithmeticOperatorEnum::IfcArithmeticOperatorEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcArithmeticOperatorEnum::IfcArithmeticOperatorEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcArithmeticOperatorEnum::ToString(Value v) {
    return Ifc2x3::IfcArithmeticOperatorEnum::IfcArithmeticOperatorEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcArithmeticOperatorEnum::Value Ifc2x3::IfcArithmeticOperatorEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcArithmeticOperatorEnum::Value) Ifc2x3::IfcArithmeticOperatorEnum::IfcArithmeticOperatorEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcArithmeticOperatorEnum::operator Ifc2x3::IfcArithmeticOperatorEnum::Value() const {
    return (Ifc2x3::IfcArithmeticOperatorEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcAssemblyPlaceEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[49]); }
const IfcParse::enumeration_type& Ifc2x3::IfcAssemblyPlaceEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[49]); }

/*
Ifc2x3::IfcAssemblyPlaceEnum::IfcAssemblyPlaceEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcAssemblyPlaceEnum::IfcAssemblyPlaceEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcAssemblyPlaceEnum::IfcAssemblyPlaceEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcAssemblyPlaceEnum::ToString(Value v) {
    return Ifc2x3::IfcAssemblyPlaceEnum::IfcAssemblyPlaceEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcAssemblyPlaceEnum::Value Ifc2x3::IfcAssemblyPlaceEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcAssemblyPlaceEnum::Value) Ifc2x3::IfcAssemblyPlaceEnum::IfcAssemblyPlaceEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcAssemblyPlaceEnum::operator Ifc2x3::IfcAssemblyPlaceEnum::Value() const {
    return (Ifc2x3::IfcAssemblyPlaceEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcBSplineCurveForm::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[81]); }
const IfcParse::enumeration_type& Ifc2x3::IfcBSplineCurveForm::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[81]); }

/*
Ifc2x3::IfcBSplineCurveForm::IfcBSplineCurveForm(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcBSplineCurveForm::IfcBSplineCurveForm(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcBSplineCurveForm::IfcBSplineCurveForm(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcBSplineCurveForm::ToString(Value v) {
    return Ifc2x3::IfcBSplineCurveForm::IfcBSplineCurveForm::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcBSplineCurveForm::Value Ifc2x3::IfcBSplineCurveForm::FromString(const std::string& s) {
    return (Ifc2x3::IfcBSplineCurveForm::Value) Ifc2x3::IfcBSplineCurveForm::IfcBSplineCurveForm::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcBSplineCurveForm::operator Ifc2x3::IfcBSplineCurveForm::Value() const {
    return (Ifc2x3::IfcBSplineCurveForm::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcBeamTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[58]); }
const IfcParse::enumeration_type& Ifc2x3::IfcBeamTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[58]); }

/*
Ifc2x3::IfcBeamTypeEnum::IfcBeamTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcBeamTypeEnum::IfcBeamTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcBeamTypeEnum::IfcBeamTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcBeamTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcBeamTypeEnum::IfcBeamTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcBeamTypeEnum::Value Ifc2x3::IfcBeamTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcBeamTypeEnum::Value) Ifc2x3::IfcBeamTypeEnum::IfcBeamTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcBeamTypeEnum::operator Ifc2x3::IfcBeamTypeEnum::Value() const {
    return (Ifc2x3::IfcBeamTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcBenchmarkEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[59]); }
const IfcParse::enumeration_type& Ifc2x3::IfcBenchmarkEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[59]); }

/*
Ifc2x3::IfcBenchmarkEnum::IfcBenchmarkEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcBenchmarkEnum::IfcBenchmarkEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcBenchmarkEnum::IfcBenchmarkEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcBenchmarkEnum::ToString(Value v) {
    return Ifc2x3::IfcBenchmarkEnum::IfcBenchmarkEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcBenchmarkEnum::Value Ifc2x3::IfcBenchmarkEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcBenchmarkEnum::Value) Ifc2x3::IfcBenchmarkEnum::IfcBenchmarkEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcBenchmarkEnum::operator Ifc2x3::IfcBenchmarkEnum::Value() const {
    return (Ifc2x3::IfcBenchmarkEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcBoilerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[64]); }
const IfcParse::enumeration_type& Ifc2x3::IfcBoilerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[64]); }

/*
Ifc2x3::IfcBoilerTypeEnum::IfcBoilerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcBoilerTypeEnum::IfcBoilerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcBoilerTypeEnum::IfcBoilerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcBoilerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcBoilerTypeEnum::IfcBoilerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcBoilerTypeEnum::Value Ifc2x3::IfcBoilerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcBoilerTypeEnum::Value) Ifc2x3::IfcBoilerTypeEnum::IfcBoilerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcBoilerTypeEnum::operator Ifc2x3::IfcBoilerTypeEnum::Value() const {
    return (Ifc2x3::IfcBoilerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcBooleanOperator::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[68]); }
const IfcParse::enumeration_type& Ifc2x3::IfcBooleanOperator::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[68]); }

/*
Ifc2x3::IfcBooleanOperator::IfcBooleanOperator(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcBooleanOperator::IfcBooleanOperator(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcBooleanOperator::IfcBooleanOperator(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcBooleanOperator::ToString(Value v) {
    return Ifc2x3::IfcBooleanOperator::IfcBooleanOperator::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcBooleanOperator::Value Ifc2x3::IfcBooleanOperator::FromString(const std::string& s) {
    return (Ifc2x3::IfcBooleanOperator::Value) Ifc2x3::IfcBooleanOperator::IfcBooleanOperator::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcBooleanOperator::operator Ifc2x3::IfcBooleanOperator::Value() const {
    return (Ifc2x3::IfcBooleanOperator::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcBuildingElementProxyTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[88]); }
const IfcParse::enumeration_type& Ifc2x3::IfcBuildingElementProxyTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[88]); }

/*
Ifc2x3::IfcBuildingElementProxyTypeEnum::IfcBuildingElementProxyTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcBuildingElementProxyTypeEnum::IfcBuildingElementProxyTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcBuildingElementProxyTypeEnum::IfcBuildingElementProxyTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcBuildingElementProxyTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcBuildingElementProxyTypeEnum::IfcBuildingElementProxyTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcBuildingElementProxyTypeEnum::Value Ifc2x3::IfcBuildingElementProxyTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcBuildingElementProxyTypeEnum::Value) Ifc2x3::IfcBuildingElementProxyTypeEnum::IfcBuildingElementProxyTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcBuildingElementProxyTypeEnum::operator Ifc2x3::IfcBuildingElementProxyTypeEnum::Value() const {
    return (Ifc2x3::IfcBuildingElementProxyTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCableCarrierFittingTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[92]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCableCarrierFittingTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[92]); }

/*
Ifc2x3::IfcCableCarrierFittingTypeEnum::IfcCableCarrierFittingTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCableCarrierFittingTypeEnum::IfcCableCarrierFittingTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCableCarrierFittingTypeEnum::IfcCableCarrierFittingTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCableCarrierFittingTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCableCarrierFittingTypeEnum::IfcCableCarrierFittingTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCableCarrierFittingTypeEnum::Value Ifc2x3::IfcCableCarrierFittingTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCableCarrierFittingTypeEnum::Value) Ifc2x3::IfcCableCarrierFittingTypeEnum::IfcCableCarrierFittingTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCableCarrierFittingTypeEnum::operator Ifc2x3::IfcCableCarrierFittingTypeEnum::Value() const {
    return (Ifc2x3::IfcCableCarrierFittingTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCableCarrierSegmentTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[94]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCableCarrierSegmentTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[94]); }

/*
Ifc2x3::IfcCableCarrierSegmentTypeEnum::IfcCableCarrierSegmentTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCableCarrierSegmentTypeEnum::IfcCableCarrierSegmentTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCableCarrierSegmentTypeEnum::IfcCableCarrierSegmentTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCableCarrierSegmentTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCableCarrierSegmentTypeEnum::IfcCableCarrierSegmentTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCableCarrierSegmentTypeEnum::Value Ifc2x3::IfcCableCarrierSegmentTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCableCarrierSegmentTypeEnum::Value) Ifc2x3::IfcCableCarrierSegmentTypeEnum::IfcCableCarrierSegmentTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCableCarrierSegmentTypeEnum::operator Ifc2x3::IfcCableCarrierSegmentTypeEnum::Value() const {
    return (Ifc2x3::IfcCableCarrierSegmentTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCableSegmentTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[96]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCableSegmentTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[96]); }

/*
Ifc2x3::IfcCableSegmentTypeEnum::IfcCableSegmentTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCableSegmentTypeEnum::IfcCableSegmentTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCableSegmentTypeEnum::IfcCableSegmentTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCableSegmentTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCableSegmentTypeEnum::IfcCableSegmentTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCableSegmentTypeEnum::Value Ifc2x3::IfcCableSegmentTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCableSegmentTypeEnum::Value) Ifc2x3::IfcCableSegmentTypeEnum::IfcCableSegmentTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCableSegmentTypeEnum::operator Ifc2x3::IfcCableSegmentTypeEnum::Value() const {
    return (Ifc2x3::IfcCableSegmentTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcChangeActionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[106]); }
const IfcParse::enumeration_type& Ifc2x3::IfcChangeActionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[106]); }

/*
Ifc2x3::IfcChangeActionEnum::IfcChangeActionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcChangeActionEnum::IfcChangeActionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcChangeActionEnum::IfcChangeActionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcChangeActionEnum::ToString(Value v) {
    return Ifc2x3::IfcChangeActionEnum::IfcChangeActionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcChangeActionEnum::Value Ifc2x3::IfcChangeActionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcChangeActionEnum::Value) Ifc2x3::IfcChangeActionEnum::IfcChangeActionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcChangeActionEnum::operator Ifc2x3::IfcChangeActionEnum::Value() const {
    return (Ifc2x3::IfcChangeActionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcChillerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[109]); }
const IfcParse::enumeration_type& Ifc2x3::IfcChillerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[109]); }

/*
Ifc2x3::IfcChillerTypeEnum::IfcChillerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcChillerTypeEnum::IfcChillerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcChillerTypeEnum::IfcChillerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcChillerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcChillerTypeEnum::IfcChillerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcChillerTypeEnum::Value Ifc2x3::IfcChillerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcChillerTypeEnum::Value) Ifc2x3::IfcChillerTypeEnum::IfcChillerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcChillerTypeEnum::operator Ifc2x3::IfcChillerTypeEnum::Value() const {
    return (Ifc2x3::IfcChillerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCoilTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[122]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCoilTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[122]); }

/*
Ifc2x3::IfcCoilTypeEnum::IfcCoilTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCoilTypeEnum::IfcCoilTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCoilTypeEnum::IfcCoilTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCoilTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCoilTypeEnum::IfcCoilTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCoilTypeEnum::Value Ifc2x3::IfcCoilTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCoilTypeEnum::Value) Ifc2x3::IfcCoilTypeEnum::IfcCoilTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCoilTypeEnum::operator Ifc2x3::IfcCoilTypeEnum::Value() const {
    return (Ifc2x3::IfcCoilTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcColumnTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[129]); }
const IfcParse::enumeration_type& Ifc2x3::IfcColumnTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[129]); }

/*
Ifc2x3::IfcColumnTypeEnum::IfcColumnTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcColumnTypeEnum::IfcColumnTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcColumnTypeEnum::IfcColumnTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcColumnTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcColumnTypeEnum::IfcColumnTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcColumnTypeEnum::Value Ifc2x3::IfcColumnTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcColumnTypeEnum::Value) Ifc2x3::IfcColumnTypeEnum::IfcColumnTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcColumnTypeEnum::operator Ifc2x3::IfcColumnTypeEnum::Value() const {
    return (Ifc2x3::IfcColumnTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCompressorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[137]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCompressorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[137]); }

/*
Ifc2x3::IfcCompressorTypeEnum::IfcCompressorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCompressorTypeEnum::IfcCompressorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCompressorTypeEnum::IfcCompressorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCompressorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCompressorTypeEnum::IfcCompressorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCompressorTypeEnum::Value Ifc2x3::IfcCompressorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCompressorTypeEnum::Value) Ifc2x3::IfcCompressorTypeEnum::IfcCompressorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCompressorTypeEnum::operator Ifc2x3::IfcCompressorTypeEnum::Value() const {
    return (Ifc2x3::IfcCompressorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCondenserTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[139]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCondenserTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[139]); }

/*
Ifc2x3::IfcCondenserTypeEnum::IfcCondenserTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCondenserTypeEnum::IfcCondenserTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCondenserTypeEnum::IfcCondenserTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCondenserTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCondenserTypeEnum::IfcCondenserTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCondenserTypeEnum::Value Ifc2x3::IfcCondenserTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCondenserTypeEnum::Value) Ifc2x3::IfcCondenserTypeEnum::IfcCondenserTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCondenserTypeEnum::operator Ifc2x3::IfcCondenserTypeEnum::Value() const {
    return (Ifc2x3::IfcCondenserTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcConnectionTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[151]); }
const IfcParse::enumeration_type& Ifc2x3::IfcConnectionTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[151]); }

/*
Ifc2x3::IfcConnectionTypeEnum::IfcConnectionTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcConnectionTypeEnum::IfcConnectionTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcConnectionTypeEnum::IfcConnectionTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcConnectionTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcConnectionTypeEnum::IfcConnectionTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcConnectionTypeEnum::Value Ifc2x3::IfcConnectionTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcConnectionTypeEnum::Value) Ifc2x3::IfcConnectionTypeEnum::IfcConnectionTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcConnectionTypeEnum::operator Ifc2x3::IfcConnectionTypeEnum::Value() const {
    return (Ifc2x3::IfcConnectionTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcConstraintEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[155]); }
const IfcParse::enumeration_type& Ifc2x3::IfcConstraintEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[155]); }

/*
Ifc2x3::IfcConstraintEnum::IfcConstraintEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcConstraintEnum::IfcConstraintEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcConstraintEnum::IfcConstraintEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcConstraintEnum::ToString(Value v) {
    return Ifc2x3::IfcConstraintEnum::IfcConstraintEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcConstraintEnum::Value Ifc2x3::IfcConstraintEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcConstraintEnum::Value) Ifc2x3::IfcConstraintEnum::IfcConstraintEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcConstraintEnum::operator Ifc2x3::IfcConstraintEnum::Value() const {
    return (Ifc2x3::IfcConstraintEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcControllerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[165]); }
const IfcParse::enumeration_type& Ifc2x3::IfcControllerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[165]); }

/*
Ifc2x3::IfcControllerTypeEnum::IfcControllerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcControllerTypeEnum::IfcControllerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcControllerTypeEnum::IfcControllerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcControllerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcControllerTypeEnum::IfcControllerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcControllerTypeEnum::Value Ifc2x3::IfcControllerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcControllerTypeEnum::Value) Ifc2x3::IfcControllerTypeEnum::IfcControllerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcControllerTypeEnum::operator Ifc2x3::IfcControllerTypeEnum::Value() const {
    return (Ifc2x3::IfcControllerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCooledBeamTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[168]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCooledBeamTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[168]); }

/*
Ifc2x3::IfcCooledBeamTypeEnum::IfcCooledBeamTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCooledBeamTypeEnum::IfcCooledBeamTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCooledBeamTypeEnum::IfcCooledBeamTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCooledBeamTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCooledBeamTypeEnum::IfcCooledBeamTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCooledBeamTypeEnum::Value Ifc2x3::IfcCooledBeamTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCooledBeamTypeEnum::Value) Ifc2x3::IfcCooledBeamTypeEnum::IfcCooledBeamTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCooledBeamTypeEnum::operator Ifc2x3::IfcCooledBeamTypeEnum::Value() const {
    return (Ifc2x3::IfcCooledBeamTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCoolingTowerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[170]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCoolingTowerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[170]); }

/*
Ifc2x3::IfcCoolingTowerTypeEnum::IfcCoolingTowerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCoolingTowerTypeEnum::IfcCoolingTowerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCoolingTowerTypeEnum::IfcCoolingTowerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCoolingTowerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCoolingTowerTypeEnum::IfcCoolingTowerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCoolingTowerTypeEnum::Value Ifc2x3::IfcCoolingTowerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCoolingTowerTypeEnum::Value) Ifc2x3::IfcCoolingTowerTypeEnum::IfcCoolingTowerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCoolingTowerTypeEnum::operator Ifc2x3::IfcCoolingTowerTypeEnum::Value() const {
    return (Ifc2x3::IfcCoolingTowerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCostScheduleTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[174]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCostScheduleTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[174]); }

/*
Ifc2x3::IfcCostScheduleTypeEnum::IfcCostScheduleTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCostScheduleTypeEnum::IfcCostScheduleTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCostScheduleTypeEnum::IfcCostScheduleTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCostScheduleTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCostScheduleTypeEnum::IfcCostScheduleTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCostScheduleTypeEnum::Value Ifc2x3::IfcCostScheduleTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCostScheduleTypeEnum::Value) Ifc2x3::IfcCostScheduleTypeEnum::IfcCostScheduleTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCostScheduleTypeEnum::operator Ifc2x3::IfcCostScheduleTypeEnum::Value() const {
    return (Ifc2x3::IfcCostScheduleTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCoveringTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[179]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCoveringTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[179]); }

/*
Ifc2x3::IfcCoveringTypeEnum::IfcCoveringTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCoveringTypeEnum::IfcCoveringTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCoveringTypeEnum::IfcCoveringTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCoveringTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCoveringTypeEnum::IfcCoveringTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCoveringTypeEnum::Value Ifc2x3::IfcCoveringTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCoveringTypeEnum::Value) Ifc2x3::IfcCoveringTypeEnum::IfcCoveringTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCoveringTypeEnum::operator Ifc2x3::IfcCoveringTypeEnum::Value() const {
    return (Ifc2x3::IfcCoveringTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCurrencyEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[187]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCurrencyEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[187]); }

/*
Ifc2x3::IfcCurrencyEnum::IfcCurrencyEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCurrencyEnum::IfcCurrencyEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCurrencyEnum::IfcCurrencyEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCurrencyEnum::ToString(Value v) {
    return Ifc2x3::IfcCurrencyEnum::IfcCurrencyEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCurrencyEnum::Value Ifc2x3::IfcCurrencyEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCurrencyEnum::Value) Ifc2x3::IfcCurrencyEnum::IfcCurrencyEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCurrencyEnum::operator Ifc2x3::IfcCurrencyEnum::Value() const {
    return (Ifc2x3::IfcCurrencyEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcCurtainWallTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[191]); }
const IfcParse::enumeration_type& Ifc2x3::IfcCurtainWallTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[191]); }

/*
Ifc2x3::IfcCurtainWallTypeEnum::IfcCurtainWallTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcCurtainWallTypeEnum::IfcCurtainWallTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcCurtainWallTypeEnum::IfcCurtainWallTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcCurtainWallTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcCurtainWallTypeEnum::IfcCurtainWallTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcCurtainWallTypeEnum::Value Ifc2x3::IfcCurtainWallTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcCurtainWallTypeEnum::Value) Ifc2x3::IfcCurtainWallTypeEnum::IfcCurtainWallTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcCurtainWallTypeEnum::operator Ifc2x3::IfcCurtainWallTypeEnum::Value() const {
    return (Ifc2x3::IfcCurtainWallTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDamperTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[203]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDamperTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[203]); }

/*
Ifc2x3::IfcDamperTypeEnum::IfcDamperTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDamperTypeEnum::IfcDamperTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDamperTypeEnum::IfcDamperTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDamperTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcDamperTypeEnum::IfcDamperTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDamperTypeEnum::Value Ifc2x3::IfcDamperTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDamperTypeEnum::Value) Ifc2x3::IfcDamperTypeEnum::IfcDamperTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDamperTypeEnum::operator Ifc2x3::IfcDamperTypeEnum::Value() const {
    return (Ifc2x3::IfcDamperTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDataOriginEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[204]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDataOriginEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[204]); }

/*
Ifc2x3::IfcDataOriginEnum::IfcDataOriginEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDataOriginEnum::IfcDataOriginEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDataOriginEnum::IfcDataOriginEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDataOriginEnum::ToString(Value v) {
    return Ifc2x3::IfcDataOriginEnum::IfcDataOriginEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDataOriginEnum::Value Ifc2x3::IfcDataOriginEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDataOriginEnum::Value) Ifc2x3::IfcDataOriginEnum::IfcDataOriginEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDataOriginEnum::operator Ifc2x3::IfcDataOriginEnum::Value() const {
    return (Ifc2x3::IfcDataOriginEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDerivedUnitEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[215]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDerivedUnitEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[215]); }

/*
Ifc2x3::IfcDerivedUnitEnum::IfcDerivedUnitEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDerivedUnitEnum::IfcDerivedUnitEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDerivedUnitEnum::IfcDerivedUnitEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDerivedUnitEnum::ToString(Value v) {
    return Ifc2x3::IfcDerivedUnitEnum::IfcDerivedUnitEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDerivedUnitEnum::Value Ifc2x3::IfcDerivedUnitEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDerivedUnitEnum::Value) Ifc2x3::IfcDerivedUnitEnum::IfcDerivedUnitEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDerivedUnitEnum::operator Ifc2x3::IfcDerivedUnitEnum::Value() const {
    return (Ifc2x3::IfcDerivedUnitEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDimensionExtentUsage::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[224]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDimensionExtentUsage::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[224]); }

/*
Ifc2x3::IfcDimensionExtentUsage::IfcDimensionExtentUsage(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDimensionExtentUsage::IfcDimensionExtentUsage(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDimensionExtentUsage::IfcDimensionExtentUsage(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDimensionExtentUsage::ToString(Value v) {
    return Ifc2x3::IfcDimensionExtentUsage::IfcDimensionExtentUsage::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDimensionExtentUsage::Value Ifc2x3::IfcDimensionExtentUsage::FromString(const std::string& s) {
    return (Ifc2x3::IfcDimensionExtentUsage::Value) Ifc2x3::IfcDimensionExtentUsage::IfcDimensionExtentUsage::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDimensionExtentUsage::operator Ifc2x3::IfcDimensionExtentUsage::Value() const {
    return (Ifc2x3::IfcDimensionExtentUsage::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDirectionSenseEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[227]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDirectionSenseEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[227]); }

/*
Ifc2x3::IfcDirectionSenseEnum::IfcDirectionSenseEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDirectionSenseEnum::IfcDirectionSenseEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDirectionSenseEnum::IfcDirectionSenseEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDirectionSenseEnum::ToString(Value v) {
    return Ifc2x3::IfcDirectionSenseEnum::IfcDirectionSenseEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDirectionSenseEnum::Value Ifc2x3::IfcDirectionSenseEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDirectionSenseEnum::Value) Ifc2x3::IfcDirectionSenseEnum::IfcDirectionSenseEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDirectionSenseEnum::operator Ifc2x3::IfcDirectionSenseEnum::Value() const {
    return (Ifc2x3::IfcDirectionSenseEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDistributionChamberElementTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[232]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDistributionChamberElementTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[232]); }

/*
Ifc2x3::IfcDistributionChamberElementTypeEnum::IfcDistributionChamberElementTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDistributionChamberElementTypeEnum::IfcDistributionChamberElementTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDistributionChamberElementTypeEnum::IfcDistributionChamberElementTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDistributionChamberElementTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcDistributionChamberElementTypeEnum::IfcDistributionChamberElementTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDistributionChamberElementTypeEnum::Value Ifc2x3::IfcDistributionChamberElementTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDistributionChamberElementTypeEnum::Value) Ifc2x3::IfcDistributionChamberElementTypeEnum::IfcDistributionChamberElementTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDistributionChamberElementTypeEnum::operator Ifc2x3::IfcDistributionChamberElementTypeEnum::Value() const {
    return (Ifc2x3::IfcDistributionChamberElementTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDocumentConfidentialityEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[240]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDocumentConfidentialityEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[240]); }

/*
Ifc2x3::IfcDocumentConfidentialityEnum::IfcDocumentConfidentialityEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDocumentConfidentialityEnum::IfcDocumentConfidentialityEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDocumentConfidentialityEnum::IfcDocumentConfidentialityEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDocumentConfidentialityEnum::ToString(Value v) {
    return Ifc2x3::IfcDocumentConfidentialityEnum::IfcDocumentConfidentialityEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDocumentConfidentialityEnum::Value Ifc2x3::IfcDocumentConfidentialityEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDocumentConfidentialityEnum::Value) Ifc2x3::IfcDocumentConfidentialityEnum::IfcDocumentConfidentialityEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDocumentConfidentialityEnum::operator Ifc2x3::IfcDocumentConfidentialityEnum::Value() const {
    return (Ifc2x3::IfcDocumentConfidentialityEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDocumentStatusEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[246]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDocumentStatusEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[246]); }

/*
Ifc2x3::IfcDocumentStatusEnum::IfcDocumentStatusEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDocumentStatusEnum::IfcDocumentStatusEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDocumentStatusEnum::IfcDocumentStatusEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDocumentStatusEnum::ToString(Value v) {
    return Ifc2x3::IfcDocumentStatusEnum::IfcDocumentStatusEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDocumentStatusEnum::Value Ifc2x3::IfcDocumentStatusEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDocumentStatusEnum::Value) Ifc2x3::IfcDocumentStatusEnum::IfcDocumentStatusEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDocumentStatusEnum::operator Ifc2x3::IfcDocumentStatusEnum::Value() const {
    return (Ifc2x3::IfcDocumentStatusEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDoorPanelOperationEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[249]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDoorPanelOperationEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[249]); }

/*
Ifc2x3::IfcDoorPanelOperationEnum::IfcDoorPanelOperationEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDoorPanelOperationEnum::IfcDoorPanelOperationEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDoorPanelOperationEnum::IfcDoorPanelOperationEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDoorPanelOperationEnum::ToString(Value v) {
    return Ifc2x3::IfcDoorPanelOperationEnum::IfcDoorPanelOperationEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDoorPanelOperationEnum::Value Ifc2x3::IfcDoorPanelOperationEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDoorPanelOperationEnum::Value) Ifc2x3::IfcDoorPanelOperationEnum::IfcDoorPanelOperationEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDoorPanelOperationEnum::operator Ifc2x3::IfcDoorPanelOperationEnum::Value() const {
    return (Ifc2x3::IfcDoorPanelOperationEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDoorPanelPositionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[250]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDoorPanelPositionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[250]); }

/*
Ifc2x3::IfcDoorPanelPositionEnum::IfcDoorPanelPositionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDoorPanelPositionEnum::IfcDoorPanelPositionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDoorPanelPositionEnum::IfcDoorPanelPositionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDoorPanelPositionEnum::ToString(Value v) {
    return Ifc2x3::IfcDoorPanelPositionEnum::IfcDoorPanelPositionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDoorPanelPositionEnum::Value Ifc2x3::IfcDoorPanelPositionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDoorPanelPositionEnum::Value) Ifc2x3::IfcDoorPanelPositionEnum::IfcDoorPanelPositionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDoorPanelPositionEnum::operator Ifc2x3::IfcDoorPanelPositionEnum::Value() const {
    return (Ifc2x3::IfcDoorPanelPositionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDoorStyleConstructionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[253]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDoorStyleConstructionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[253]); }

/*
Ifc2x3::IfcDoorStyleConstructionEnum::IfcDoorStyleConstructionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDoorStyleConstructionEnum::IfcDoorStyleConstructionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDoorStyleConstructionEnum::IfcDoorStyleConstructionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDoorStyleConstructionEnum::ToString(Value v) {
    return Ifc2x3::IfcDoorStyleConstructionEnum::IfcDoorStyleConstructionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDoorStyleConstructionEnum::Value Ifc2x3::IfcDoorStyleConstructionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDoorStyleConstructionEnum::Value) Ifc2x3::IfcDoorStyleConstructionEnum::IfcDoorStyleConstructionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDoorStyleConstructionEnum::operator Ifc2x3::IfcDoorStyleConstructionEnum::Value() const {
    return (Ifc2x3::IfcDoorStyleConstructionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDoorStyleOperationEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[254]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDoorStyleOperationEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[254]); }

/*
Ifc2x3::IfcDoorStyleOperationEnum::IfcDoorStyleOperationEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDoorStyleOperationEnum::IfcDoorStyleOperationEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDoorStyleOperationEnum::IfcDoorStyleOperationEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDoorStyleOperationEnum::ToString(Value v) {
    return Ifc2x3::IfcDoorStyleOperationEnum::IfcDoorStyleOperationEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDoorStyleOperationEnum::Value Ifc2x3::IfcDoorStyleOperationEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDoorStyleOperationEnum::Value) Ifc2x3::IfcDoorStyleOperationEnum::IfcDoorStyleOperationEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDoorStyleOperationEnum::operator Ifc2x3::IfcDoorStyleOperationEnum::Value() const {
    return (Ifc2x3::IfcDoorStyleOperationEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDuctFittingTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[263]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDuctFittingTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[263]); }

/*
Ifc2x3::IfcDuctFittingTypeEnum::IfcDuctFittingTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDuctFittingTypeEnum::IfcDuctFittingTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDuctFittingTypeEnum::IfcDuctFittingTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDuctFittingTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcDuctFittingTypeEnum::IfcDuctFittingTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDuctFittingTypeEnum::Value Ifc2x3::IfcDuctFittingTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDuctFittingTypeEnum::Value) Ifc2x3::IfcDuctFittingTypeEnum::IfcDuctFittingTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDuctFittingTypeEnum::operator Ifc2x3::IfcDuctFittingTypeEnum::Value() const {
    return (Ifc2x3::IfcDuctFittingTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDuctSegmentTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[265]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDuctSegmentTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[265]); }

/*
Ifc2x3::IfcDuctSegmentTypeEnum::IfcDuctSegmentTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDuctSegmentTypeEnum::IfcDuctSegmentTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDuctSegmentTypeEnum::IfcDuctSegmentTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDuctSegmentTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcDuctSegmentTypeEnum::IfcDuctSegmentTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDuctSegmentTypeEnum::Value Ifc2x3::IfcDuctSegmentTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDuctSegmentTypeEnum::Value) Ifc2x3::IfcDuctSegmentTypeEnum::IfcDuctSegmentTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDuctSegmentTypeEnum::operator Ifc2x3::IfcDuctSegmentTypeEnum::Value() const {
    return (Ifc2x3::IfcDuctSegmentTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcDuctSilencerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[267]); }
const IfcParse::enumeration_type& Ifc2x3::IfcDuctSilencerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[267]); }

/*
Ifc2x3::IfcDuctSilencerTypeEnum::IfcDuctSilencerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcDuctSilencerTypeEnum::IfcDuctSilencerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcDuctSilencerTypeEnum::IfcDuctSilencerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcDuctSilencerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcDuctSilencerTypeEnum::IfcDuctSilencerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcDuctSilencerTypeEnum::Value Ifc2x3::IfcDuctSilencerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcDuctSilencerTypeEnum::Value) Ifc2x3::IfcDuctSilencerTypeEnum::IfcDuctSilencerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcDuctSilencerTypeEnum::operator Ifc2x3::IfcDuctSilencerTypeEnum::Value() const {
    return (Ifc2x3::IfcDuctSilencerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricApplianceTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[277]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricApplianceTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[277]); }

/*
Ifc2x3::IfcElectricApplianceTypeEnum::IfcElectricApplianceTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricApplianceTypeEnum::IfcElectricApplianceTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricApplianceTypeEnum::IfcElectricApplianceTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricApplianceTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricApplianceTypeEnum::IfcElectricApplianceTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricApplianceTypeEnum::Value Ifc2x3::IfcElectricApplianceTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricApplianceTypeEnum::Value) Ifc2x3::IfcElectricApplianceTypeEnum::IfcElectricApplianceTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricApplianceTypeEnum::operator Ifc2x3::IfcElectricApplianceTypeEnum::Value() const {
    return (Ifc2x3::IfcElectricApplianceTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricCurrentEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[281]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricCurrentEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[281]); }

/*
Ifc2x3::IfcElectricCurrentEnum::IfcElectricCurrentEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricCurrentEnum::IfcElectricCurrentEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricCurrentEnum::IfcElectricCurrentEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricCurrentEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricCurrentEnum::IfcElectricCurrentEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricCurrentEnum::Value Ifc2x3::IfcElectricCurrentEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricCurrentEnum::Value) Ifc2x3::IfcElectricCurrentEnum::IfcElectricCurrentEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricCurrentEnum::operator Ifc2x3::IfcElectricCurrentEnum::Value() const {
    return (Ifc2x3::IfcElectricCurrentEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricDistributionPointFunctionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[284]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricDistributionPointFunctionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[284]); }

/*
Ifc2x3::IfcElectricDistributionPointFunctionEnum::IfcElectricDistributionPointFunctionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricDistributionPointFunctionEnum::IfcElectricDistributionPointFunctionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricDistributionPointFunctionEnum::IfcElectricDistributionPointFunctionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricDistributionPointFunctionEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricDistributionPointFunctionEnum::IfcElectricDistributionPointFunctionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricDistributionPointFunctionEnum::Value Ifc2x3::IfcElectricDistributionPointFunctionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricDistributionPointFunctionEnum::Value) Ifc2x3::IfcElectricDistributionPointFunctionEnum::IfcElectricDistributionPointFunctionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricDistributionPointFunctionEnum::operator Ifc2x3::IfcElectricDistributionPointFunctionEnum::Value() const {
    return (Ifc2x3::IfcElectricDistributionPointFunctionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[286]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[286]); }

/*
Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::IfcElectricFlowStorageDeviceTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::IfcElectricFlowStorageDeviceTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::IfcElectricFlowStorageDeviceTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::IfcElectricFlowStorageDeviceTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Value Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Value) Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::IfcElectricFlowStorageDeviceTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::operator Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Value() const {
    return (Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricGeneratorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[288]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricGeneratorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[288]); }

/*
Ifc2x3::IfcElectricGeneratorTypeEnum::IfcElectricGeneratorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricGeneratorTypeEnum::IfcElectricGeneratorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricGeneratorTypeEnum::IfcElectricGeneratorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricGeneratorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricGeneratorTypeEnum::IfcElectricGeneratorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricGeneratorTypeEnum::Value Ifc2x3::IfcElectricGeneratorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricGeneratorTypeEnum::Value) Ifc2x3::IfcElectricGeneratorTypeEnum::IfcElectricGeneratorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricGeneratorTypeEnum::operator Ifc2x3::IfcElectricGeneratorTypeEnum::Value() const {
    return (Ifc2x3::IfcElectricGeneratorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricHeaterTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[290]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricHeaterTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[290]); }

/*
Ifc2x3::IfcElectricHeaterTypeEnum::IfcElectricHeaterTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricHeaterTypeEnum::IfcElectricHeaterTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricHeaterTypeEnum::IfcElectricHeaterTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricHeaterTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricHeaterTypeEnum::IfcElectricHeaterTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricHeaterTypeEnum::Value Ifc2x3::IfcElectricHeaterTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricHeaterTypeEnum::Value) Ifc2x3::IfcElectricHeaterTypeEnum::IfcElectricHeaterTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricHeaterTypeEnum::operator Ifc2x3::IfcElectricHeaterTypeEnum::Value() const {
    return (Ifc2x3::IfcElectricHeaterTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricMotorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[292]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricMotorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[292]); }

/*
Ifc2x3::IfcElectricMotorTypeEnum::IfcElectricMotorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricMotorTypeEnum::IfcElectricMotorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricMotorTypeEnum::IfcElectricMotorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricMotorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricMotorTypeEnum::IfcElectricMotorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricMotorTypeEnum::Value Ifc2x3::IfcElectricMotorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricMotorTypeEnum::Value) Ifc2x3::IfcElectricMotorTypeEnum::IfcElectricMotorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricMotorTypeEnum::operator Ifc2x3::IfcElectricMotorTypeEnum::Value() const {
    return (Ifc2x3::IfcElectricMotorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElectricTimeControlTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[295]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElectricTimeControlTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[295]); }

/*
Ifc2x3::IfcElectricTimeControlTypeEnum::IfcElectricTimeControlTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElectricTimeControlTypeEnum::IfcElectricTimeControlTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElectricTimeControlTypeEnum::IfcElectricTimeControlTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElectricTimeControlTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcElectricTimeControlTypeEnum::IfcElectricTimeControlTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElectricTimeControlTypeEnum::Value Ifc2x3::IfcElectricTimeControlTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElectricTimeControlTypeEnum::Value) Ifc2x3::IfcElectricTimeControlTypeEnum::IfcElectricTimeControlTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElectricTimeControlTypeEnum::operator Ifc2x3::IfcElectricTimeControlTypeEnum::Value() const {
    return (Ifc2x3::IfcElectricTimeControlTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElementAssemblyTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[300]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElementAssemblyTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[300]); }

/*
Ifc2x3::IfcElementAssemblyTypeEnum::IfcElementAssemblyTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElementAssemblyTypeEnum::IfcElementAssemblyTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElementAssemblyTypeEnum::IfcElementAssemblyTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElementAssemblyTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcElementAssemblyTypeEnum::IfcElementAssemblyTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElementAssemblyTypeEnum::Value Ifc2x3::IfcElementAssemblyTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElementAssemblyTypeEnum::Value) Ifc2x3::IfcElementAssemblyTypeEnum::IfcElementAssemblyTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElementAssemblyTypeEnum::operator Ifc2x3::IfcElementAssemblyTypeEnum::Value() const {
    return (Ifc2x3::IfcElementAssemblyTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcElementCompositionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[303]); }
const IfcParse::enumeration_type& Ifc2x3::IfcElementCompositionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[303]); }

/*
Ifc2x3::IfcElementCompositionEnum::IfcElementCompositionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcElementCompositionEnum::IfcElementCompositionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcElementCompositionEnum::IfcElementCompositionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcElementCompositionEnum::ToString(Value v) {
    return Ifc2x3::IfcElementCompositionEnum::IfcElementCompositionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcElementCompositionEnum::Value Ifc2x3::IfcElementCompositionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcElementCompositionEnum::Value) Ifc2x3::IfcElementCompositionEnum::IfcElementCompositionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcElementCompositionEnum::operator Ifc2x3::IfcElementCompositionEnum::Value() const {
    return (Ifc2x3::IfcElementCompositionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcEnergySequenceEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[312]); }
const IfcParse::enumeration_type& Ifc2x3::IfcEnergySequenceEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[312]); }

/*
Ifc2x3::IfcEnergySequenceEnum::IfcEnergySequenceEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcEnergySequenceEnum::IfcEnergySequenceEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcEnergySequenceEnum::IfcEnergySequenceEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcEnergySequenceEnum::ToString(Value v) {
    return Ifc2x3::IfcEnergySequenceEnum::IfcEnergySequenceEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcEnergySequenceEnum::Value Ifc2x3::IfcEnergySequenceEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcEnergySequenceEnum::Value) Ifc2x3::IfcEnergySequenceEnum::IfcEnergySequenceEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcEnergySequenceEnum::operator Ifc2x3::IfcEnergySequenceEnum::Value() const {
    return (Ifc2x3::IfcEnergySequenceEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcEnvironmentalImpactCategoryEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[313]); }
const IfcParse::enumeration_type& Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[313]); }

/*
Ifc2x3::IfcEnvironmentalImpactCategoryEnum::IfcEnvironmentalImpactCategoryEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcEnvironmentalImpactCategoryEnum::IfcEnvironmentalImpactCategoryEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcEnvironmentalImpactCategoryEnum::IfcEnvironmentalImpactCategoryEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcEnvironmentalImpactCategoryEnum::ToString(Value v) {
    return Ifc2x3::IfcEnvironmentalImpactCategoryEnum::IfcEnvironmentalImpactCategoryEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Value Ifc2x3::IfcEnvironmentalImpactCategoryEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Value) Ifc2x3::IfcEnvironmentalImpactCategoryEnum::IfcEnvironmentalImpactCategoryEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcEnvironmentalImpactCategoryEnum::operator Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Value() const {
    return (Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcEvaporativeCoolerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[318]); }
const IfcParse::enumeration_type& Ifc2x3::IfcEvaporativeCoolerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[318]); }

/*
Ifc2x3::IfcEvaporativeCoolerTypeEnum::IfcEvaporativeCoolerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcEvaporativeCoolerTypeEnum::IfcEvaporativeCoolerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcEvaporativeCoolerTypeEnum::IfcEvaporativeCoolerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcEvaporativeCoolerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcEvaporativeCoolerTypeEnum::IfcEvaporativeCoolerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcEvaporativeCoolerTypeEnum::Value Ifc2x3::IfcEvaporativeCoolerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcEvaporativeCoolerTypeEnum::Value) Ifc2x3::IfcEvaporativeCoolerTypeEnum::IfcEvaporativeCoolerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcEvaporativeCoolerTypeEnum::operator Ifc2x3::IfcEvaporativeCoolerTypeEnum::Value() const {
    return (Ifc2x3::IfcEvaporativeCoolerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcEvaporatorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[320]); }
const IfcParse::enumeration_type& Ifc2x3::IfcEvaporatorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[320]); }

/*
Ifc2x3::IfcEvaporatorTypeEnum::IfcEvaporatorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcEvaporatorTypeEnum::IfcEvaporatorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcEvaporatorTypeEnum::IfcEvaporatorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcEvaporatorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcEvaporatorTypeEnum::IfcEvaporatorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcEvaporatorTypeEnum::Value Ifc2x3::IfcEvaporatorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcEvaporatorTypeEnum::Value) Ifc2x3::IfcEvaporatorTypeEnum::IfcEvaporatorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcEvaporatorTypeEnum::operator Ifc2x3::IfcEvaporatorTypeEnum::Value() const {
    return (Ifc2x3::IfcEvaporatorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcFanTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[337]); }
const IfcParse::enumeration_type& Ifc2x3::IfcFanTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[337]); }

/*
Ifc2x3::IfcFanTypeEnum::IfcFanTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcFanTypeEnum::IfcFanTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcFanTypeEnum::IfcFanTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcFanTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcFanTypeEnum::IfcFanTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcFanTypeEnum::Value Ifc2x3::IfcFanTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcFanTypeEnum::Value) Ifc2x3::IfcFanTypeEnum::IfcFanTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcFanTypeEnum::operator Ifc2x3::IfcFanTypeEnum::Value() const {
    return (Ifc2x3::IfcFanTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcFilterTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[350]); }
const IfcParse::enumeration_type& Ifc2x3::IfcFilterTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[350]); }

/*
Ifc2x3::IfcFilterTypeEnum::IfcFilterTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcFilterTypeEnum::IfcFilterTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcFilterTypeEnum::IfcFilterTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcFilterTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcFilterTypeEnum::IfcFilterTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcFilterTypeEnum::Value Ifc2x3::IfcFilterTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcFilterTypeEnum::Value) Ifc2x3::IfcFilterTypeEnum::IfcFilterTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcFilterTypeEnum::operator Ifc2x3::IfcFilterTypeEnum::Value() const {
    return (Ifc2x3::IfcFilterTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcFireSuppressionTerminalTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[352]); }
const IfcParse::enumeration_type& Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[352]); }

/*
Ifc2x3::IfcFireSuppressionTerminalTypeEnum::IfcFireSuppressionTerminalTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcFireSuppressionTerminalTypeEnum::IfcFireSuppressionTerminalTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcFireSuppressionTerminalTypeEnum::IfcFireSuppressionTerminalTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcFireSuppressionTerminalTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcFireSuppressionTerminalTypeEnum::IfcFireSuppressionTerminalTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Value Ifc2x3::IfcFireSuppressionTerminalTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Value) Ifc2x3::IfcFireSuppressionTerminalTypeEnum::IfcFireSuppressionTerminalTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcFireSuppressionTerminalTypeEnum::operator Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Value() const {
    return (Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcFlowDirectionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[355]); }
const IfcParse::enumeration_type& Ifc2x3::IfcFlowDirectionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[355]); }

/*
Ifc2x3::IfcFlowDirectionEnum::IfcFlowDirectionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcFlowDirectionEnum::IfcFlowDirectionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcFlowDirectionEnum::IfcFlowDirectionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcFlowDirectionEnum::ToString(Value v) {
    return Ifc2x3::IfcFlowDirectionEnum::IfcFlowDirectionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcFlowDirectionEnum::Value Ifc2x3::IfcFlowDirectionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcFlowDirectionEnum::Value) Ifc2x3::IfcFlowDirectionEnum::IfcFlowDirectionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcFlowDirectionEnum::operator Ifc2x3::IfcFlowDirectionEnum::Value() const {
    return (Ifc2x3::IfcFlowDirectionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcFlowInstrumentTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[359]); }
const IfcParse::enumeration_type& Ifc2x3::IfcFlowInstrumentTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[359]); }

/*
Ifc2x3::IfcFlowInstrumentTypeEnum::IfcFlowInstrumentTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcFlowInstrumentTypeEnum::IfcFlowInstrumentTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcFlowInstrumentTypeEnum::IfcFlowInstrumentTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcFlowInstrumentTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcFlowInstrumentTypeEnum::IfcFlowInstrumentTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcFlowInstrumentTypeEnum::Value Ifc2x3::IfcFlowInstrumentTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcFlowInstrumentTypeEnum::Value) Ifc2x3::IfcFlowInstrumentTypeEnum::IfcFlowInstrumentTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcFlowInstrumentTypeEnum::operator Ifc2x3::IfcFlowInstrumentTypeEnum::Value() const {
    return (Ifc2x3::IfcFlowInstrumentTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcFlowMeterTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[361]); }
const IfcParse::enumeration_type& Ifc2x3::IfcFlowMeterTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[361]); }

/*
Ifc2x3::IfcFlowMeterTypeEnum::IfcFlowMeterTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcFlowMeterTypeEnum::IfcFlowMeterTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcFlowMeterTypeEnum::IfcFlowMeterTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcFlowMeterTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcFlowMeterTypeEnum::IfcFlowMeterTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcFlowMeterTypeEnum::Value Ifc2x3::IfcFlowMeterTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcFlowMeterTypeEnum::Value) Ifc2x3::IfcFlowMeterTypeEnum::IfcFlowMeterTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcFlowMeterTypeEnum::operator Ifc2x3::IfcFlowMeterTypeEnum::Value() const {
    return (Ifc2x3::IfcFlowMeterTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcFootingTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[377]); }
const IfcParse::enumeration_type& Ifc2x3::IfcFootingTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[377]); }

/*
Ifc2x3::IfcFootingTypeEnum::IfcFootingTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcFootingTypeEnum::IfcFootingTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcFootingTypeEnum::IfcFootingTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcFootingTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcFootingTypeEnum::IfcFootingTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcFootingTypeEnum::Value Ifc2x3::IfcFootingTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcFootingTypeEnum::Value) Ifc2x3::IfcFootingTypeEnum::IfcFootingTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcFootingTypeEnum::operator Ifc2x3::IfcFootingTypeEnum::Value() const {
    return (Ifc2x3::IfcFootingTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcGasTerminalTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[386]); }
const IfcParse::enumeration_type& Ifc2x3::IfcGasTerminalTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[386]); }

/*
Ifc2x3::IfcGasTerminalTypeEnum::IfcGasTerminalTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcGasTerminalTypeEnum::IfcGasTerminalTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcGasTerminalTypeEnum::IfcGasTerminalTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcGasTerminalTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcGasTerminalTypeEnum::IfcGasTerminalTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcGasTerminalTypeEnum::Value Ifc2x3::IfcGasTerminalTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcGasTerminalTypeEnum::Value) Ifc2x3::IfcGasTerminalTypeEnum::IfcGasTerminalTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcGasTerminalTypeEnum::operator Ifc2x3::IfcGasTerminalTypeEnum::Value() const {
    return (Ifc2x3::IfcGasTerminalTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcGeometricProjectionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[390]); }
const IfcParse::enumeration_type& Ifc2x3::IfcGeometricProjectionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[390]); }

/*
Ifc2x3::IfcGeometricProjectionEnum::IfcGeometricProjectionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcGeometricProjectionEnum::IfcGeometricProjectionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcGeometricProjectionEnum::IfcGeometricProjectionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcGeometricProjectionEnum::ToString(Value v) {
    return Ifc2x3::IfcGeometricProjectionEnum::IfcGeometricProjectionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcGeometricProjectionEnum::Value Ifc2x3::IfcGeometricProjectionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcGeometricProjectionEnum::Value) Ifc2x3::IfcGeometricProjectionEnum::IfcGeometricProjectionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcGeometricProjectionEnum::operator Ifc2x3::IfcGeometricProjectionEnum::Value() const {
    return (Ifc2x3::IfcGeometricProjectionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcGlobalOrLocalEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[397]); }
const IfcParse::enumeration_type& Ifc2x3::IfcGlobalOrLocalEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[397]); }

/*
Ifc2x3::IfcGlobalOrLocalEnum::IfcGlobalOrLocalEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcGlobalOrLocalEnum::IfcGlobalOrLocalEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcGlobalOrLocalEnum::IfcGlobalOrLocalEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcGlobalOrLocalEnum::ToString(Value v) {
    return Ifc2x3::IfcGlobalOrLocalEnum::IfcGlobalOrLocalEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcGlobalOrLocalEnum::Value Ifc2x3::IfcGlobalOrLocalEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcGlobalOrLocalEnum::Value) Ifc2x3::IfcGlobalOrLocalEnum::IfcGlobalOrLocalEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcGlobalOrLocalEnum::operator Ifc2x3::IfcGlobalOrLocalEnum::Value() const {
    return (Ifc2x3::IfcGlobalOrLocalEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcHeatExchangerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[405]); }
const IfcParse::enumeration_type& Ifc2x3::IfcHeatExchangerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[405]); }

/*
Ifc2x3::IfcHeatExchangerTypeEnum::IfcHeatExchangerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcHeatExchangerTypeEnum::IfcHeatExchangerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcHeatExchangerTypeEnum::IfcHeatExchangerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcHeatExchangerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcHeatExchangerTypeEnum::IfcHeatExchangerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcHeatExchangerTypeEnum::Value Ifc2x3::IfcHeatExchangerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcHeatExchangerTypeEnum::Value) Ifc2x3::IfcHeatExchangerTypeEnum::IfcHeatExchangerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcHeatExchangerTypeEnum::operator Ifc2x3::IfcHeatExchangerTypeEnum::Value() const {
    return (Ifc2x3::IfcHeatExchangerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcHumidifierTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[410]); }
const IfcParse::enumeration_type& Ifc2x3::IfcHumidifierTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[410]); }

/*
Ifc2x3::IfcHumidifierTypeEnum::IfcHumidifierTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcHumidifierTypeEnum::IfcHumidifierTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcHumidifierTypeEnum::IfcHumidifierTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcHumidifierTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcHumidifierTypeEnum::IfcHumidifierTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcHumidifierTypeEnum::Value Ifc2x3::IfcHumidifierTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcHumidifierTypeEnum::Value) Ifc2x3::IfcHumidifierTypeEnum::IfcHumidifierTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcHumidifierTypeEnum::operator Ifc2x3::IfcHumidifierTypeEnum::Value() const {
    return (Ifc2x3::IfcHumidifierTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcInternalOrExternalEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[418]); }
const IfcParse::enumeration_type& Ifc2x3::IfcInternalOrExternalEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[418]); }

/*
Ifc2x3::IfcInternalOrExternalEnum::IfcInternalOrExternalEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcInternalOrExternalEnum::IfcInternalOrExternalEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcInternalOrExternalEnum::IfcInternalOrExternalEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcInternalOrExternalEnum::ToString(Value v) {
    return Ifc2x3::IfcInternalOrExternalEnum::IfcInternalOrExternalEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcInternalOrExternalEnum::Value Ifc2x3::IfcInternalOrExternalEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcInternalOrExternalEnum::Value) Ifc2x3::IfcInternalOrExternalEnum::IfcInternalOrExternalEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcInternalOrExternalEnum::operator Ifc2x3::IfcInternalOrExternalEnum::Value() const {
    return (Ifc2x3::IfcInternalOrExternalEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcInventoryTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[420]); }
const IfcParse::enumeration_type& Ifc2x3::IfcInventoryTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[420]); }

/*
Ifc2x3::IfcInventoryTypeEnum::IfcInventoryTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcInventoryTypeEnum::IfcInventoryTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcInventoryTypeEnum::IfcInventoryTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcInventoryTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcInventoryTypeEnum::IfcInventoryTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcInventoryTypeEnum::Value Ifc2x3::IfcInventoryTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcInventoryTypeEnum::Value) Ifc2x3::IfcInventoryTypeEnum::IfcInventoryTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcInventoryTypeEnum::operator Ifc2x3::IfcInventoryTypeEnum::Value() const {
    return (Ifc2x3::IfcInventoryTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcJunctionBoxTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[427]); }
const IfcParse::enumeration_type& Ifc2x3::IfcJunctionBoxTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[427]); }

/*
Ifc2x3::IfcJunctionBoxTypeEnum::IfcJunctionBoxTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcJunctionBoxTypeEnum::IfcJunctionBoxTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcJunctionBoxTypeEnum::IfcJunctionBoxTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcJunctionBoxTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcJunctionBoxTypeEnum::IfcJunctionBoxTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcJunctionBoxTypeEnum::Value Ifc2x3::IfcJunctionBoxTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcJunctionBoxTypeEnum::Value) Ifc2x3::IfcJunctionBoxTypeEnum::IfcJunctionBoxTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcJunctionBoxTypeEnum::operator Ifc2x3::IfcJunctionBoxTypeEnum::Value() const {
    return (Ifc2x3::IfcJunctionBoxTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcLampTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[432]); }
const IfcParse::enumeration_type& Ifc2x3::IfcLampTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[432]); }

/*
Ifc2x3::IfcLampTypeEnum::IfcLampTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcLampTypeEnum::IfcLampTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcLampTypeEnum::IfcLampTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcLampTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcLampTypeEnum::IfcLampTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcLampTypeEnum::Value Ifc2x3::IfcLampTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcLampTypeEnum::Value) Ifc2x3::IfcLampTypeEnum::IfcLampTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcLampTypeEnum::operator Ifc2x3::IfcLampTypeEnum::Value() const {
    return (Ifc2x3::IfcLampTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcLayerSetDirectionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[434]); }
const IfcParse::enumeration_type& Ifc2x3::IfcLayerSetDirectionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[434]); }

/*
Ifc2x3::IfcLayerSetDirectionEnum::IfcLayerSetDirectionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcLayerSetDirectionEnum::IfcLayerSetDirectionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcLayerSetDirectionEnum::IfcLayerSetDirectionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcLayerSetDirectionEnum::ToString(Value v) {
    return Ifc2x3::IfcLayerSetDirectionEnum::IfcLayerSetDirectionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcLayerSetDirectionEnum::Value Ifc2x3::IfcLayerSetDirectionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcLayerSetDirectionEnum::Value) Ifc2x3::IfcLayerSetDirectionEnum::IfcLayerSetDirectionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcLayerSetDirectionEnum::operator Ifc2x3::IfcLayerSetDirectionEnum::Value() const {
    return (Ifc2x3::IfcLayerSetDirectionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcLightDistributionCurveEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[439]); }
const IfcParse::enumeration_type& Ifc2x3::IfcLightDistributionCurveEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[439]); }

/*
Ifc2x3::IfcLightDistributionCurveEnum::IfcLightDistributionCurveEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcLightDistributionCurveEnum::IfcLightDistributionCurveEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcLightDistributionCurveEnum::IfcLightDistributionCurveEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcLightDistributionCurveEnum::ToString(Value v) {
    return Ifc2x3::IfcLightDistributionCurveEnum::IfcLightDistributionCurveEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcLightDistributionCurveEnum::Value Ifc2x3::IfcLightDistributionCurveEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcLightDistributionCurveEnum::Value) Ifc2x3::IfcLightDistributionCurveEnum::IfcLightDistributionCurveEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcLightDistributionCurveEnum::operator Ifc2x3::IfcLightDistributionCurveEnum::Value() const {
    return (Ifc2x3::IfcLightDistributionCurveEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcLightEmissionSourceEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[442]); }
const IfcParse::enumeration_type& Ifc2x3::IfcLightEmissionSourceEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[442]); }

/*
Ifc2x3::IfcLightEmissionSourceEnum::IfcLightEmissionSourceEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcLightEmissionSourceEnum::IfcLightEmissionSourceEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcLightEmissionSourceEnum::IfcLightEmissionSourceEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcLightEmissionSourceEnum::ToString(Value v) {
    return Ifc2x3::IfcLightEmissionSourceEnum::IfcLightEmissionSourceEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcLightEmissionSourceEnum::Value Ifc2x3::IfcLightEmissionSourceEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcLightEmissionSourceEnum::Value) Ifc2x3::IfcLightEmissionSourceEnum::IfcLightEmissionSourceEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcLightEmissionSourceEnum::operator Ifc2x3::IfcLightEmissionSourceEnum::Value() const {
    return (Ifc2x3::IfcLightEmissionSourceEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcLightFixtureTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[444]); }
const IfcParse::enumeration_type& Ifc2x3::IfcLightFixtureTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[444]); }

/*
Ifc2x3::IfcLightFixtureTypeEnum::IfcLightFixtureTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcLightFixtureTypeEnum::IfcLightFixtureTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcLightFixtureTypeEnum::IfcLightFixtureTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcLightFixtureTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcLightFixtureTypeEnum::IfcLightFixtureTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcLightFixtureTypeEnum::Value Ifc2x3::IfcLightFixtureTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcLightFixtureTypeEnum::Value) Ifc2x3::IfcLightFixtureTypeEnum::IfcLightFixtureTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcLightFixtureTypeEnum::operator Ifc2x3::IfcLightFixtureTypeEnum::Value() const {
    return (Ifc2x3::IfcLightFixtureTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcLoadGroupTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[458]); }
const IfcParse::enumeration_type& Ifc2x3::IfcLoadGroupTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[458]); }

/*
Ifc2x3::IfcLoadGroupTypeEnum::IfcLoadGroupTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcLoadGroupTypeEnum::IfcLoadGroupTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcLoadGroupTypeEnum::IfcLoadGroupTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcLoadGroupTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcLoadGroupTypeEnum::IfcLoadGroupTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcLoadGroupTypeEnum::Value Ifc2x3::IfcLoadGroupTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcLoadGroupTypeEnum::Value) Ifc2x3::IfcLoadGroupTypeEnum::IfcLoadGroupTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcLoadGroupTypeEnum::operator Ifc2x3::IfcLoadGroupTypeEnum::Value() const {
    return (Ifc2x3::IfcLoadGroupTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcLogicalOperatorEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[462]); }
const IfcParse::enumeration_type& Ifc2x3::IfcLogicalOperatorEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[462]); }

/*
Ifc2x3::IfcLogicalOperatorEnum::IfcLogicalOperatorEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcLogicalOperatorEnum::IfcLogicalOperatorEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcLogicalOperatorEnum::IfcLogicalOperatorEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcLogicalOperatorEnum::ToString(Value v) {
    return Ifc2x3::IfcLogicalOperatorEnum::IfcLogicalOperatorEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcLogicalOperatorEnum::Value Ifc2x3::IfcLogicalOperatorEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcLogicalOperatorEnum::Value) Ifc2x3::IfcLogicalOperatorEnum::IfcLogicalOperatorEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcLogicalOperatorEnum::operator Ifc2x3::IfcLogicalOperatorEnum::Value() const {
    return (Ifc2x3::IfcLogicalOperatorEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcMemberTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[494]); }
const IfcParse::enumeration_type& Ifc2x3::IfcMemberTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[494]); }

/*
Ifc2x3::IfcMemberTypeEnum::IfcMemberTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcMemberTypeEnum::IfcMemberTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcMemberTypeEnum::IfcMemberTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcMemberTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcMemberTypeEnum::IfcMemberTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcMemberTypeEnum::Value Ifc2x3::IfcMemberTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcMemberTypeEnum::Value) Ifc2x3::IfcMemberTypeEnum::IfcMemberTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcMemberTypeEnum::operator Ifc2x3::IfcMemberTypeEnum::Value() const {
    return (Ifc2x3::IfcMemberTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcMotorConnectionTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[509]); }
const IfcParse::enumeration_type& Ifc2x3::IfcMotorConnectionTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[509]); }

/*
Ifc2x3::IfcMotorConnectionTypeEnum::IfcMotorConnectionTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcMotorConnectionTypeEnum::IfcMotorConnectionTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcMotorConnectionTypeEnum::IfcMotorConnectionTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcMotorConnectionTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcMotorConnectionTypeEnum::IfcMotorConnectionTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcMotorConnectionTypeEnum::Value Ifc2x3::IfcMotorConnectionTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcMotorConnectionTypeEnum::Value) Ifc2x3::IfcMotorConnectionTypeEnum::IfcMotorConnectionTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcMotorConnectionTypeEnum::operator Ifc2x3::IfcMotorConnectionTypeEnum::Value() const {
    return (Ifc2x3::IfcMotorConnectionTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcNullStyle::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[513]); }
const IfcParse::enumeration_type& Ifc2x3::IfcNullStyle::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[513]); }

/*
Ifc2x3::IfcNullStyle::IfcNullStyle(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcNullStyle::IfcNullStyle(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcNullStyle::IfcNullStyle(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcNullStyle::ToString(Value v) {
    return Ifc2x3::IfcNullStyle::IfcNullStyle::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcNullStyle::Value Ifc2x3::IfcNullStyle::FromString(const std::string& s) {
    return (Ifc2x3::IfcNullStyle::Value) Ifc2x3::IfcNullStyle::IfcNullStyle::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcNullStyle::operator Ifc2x3::IfcNullStyle::Value() const {
    return (Ifc2x3::IfcNullStyle::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcObjectTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[521]); }
const IfcParse::enumeration_type& Ifc2x3::IfcObjectTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[521]); }

/*
Ifc2x3::IfcObjectTypeEnum::IfcObjectTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcObjectTypeEnum::IfcObjectTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcObjectTypeEnum::IfcObjectTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcObjectTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcObjectTypeEnum::IfcObjectTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcObjectTypeEnum::Value Ifc2x3::IfcObjectTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcObjectTypeEnum::Value) Ifc2x3::IfcObjectTypeEnum::IfcObjectTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcObjectTypeEnum::operator Ifc2x3::IfcObjectTypeEnum::Value() const {
    return (Ifc2x3::IfcObjectTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcObjectiveEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[518]); }
const IfcParse::enumeration_type& Ifc2x3::IfcObjectiveEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[518]); }

/*
Ifc2x3::IfcObjectiveEnum::IfcObjectiveEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcObjectiveEnum::IfcObjectiveEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcObjectiveEnum::IfcObjectiveEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcObjectiveEnum::ToString(Value v) {
    return Ifc2x3::IfcObjectiveEnum::IfcObjectiveEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcObjectiveEnum::Value Ifc2x3::IfcObjectiveEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcObjectiveEnum::Value) Ifc2x3::IfcObjectiveEnum::IfcObjectiveEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcObjectiveEnum::operator Ifc2x3::IfcObjectiveEnum::Value() const {
    return (Ifc2x3::IfcObjectiveEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcOccupantTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[523]); }
const IfcParse::enumeration_type& Ifc2x3::IfcOccupantTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[523]); }

/*
Ifc2x3::IfcOccupantTypeEnum::IfcOccupantTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcOccupantTypeEnum::IfcOccupantTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcOccupantTypeEnum::IfcOccupantTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcOccupantTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcOccupantTypeEnum::IfcOccupantTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcOccupantTypeEnum::Value Ifc2x3::IfcOccupantTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcOccupantTypeEnum::Value) Ifc2x3::IfcOccupantTypeEnum::IfcOccupantTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcOccupantTypeEnum::operator Ifc2x3::IfcOccupantTypeEnum::Value() const {
    return (Ifc2x3::IfcOccupantTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcOutletTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[536]); }
const IfcParse::enumeration_type& Ifc2x3::IfcOutletTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[536]); }

/*
Ifc2x3::IfcOutletTypeEnum::IfcOutletTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcOutletTypeEnum::IfcOutletTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcOutletTypeEnum::IfcOutletTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcOutletTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcOutletTypeEnum::IfcOutletTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcOutletTypeEnum::Value Ifc2x3::IfcOutletTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcOutletTypeEnum::Value) Ifc2x3::IfcOutletTypeEnum::IfcOutletTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcOutletTypeEnum::operator Ifc2x3::IfcOutletTypeEnum::Value() const {
    return (Ifc2x3::IfcOutletTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPermeableCoveringOperationEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[542]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPermeableCoveringOperationEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[542]); }

/*
Ifc2x3::IfcPermeableCoveringOperationEnum::IfcPermeableCoveringOperationEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPermeableCoveringOperationEnum::IfcPermeableCoveringOperationEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPermeableCoveringOperationEnum::IfcPermeableCoveringOperationEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPermeableCoveringOperationEnum::ToString(Value v) {
    return Ifc2x3::IfcPermeableCoveringOperationEnum::IfcPermeableCoveringOperationEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPermeableCoveringOperationEnum::Value Ifc2x3::IfcPermeableCoveringOperationEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPermeableCoveringOperationEnum::Value) Ifc2x3::IfcPermeableCoveringOperationEnum::IfcPermeableCoveringOperationEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPermeableCoveringOperationEnum::operator Ifc2x3::IfcPermeableCoveringOperationEnum::Value() const {
    return (Ifc2x3::IfcPermeableCoveringOperationEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPhysicalOrVirtualEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[549]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPhysicalOrVirtualEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[549]); }

/*
Ifc2x3::IfcPhysicalOrVirtualEnum::IfcPhysicalOrVirtualEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPhysicalOrVirtualEnum::IfcPhysicalOrVirtualEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPhysicalOrVirtualEnum::IfcPhysicalOrVirtualEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPhysicalOrVirtualEnum::ToString(Value v) {
    return Ifc2x3::IfcPhysicalOrVirtualEnum::IfcPhysicalOrVirtualEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPhysicalOrVirtualEnum::Value Ifc2x3::IfcPhysicalOrVirtualEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPhysicalOrVirtualEnum::Value) Ifc2x3::IfcPhysicalOrVirtualEnum::IfcPhysicalOrVirtualEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPhysicalOrVirtualEnum::operator Ifc2x3::IfcPhysicalOrVirtualEnum::Value() const {
    return (Ifc2x3::IfcPhysicalOrVirtualEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPileConstructionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[553]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPileConstructionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[553]); }

/*
Ifc2x3::IfcPileConstructionEnum::IfcPileConstructionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPileConstructionEnum::IfcPileConstructionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPileConstructionEnum::IfcPileConstructionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPileConstructionEnum::ToString(Value v) {
    return Ifc2x3::IfcPileConstructionEnum::IfcPileConstructionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPileConstructionEnum::Value Ifc2x3::IfcPileConstructionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPileConstructionEnum::Value) Ifc2x3::IfcPileConstructionEnum::IfcPileConstructionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPileConstructionEnum::operator Ifc2x3::IfcPileConstructionEnum::Value() const {
    return (Ifc2x3::IfcPileConstructionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPileTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[554]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPileTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[554]); }

/*
Ifc2x3::IfcPileTypeEnum::IfcPileTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPileTypeEnum::IfcPileTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPileTypeEnum::IfcPileTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPileTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcPileTypeEnum::IfcPileTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPileTypeEnum::Value Ifc2x3::IfcPileTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPileTypeEnum::Value) Ifc2x3::IfcPileTypeEnum::IfcPileTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPileTypeEnum::operator Ifc2x3::IfcPileTypeEnum::Value() const {
    return (Ifc2x3::IfcPileTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPipeFittingTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[556]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPipeFittingTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[556]); }

/*
Ifc2x3::IfcPipeFittingTypeEnum::IfcPipeFittingTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPipeFittingTypeEnum::IfcPipeFittingTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPipeFittingTypeEnum::IfcPipeFittingTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPipeFittingTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcPipeFittingTypeEnum::IfcPipeFittingTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPipeFittingTypeEnum::Value Ifc2x3::IfcPipeFittingTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPipeFittingTypeEnum::Value) Ifc2x3::IfcPipeFittingTypeEnum::IfcPipeFittingTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPipeFittingTypeEnum::operator Ifc2x3::IfcPipeFittingTypeEnum::Value() const {
    return (Ifc2x3::IfcPipeFittingTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPipeSegmentTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[558]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPipeSegmentTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[558]); }

/*
Ifc2x3::IfcPipeSegmentTypeEnum::IfcPipeSegmentTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPipeSegmentTypeEnum::IfcPipeSegmentTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPipeSegmentTypeEnum::IfcPipeSegmentTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPipeSegmentTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcPipeSegmentTypeEnum::IfcPipeSegmentTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPipeSegmentTypeEnum::Value Ifc2x3::IfcPipeSegmentTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPipeSegmentTypeEnum::Value) Ifc2x3::IfcPipeSegmentTypeEnum::IfcPipeSegmentTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPipeSegmentTypeEnum::operator Ifc2x3::IfcPipeSegmentTypeEnum::Value() const {
    return (Ifc2x3::IfcPipeSegmentTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPlateTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[568]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPlateTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[568]); }

/*
Ifc2x3::IfcPlateTypeEnum::IfcPlateTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPlateTypeEnum::IfcPlateTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPlateTypeEnum::IfcPlateTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPlateTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcPlateTypeEnum::IfcPlateTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPlateTypeEnum::Value Ifc2x3::IfcPlateTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPlateTypeEnum::Value) Ifc2x3::IfcPlateTypeEnum::IfcPlateTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPlateTypeEnum::operator Ifc2x3::IfcPlateTypeEnum::Value() const {
    return (Ifc2x3::IfcPlateTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcProcedureTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[598]); }
const IfcParse::enumeration_type& Ifc2x3::IfcProcedureTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[598]); }

/*
Ifc2x3::IfcProcedureTypeEnum::IfcProcedureTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcProcedureTypeEnum::IfcProcedureTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcProcedureTypeEnum::IfcProcedureTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcProcedureTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcProcedureTypeEnum::IfcProcedureTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcProcedureTypeEnum::Value Ifc2x3::IfcProcedureTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcProcedureTypeEnum::Value) Ifc2x3::IfcProcedureTypeEnum::IfcProcedureTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcProcedureTypeEnum::operator Ifc2x3::IfcProcedureTypeEnum::Value() const {
    return (Ifc2x3::IfcProcedureTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcProfileTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[606]); }
const IfcParse::enumeration_type& Ifc2x3::IfcProfileTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[606]); }

/*
Ifc2x3::IfcProfileTypeEnum::IfcProfileTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcProfileTypeEnum::IfcProfileTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcProfileTypeEnum::IfcProfileTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcProfileTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcProfileTypeEnum::IfcProfileTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcProfileTypeEnum::Value Ifc2x3::IfcProfileTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcProfileTypeEnum::Value) Ifc2x3::IfcProfileTypeEnum::IfcProfileTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcProfileTypeEnum::operator Ifc2x3::IfcProfileTypeEnum::Value() const {
    return (Ifc2x3::IfcProfileTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcProjectOrderRecordTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[613]); }
const IfcParse::enumeration_type& Ifc2x3::IfcProjectOrderRecordTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[613]); }

/*
Ifc2x3::IfcProjectOrderRecordTypeEnum::IfcProjectOrderRecordTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcProjectOrderRecordTypeEnum::IfcProjectOrderRecordTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcProjectOrderRecordTypeEnum::IfcProjectOrderRecordTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcProjectOrderRecordTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcProjectOrderRecordTypeEnum::IfcProjectOrderRecordTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcProjectOrderRecordTypeEnum::Value Ifc2x3::IfcProjectOrderRecordTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcProjectOrderRecordTypeEnum::Value) Ifc2x3::IfcProjectOrderRecordTypeEnum::IfcProjectOrderRecordTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcProjectOrderRecordTypeEnum::operator Ifc2x3::IfcProjectOrderRecordTypeEnum::Value() const {
    return (Ifc2x3::IfcProjectOrderRecordTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcProjectOrderTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[614]); }
const IfcParse::enumeration_type& Ifc2x3::IfcProjectOrderTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[614]); }

/*
Ifc2x3::IfcProjectOrderTypeEnum::IfcProjectOrderTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcProjectOrderTypeEnum::IfcProjectOrderTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcProjectOrderTypeEnum::IfcProjectOrderTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcProjectOrderTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcProjectOrderTypeEnum::IfcProjectOrderTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcProjectOrderTypeEnum::Value Ifc2x3::IfcProjectOrderTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcProjectOrderTypeEnum::Value) Ifc2x3::IfcProjectOrderTypeEnum::IfcProjectOrderTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcProjectOrderTypeEnum::operator Ifc2x3::IfcProjectOrderTypeEnum::Value() const {
    return (Ifc2x3::IfcProjectOrderTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcProjectedOrTrueLengthEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[608]); }
const IfcParse::enumeration_type& Ifc2x3::IfcProjectedOrTrueLengthEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[608]); }

/*
Ifc2x3::IfcProjectedOrTrueLengthEnum::IfcProjectedOrTrueLengthEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcProjectedOrTrueLengthEnum::IfcProjectedOrTrueLengthEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcProjectedOrTrueLengthEnum::IfcProjectedOrTrueLengthEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcProjectedOrTrueLengthEnum::ToString(Value v) {
    return Ifc2x3::IfcProjectedOrTrueLengthEnum::IfcProjectedOrTrueLengthEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcProjectedOrTrueLengthEnum::Value Ifc2x3::IfcProjectedOrTrueLengthEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcProjectedOrTrueLengthEnum::Value) Ifc2x3::IfcProjectedOrTrueLengthEnum::IfcProjectedOrTrueLengthEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcProjectedOrTrueLengthEnum::operator Ifc2x3::IfcProjectedOrTrueLengthEnum::Value() const {
    return (Ifc2x3::IfcProjectedOrTrueLengthEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPropertySourceEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[627]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPropertySourceEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[627]); }

/*
Ifc2x3::IfcPropertySourceEnum::IfcPropertySourceEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPropertySourceEnum::IfcPropertySourceEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPropertySourceEnum::IfcPropertySourceEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPropertySourceEnum::ToString(Value v) {
    return Ifc2x3::IfcPropertySourceEnum::IfcPropertySourceEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPropertySourceEnum::Value Ifc2x3::IfcPropertySourceEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPropertySourceEnum::Value) Ifc2x3::IfcPropertySourceEnum::IfcPropertySourceEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPropertySourceEnum::operator Ifc2x3::IfcPropertySourceEnum::Value() const {
    return (Ifc2x3::IfcPropertySourceEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcProtectiveDeviceTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[630]); }
const IfcParse::enumeration_type& Ifc2x3::IfcProtectiveDeviceTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[630]); }

/*
Ifc2x3::IfcProtectiveDeviceTypeEnum::IfcProtectiveDeviceTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcProtectiveDeviceTypeEnum::IfcProtectiveDeviceTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcProtectiveDeviceTypeEnum::IfcProtectiveDeviceTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcProtectiveDeviceTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcProtectiveDeviceTypeEnum::IfcProtectiveDeviceTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcProtectiveDeviceTypeEnum::Value Ifc2x3::IfcProtectiveDeviceTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcProtectiveDeviceTypeEnum::Value) Ifc2x3::IfcProtectiveDeviceTypeEnum::IfcProtectiveDeviceTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcProtectiveDeviceTypeEnum::operator Ifc2x3::IfcProtectiveDeviceTypeEnum::Value() const {
    return (Ifc2x3::IfcProtectiveDeviceTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcPumpTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[633]); }
const IfcParse::enumeration_type& Ifc2x3::IfcPumpTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[633]); }

/*
Ifc2x3::IfcPumpTypeEnum::IfcPumpTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcPumpTypeEnum::IfcPumpTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcPumpTypeEnum::IfcPumpTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcPumpTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcPumpTypeEnum::IfcPumpTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcPumpTypeEnum::Value Ifc2x3::IfcPumpTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcPumpTypeEnum::Value) Ifc2x3::IfcPumpTypeEnum::IfcPumpTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcPumpTypeEnum::operator Ifc2x3::IfcPumpTypeEnum::Value() const {
    return (Ifc2x3::IfcPumpTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcRailingTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[644]); }
const IfcParse::enumeration_type& Ifc2x3::IfcRailingTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[644]); }

/*
Ifc2x3::IfcRailingTypeEnum::IfcRailingTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcRailingTypeEnum::IfcRailingTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcRailingTypeEnum::IfcRailingTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcRailingTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcRailingTypeEnum::IfcRailingTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcRailingTypeEnum::Value Ifc2x3::IfcRailingTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcRailingTypeEnum::Value) Ifc2x3::IfcRailingTypeEnum::IfcRailingTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcRailingTypeEnum::operator Ifc2x3::IfcRailingTypeEnum::Value() const {
    return (Ifc2x3::IfcRailingTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcRampFlightTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[648]); }
const IfcParse::enumeration_type& Ifc2x3::IfcRampFlightTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[648]); }

/*
Ifc2x3::IfcRampFlightTypeEnum::IfcRampFlightTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcRampFlightTypeEnum::IfcRampFlightTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcRampFlightTypeEnum::IfcRampFlightTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcRampFlightTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcRampFlightTypeEnum::IfcRampFlightTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcRampFlightTypeEnum::Value Ifc2x3::IfcRampFlightTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcRampFlightTypeEnum::Value) Ifc2x3::IfcRampFlightTypeEnum::IfcRampFlightTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcRampFlightTypeEnum::operator Ifc2x3::IfcRampFlightTypeEnum::Value() const {
    return (Ifc2x3::IfcRampFlightTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcRampTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[649]); }
const IfcParse::enumeration_type& Ifc2x3::IfcRampTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[649]); }

/*
Ifc2x3::IfcRampTypeEnum::IfcRampTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcRampTypeEnum::IfcRampTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcRampTypeEnum::IfcRampTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcRampTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcRampTypeEnum::IfcRampTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcRampTypeEnum::Value Ifc2x3::IfcRampTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcRampTypeEnum::Value) Ifc2x3::IfcRampTypeEnum::IfcRampTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcRampTypeEnum::operator Ifc2x3::IfcRampTypeEnum::Value() const {
    return (Ifc2x3::IfcRampTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcReflectanceMethodEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[658]); }
const IfcParse::enumeration_type& Ifc2x3::IfcReflectanceMethodEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[658]); }

/*
Ifc2x3::IfcReflectanceMethodEnum::IfcReflectanceMethodEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcReflectanceMethodEnum::IfcReflectanceMethodEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcReflectanceMethodEnum::IfcReflectanceMethodEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcReflectanceMethodEnum::ToString(Value v) {
    return Ifc2x3::IfcReflectanceMethodEnum::IfcReflectanceMethodEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcReflectanceMethodEnum::Value Ifc2x3::IfcReflectanceMethodEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcReflectanceMethodEnum::Value) Ifc2x3::IfcReflectanceMethodEnum::IfcReflectanceMethodEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcReflectanceMethodEnum::operator Ifc2x3::IfcReflectanceMethodEnum::Value() const {
    return (Ifc2x3::IfcReflectanceMethodEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcReinforcingBarRoleEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[663]); }
const IfcParse::enumeration_type& Ifc2x3::IfcReinforcingBarRoleEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[663]); }

/*
Ifc2x3::IfcReinforcingBarRoleEnum::IfcReinforcingBarRoleEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcReinforcingBarRoleEnum::IfcReinforcingBarRoleEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcReinforcingBarRoleEnum::IfcReinforcingBarRoleEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcReinforcingBarRoleEnum::ToString(Value v) {
    return Ifc2x3::IfcReinforcingBarRoleEnum::IfcReinforcingBarRoleEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcReinforcingBarRoleEnum::Value Ifc2x3::IfcReinforcingBarRoleEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcReinforcingBarRoleEnum::Value) Ifc2x3::IfcReinforcingBarRoleEnum::IfcReinforcingBarRoleEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcReinforcingBarRoleEnum::operator Ifc2x3::IfcReinforcingBarRoleEnum::Value() const {
    return (Ifc2x3::IfcReinforcingBarRoleEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcReinforcingBarSurfaceEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[664]); }
const IfcParse::enumeration_type& Ifc2x3::IfcReinforcingBarSurfaceEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[664]); }

/*
Ifc2x3::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurfaceEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurfaceEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurfaceEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcReinforcingBarSurfaceEnum::ToString(Value v) {
    return Ifc2x3::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurfaceEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcReinforcingBarSurfaceEnum::Value Ifc2x3::IfcReinforcingBarSurfaceEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcReinforcingBarSurfaceEnum::Value) Ifc2x3::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurfaceEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcReinforcingBarSurfaceEnum::operator Ifc2x3::IfcReinforcingBarSurfaceEnum::Value() const {
    return (Ifc2x3::IfcReinforcingBarSurfaceEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcResourceConsumptionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[723]); }
const IfcParse::enumeration_type& Ifc2x3::IfcResourceConsumptionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[723]); }

/*
Ifc2x3::IfcResourceConsumptionEnum::IfcResourceConsumptionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcResourceConsumptionEnum::IfcResourceConsumptionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcResourceConsumptionEnum::IfcResourceConsumptionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcResourceConsumptionEnum::ToString(Value v) {
    return Ifc2x3::IfcResourceConsumptionEnum::IfcResourceConsumptionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcResourceConsumptionEnum::Value Ifc2x3::IfcResourceConsumptionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcResourceConsumptionEnum::Value) Ifc2x3::IfcResourceConsumptionEnum::IfcResourceConsumptionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcResourceConsumptionEnum::operator Ifc2x3::IfcResourceConsumptionEnum::Value() const {
    return (Ifc2x3::IfcResourceConsumptionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcRibPlateDirectionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[725]); }
const IfcParse::enumeration_type& Ifc2x3::IfcRibPlateDirectionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[725]); }

/*
Ifc2x3::IfcRibPlateDirectionEnum::IfcRibPlateDirectionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcRibPlateDirectionEnum::IfcRibPlateDirectionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcRibPlateDirectionEnum::IfcRibPlateDirectionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcRibPlateDirectionEnum::ToString(Value v) {
    return Ifc2x3::IfcRibPlateDirectionEnum::IfcRibPlateDirectionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcRibPlateDirectionEnum::Value Ifc2x3::IfcRibPlateDirectionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcRibPlateDirectionEnum::Value) Ifc2x3::IfcRibPlateDirectionEnum::IfcRibPlateDirectionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcRibPlateDirectionEnum::operator Ifc2x3::IfcRibPlateDirectionEnum::Value() const {
    return (Ifc2x3::IfcRibPlateDirectionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcRoleEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[729]); }
const IfcParse::enumeration_type& Ifc2x3::IfcRoleEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[729]); }

/*
Ifc2x3::IfcRoleEnum::IfcRoleEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcRoleEnum::IfcRoleEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcRoleEnum::IfcRoleEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcRoleEnum::ToString(Value v) {
    return Ifc2x3::IfcRoleEnum::IfcRoleEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcRoleEnum::Value Ifc2x3::IfcRoleEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcRoleEnum::Value) Ifc2x3::IfcRoleEnum::IfcRoleEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcRoleEnum::operator Ifc2x3::IfcRoleEnum::Value() const {
    return (Ifc2x3::IfcRoleEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcRoofTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[731]); }
const IfcParse::enumeration_type& Ifc2x3::IfcRoofTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[731]); }

/*
Ifc2x3::IfcRoofTypeEnum::IfcRoofTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcRoofTypeEnum::IfcRoofTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcRoofTypeEnum::IfcRoofTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcRoofTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcRoofTypeEnum::IfcRoofTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcRoofTypeEnum::Value Ifc2x3::IfcRoofTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcRoofTypeEnum::Value) Ifc2x3::IfcRoofTypeEnum::IfcRoofTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcRoofTypeEnum::operator Ifc2x3::IfcRoofTypeEnum::Value() const {
    return (Ifc2x3::IfcRoofTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSIPrefix::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[763]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSIPrefix::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[763]); }

/*
Ifc2x3::IfcSIPrefix::IfcSIPrefix(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSIPrefix::IfcSIPrefix(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSIPrefix::IfcSIPrefix(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSIPrefix::ToString(Value v) {
    return Ifc2x3::IfcSIPrefix::IfcSIPrefix::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSIPrefix::Value Ifc2x3::IfcSIPrefix::FromString(const std::string& s) {
    return (Ifc2x3::IfcSIPrefix::Value) Ifc2x3::IfcSIPrefix::IfcSIPrefix::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSIPrefix::operator Ifc2x3::IfcSIPrefix::Value() const {
    return (Ifc2x3::IfcSIPrefix::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSIUnitName::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[766]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSIUnitName::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[766]); }

/*
Ifc2x3::IfcSIUnitName::IfcSIUnitName(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSIUnitName::IfcSIUnitName(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSIUnitName::IfcSIUnitName(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSIUnitName::ToString(Value v) {
    return Ifc2x3::IfcSIUnitName::IfcSIUnitName::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSIUnitName::Value Ifc2x3::IfcSIUnitName::FromString(const std::string& s) {
    return (Ifc2x3::IfcSIUnitName::Value) Ifc2x3::IfcSIUnitName::IfcSIUnitName::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSIUnitName::operator Ifc2x3::IfcSIUnitName::Value() const {
    return (Ifc2x3::IfcSIUnitName::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSanitaryTerminalTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[739]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSanitaryTerminalTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[739]); }

/*
Ifc2x3::IfcSanitaryTerminalTypeEnum::IfcSanitaryTerminalTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSanitaryTerminalTypeEnum::IfcSanitaryTerminalTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSanitaryTerminalTypeEnum::IfcSanitaryTerminalTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSanitaryTerminalTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcSanitaryTerminalTypeEnum::IfcSanitaryTerminalTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSanitaryTerminalTypeEnum::Value Ifc2x3::IfcSanitaryTerminalTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSanitaryTerminalTypeEnum::Value) Ifc2x3::IfcSanitaryTerminalTypeEnum::IfcSanitaryTerminalTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSanitaryTerminalTypeEnum::operator Ifc2x3::IfcSanitaryTerminalTypeEnum::Value() const {
    return (Ifc2x3::IfcSanitaryTerminalTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSectionTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[747]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSectionTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[747]); }

/*
Ifc2x3::IfcSectionTypeEnum::IfcSectionTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSectionTypeEnum::IfcSectionTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSectionTypeEnum::IfcSectionTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSectionTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcSectionTypeEnum::IfcSectionTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSectionTypeEnum::Value Ifc2x3::IfcSectionTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSectionTypeEnum::Value) Ifc2x3::IfcSectionTypeEnum::IfcSectionTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSectionTypeEnum::operator Ifc2x3::IfcSectionTypeEnum::Value() const {
    return (Ifc2x3::IfcSectionTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSensorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[749]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSensorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[749]); }

/*
Ifc2x3::IfcSensorTypeEnum::IfcSensorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSensorTypeEnum::IfcSensorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSensorTypeEnum::IfcSensorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSensorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcSensorTypeEnum::IfcSensorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSensorTypeEnum::Value Ifc2x3::IfcSensorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSensorTypeEnum::Value) Ifc2x3::IfcSensorTypeEnum::IfcSensorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSensorTypeEnum::operator Ifc2x3::IfcSensorTypeEnum::Value() const {
    return (Ifc2x3::IfcSensorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSequenceEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[750]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSequenceEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[750]); }

/*
Ifc2x3::IfcSequenceEnum::IfcSequenceEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSequenceEnum::IfcSequenceEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSequenceEnum::IfcSequenceEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSequenceEnum::ToString(Value v) {
    return Ifc2x3::IfcSequenceEnum::IfcSequenceEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSequenceEnum::Value Ifc2x3::IfcSequenceEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSequenceEnum::Value) Ifc2x3::IfcSequenceEnum::IfcSequenceEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSequenceEnum::operator Ifc2x3::IfcSequenceEnum::Value() const {
    return (Ifc2x3::IfcSequenceEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcServiceLifeFactorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[753]); }
const IfcParse::enumeration_type& Ifc2x3::IfcServiceLifeFactorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[753]); }

/*
Ifc2x3::IfcServiceLifeFactorTypeEnum::IfcServiceLifeFactorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcServiceLifeFactorTypeEnum::IfcServiceLifeFactorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcServiceLifeFactorTypeEnum::IfcServiceLifeFactorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcServiceLifeFactorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcServiceLifeFactorTypeEnum::IfcServiceLifeFactorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcServiceLifeFactorTypeEnum::Value Ifc2x3::IfcServiceLifeFactorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcServiceLifeFactorTypeEnum::Value) Ifc2x3::IfcServiceLifeFactorTypeEnum::IfcServiceLifeFactorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcServiceLifeFactorTypeEnum::operator Ifc2x3::IfcServiceLifeFactorTypeEnum::Value() const {
    return (Ifc2x3::IfcServiceLifeFactorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcServiceLifeTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[754]); }
const IfcParse::enumeration_type& Ifc2x3::IfcServiceLifeTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[754]); }

/*
Ifc2x3::IfcServiceLifeTypeEnum::IfcServiceLifeTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcServiceLifeTypeEnum::IfcServiceLifeTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcServiceLifeTypeEnum::IfcServiceLifeTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcServiceLifeTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcServiceLifeTypeEnum::IfcServiceLifeTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcServiceLifeTypeEnum::Value Ifc2x3::IfcServiceLifeTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcServiceLifeTypeEnum::Value) Ifc2x3::IfcServiceLifeTypeEnum::IfcServiceLifeTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcServiceLifeTypeEnum::operator Ifc2x3::IfcServiceLifeTypeEnum::Value() const {
    return (Ifc2x3::IfcServiceLifeTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSlabTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[770]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSlabTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[770]); }

/*
Ifc2x3::IfcSlabTypeEnum::IfcSlabTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSlabTypeEnum::IfcSlabTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSlabTypeEnum::IfcSlabTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSlabTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcSlabTypeEnum::IfcSlabTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSlabTypeEnum::Value Ifc2x3::IfcSlabTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSlabTypeEnum::Value) Ifc2x3::IfcSlabTypeEnum::IfcSlabTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSlabTypeEnum::operator Ifc2x3::IfcSlabTypeEnum::Value() const {
    return (Ifc2x3::IfcSlabTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSoundScaleEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[777]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSoundScaleEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[777]); }

/*
Ifc2x3::IfcSoundScaleEnum::IfcSoundScaleEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSoundScaleEnum::IfcSoundScaleEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSoundScaleEnum::IfcSoundScaleEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSoundScaleEnum::ToString(Value v) {
    return Ifc2x3::IfcSoundScaleEnum::IfcSoundScaleEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSoundScaleEnum::Value Ifc2x3::IfcSoundScaleEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSoundScaleEnum::Value) Ifc2x3::IfcSoundScaleEnum::IfcSoundScaleEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSoundScaleEnum::operator Ifc2x3::IfcSoundScaleEnum::Value() const {
    return (Ifc2x3::IfcSoundScaleEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSpaceHeaterTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[781]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSpaceHeaterTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[781]); }

/*
Ifc2x3::IfcSpaceHeaterTypeEnum::IfcSpaceHeaterTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSpaceHeaterTypeEnum::IfcSpaceHeaterTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSpaceHeaterTypeEnum::IfcSpaceHeaterTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSpaceHeaterTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcSpaceHeaterTypeEnum::IfcSpaceHeaterTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSpaceHeaterTypeEnum::Value Ifc2x3::IfcSpaceHeaterTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSpaceHeaterTypeEnum::Value) Ifc2x3::IfcSpaceHeaterTypeEnum::IfcSpaceHeaterTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSpaceHeaterTypeEnum::operator Ifc2x3::IfcSpaceHeaterTypeEnum::Value() const {
    return (Ifc2x3::IfcSpaceHeaterTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSpaceTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[785]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSpaceTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[785]); }

/*
Ifc2x3::IfcSpaceTypeEnum::IfcSpaceTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSpaceTypeEnum::IfcSpaceTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSpaceTypeEnum::IfcSpaceTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSpaceTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcSpaceTypeEnum::IfcSpaceTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSpaceTypeEnum::Value Ifc2x3::IfcSpaceTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSpaceTypeEnum::Value) Ifc2x3::IfcSpaceTypeEnum::IfcSpaceTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSpaceTypeEnum::operator Ifc2x3::IfcSpaceTypeEnum::Value() const {
    return (Ifc2x3::IfcSpaceTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcStackTerminalTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[794]); }
const IfcParse::enumeration_type& Ifc2x3::IfcStackTerminalTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[794]); }

/*
Ifc2x3::IfcStackTerminalTypeEnum::IfcStackTerminalTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcStackTerminalTypeEnum::IfcStackTerminalTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcStackTerminalTypeEnum::IfcStackTerminalTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcStackTerminalTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcStackTerminalTypeEnum::IfcStackTerminalTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcStackTerminalTypeEnum::Value Ifc2x3::IfcStackTerminalTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcStackTerminalTypeEnum::Value) Ifc2x3::IfcStackTerminalTypeEnum::IfcStackTerminalTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcStackTerminalTypeEnum::operator Ifc2x3::IfcStackTerminalTypeEnum::Value() const {
    return (Ifc2x3::IfcStackTerminalTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcStairFlightTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[798]); }
const IfcParse::enumeration_type& Ifc2x3::IfcStairFlightTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[798]); }

/*
Ifc2x3::IfcStairFlightTypeEnum::IfcStairFlightTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcStairFlightTypeEnum::IfcStairFlightTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcStairFlightTypeEnum::IfcStairFlightTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcStairFlightTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcStairFlightTypeEnum::IfcStairFlightTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcStairFlightTypeEnum::Value Ifc2x3::IfcStairFlightTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcStairFlightTypeEnum::Value) Ifc2x3::IfcStairFlightTypeEnum::IfcStairFlightTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcStairFlightTypeEnum::operator Ifc2x3::IfcStairFlightTypeEnum::Value() const {
    return (Ifc2x3::IfcStairFlightTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcStairTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[799]); }
const IfcParse::enumeration_type& Ifc2x3::IfcStairTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[799]); }

/*
Ifc2x3::IfcStairTypeEnum::IfcStairTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcStairTypeEnum::IfcStairTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcStairTypeEnum::IfcStairTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcStairTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcStairTypeEnum::IfcStairTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcStairTypeEnum::Value Ifc2x3::IfcStairTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcStairTypeEnum::Value) Ifc2x3::IfcStairTypeEnum::IfcStairTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcStairTypeEnum::operator Ifc2x3::IfcStairTypeEnum::Value() const {
    return (Ifc2x3::IfcStairTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcStateEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[800]); }
const IfcParse::enumeration_type& Ifc2x3::IfcStateEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[800]); }

/*
Ifc2x3::IfcStateEnum::IfcStateEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcStateEnum::IfcStateEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcStateEnum::IfcStateEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcStateEnum::ToString(Value v) {
    return Ifc2x3::IfcStateEnum::IfcStateEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcStateEnum::Value Ifc2x3::IfcStateEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcStateEnum::Value) Ifc2x3::IfcStateEnum::IfcStateEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcStateEnum::operator Ifc2x3::IfcStateEnum::Value() const {
    return (Ifc2x3::IfcStateEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcStructuralCurveTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[810]); }
const IfcParse::enumeration_type& Ifc2x3::IfcStructuralCurveTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[810]); }

/*
Ifc2x3::IfcStructuralCurveTypeEnum::IfcStructuralCurveTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcStructuralCurveTypeEnum::IfcStructuralCurveTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcStructuralCurveTypeEnum::IfcStructuralCurveTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcStructuralCurveTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcStructuralCurveTypeEnum::IfcStructuralCurveTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcStructuralCurveTypeEnum::Value Ifc2x3::IfcStructuralCurveTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcStructuralCurveTypeEnum::Value) Ifc2x3::IfcStructuralCurveTypeEnum::IfcStructuralCurveTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcStructuralCurveTypeEnum::operator Ifc2x3::IfcStructuralCurveTypeEnum::Value() const {
    return (Ifc2x3::IfcStructuralCurveTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcStructuralSurfaceTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[837]); }
const IfcParse::enumeration_type& Ifc2x3::IfcStructuralSurfaceTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[837]); }

/*
Ifc2x3::IfcStructuralSurfaceTypeEnum::IfcStructuralSurfaceTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcStructuralSurfaceTypeEnum::IfcStructuralSurfaceTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcStructuralSurfaceTypeEnum::IfcStructuralSurfaceTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcStructuralSurfaceTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcStructuralSurfaceTypeEnum::IfcStructuralSurfaceTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcStructuralSurfaceTypeEnum::Value Ifc2x3::IfcStructuralSurfaceTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcStructuralSurfaceTypeEnum::Value) Ifc2x3::IfcStructuralSurfaceTypeEnum::IfcStructuralSurfaceTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcStructuralSurfaceTypeEnum::operator Ifc2x3::IfcStructuralSurfaceTypeEnum::Value() const {
    return (Ifc2x3::IfcStructuralSurfaceTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSurfaceSide::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[849]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSurfaceSide::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[849]); }

/*
Ifc2x3::IfcSurfaceSide::IfcSurfaceSide(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSurfaceSide::IfcSurfaceSide(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSurfaceSide::IfcSurfaceSide(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSurfaceSide::ToString(Value v) {
    return Ifc2x3::IfcSurfaceSide::IfcSurfaceSide::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSurfaceSide::Value Ifc2x3::IfcSurfaceSide::FromString(const std::string& s) {
    return (Ifc2x3::IfcSurfaceSide::Value) Ifc2x3::IfcSurfaceSide::IfcSurfaceSide::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSurfaceSide::operator Ifc2x3::IfcSurfaceSide::Value() const {
    return (Ifc2x3::IfcSurfaceSide::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSurfaceTextureEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[858]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSurfaceTextureEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[858]); }

/*
Ifc2x3::IfcSurfaceTextureEnum::IfcSurfaceTextureEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSurfaceTextureEnum::IfcSurfaceTextureEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSurfaceTextureEnum::IfcSurfaceTextureEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSurfaceTextureEnum::ToString(Value v) {
    return Ifc2x3::IfcSurfaceTextureEnum::IfcSurfaceTextureEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSurfaceTextureEnum::Value Ifc2x3::IfcSurfaceTextureEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSurfaceTextureEnum::Value) Ifc2x3::IfcSurfaceTextureEnum::IfcSurfaceTextureEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSurfaceTextureEnum::operator Ifc2x3::IfcSurfaceTextureEnum::Value() const {
    return (Ifc2x3::IfcSurfaceTextureEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcSwitchingDeviceTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[863]); }
const IfcParse::enumeration_type& Ifc2x3::IfcSwitchingDeviceTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[863]); }

/*
Ifc2x3::IfcSwitchingDeviceTypeEnum::IfcSwitchingDeviceTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcSwitchingDeviceTypeEnum::IfcSwitchingDeviceTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcSwitchingDeviceTypeEnum::IfcSwitchingDeviceTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcSwitchingDeviceTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcSwitchingDeviceTypeEnum::IfcSwitchingDeviceTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcSwitchingDeviceTypeEnum::Value Ifc2x3::IfcSwitchingDeviceTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcSwitchingDeviceTypeEnum::Value) Ifc2x3::IfcSwitchingDeviceTypeEnum::IfcSwitchingDeviceTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcSwitchingDeviceTypeEnum::operator Ifc2x3::IfcSwitchingDeviceTypeEnum::Value() const {
    return (Ifc2x3::IfcSwitchingDeviceTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTankTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[871]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTankTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[871]); }

/*
Ifc2x3::IfcTankTypeEnum::IfcTankTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTankTypeEnum::IfcTankTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTankTypeEnum::IfcTankTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTankTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcTankTypeEnum::IfcTankTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTankTypeEnum::Value Ifc2x3::IfcTankTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcTankTypeEnum::Value) Ifc2x3::IfcTankTypeEnum::IfcTankTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTankTypeEnum::operator Ifc2x3::IfcTankTypeEnum::Value() const {
    return (Ifc2x3::IfcTankTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTendonTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[877]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTendonTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[877]); }

/*
Ifc2x3::IfcTendonTypeEnum::IfcTendonTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTendonTypeEnum::IfcTendonTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTendonTypeEnum::IfcTendonTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTendonTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcTendonTypeEnum::IfcTendonTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTendonTypeEnum::Value Ifc2x3::IfcTendonTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcTendonTypeEnum::Value) Ifc2x3::IfcTendonTypeEnum::IfcTendonTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTendonTypeEnum::operator Ifc2x3::IfcTendonTypeEnum::Value() const {
    return (Ifc2x3::IfcTendonTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTextPath::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[886]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTextPath::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[886]); }

/*
Ifc2x3::IfcTextPath::IfcTextPath(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTextPath::IfcTextPath(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTextPath::IfcTextPath(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTextPath::ToString(Value v) {
    return Ifc2x3::IfcTextPath::IfcTextPath::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTextPath::Value Ifc2x3::IfcTextPath::FromString(const std::string& s) {
    return (Ifc2x3::IfcTextPath::Value) Ifc2x3::IfcTextPath::IfcTextPath::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTextPath::operator Ifc2x3::IfcTextPath::Value() const {
    return (Ifc2x3::IfcTextPath::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcThermalLoadSourceEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[901]); }
const IfcParse::enumeration_type& Ifc2x3::IfcThermalLoadSourceEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[901]); }

/*
Ifc2x3::IfcThermalLoadSourceEnum::IfcThermalLoadSourceEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcThermalLoadSourceEnum::IfcThermalLoadSourceEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcThermalLoadSourceEnum::IfcThermalLoadSourceEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcThermalLoadSourceEnum::ToString(Value v) {
    return Ifc2x3::IfcThermalLoadSourceEnum::IfcThermalLoadSourceEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcThermalLoadSourceEnum::Value Ifc2x3::IfcThermalLoadSourceEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcThermalLoadSourceEnum::Value) Ifc2x3::IfcThermalLoadSourceEnum::IfcThermalLoadSourceEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcThermalLoadSourceEnum::operator Ifc2x3::IfcThermalLoadSourceEnum::Value() const {
    return (Ifc2x3::IfcThermalLoadSourceEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcThermalLoadTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[902]); }
const IfcParse::enumeration_type& Ifc2x3::IfcThermalLoadTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[902]); }

/*
Ifc2x3::IfcThermalLoadTypeEnum::IfcThermalLoadTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcThermalLoadTypeEnum::IfcThermalLoadTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcThermalLoadTypeEnum::IfcThermalLoadTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcThermalLoadTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcThermalLoadTypeEnum::IfcThermalLoadTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcThermalLoadTypeEnum::Value Ifc2x3::IfcThermalLoadTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcThermalLoadTypeEnum::Value) Ifc2x3::IfcThermalLoadTypeEnum::IfcThermalLoadTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcThermalLoadTypeEnum::operator Ifc2x3::IfcThermalLoadTypeEnum::Value() const {
    return (Ifc2x3::IfcThermalLoadTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTimeSeriesDataTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[909]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTimeSeriesDataTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[909]); }

/*
Ifc2x3::IfcTimeSeriesDataTypeEnum::IfcTimeSeriesDataTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTimeSeriesDataTypeEnum::IfcTimeSeriesDataTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTimeSeriesDataTypeEnum::IfcTimeSeriesDataTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTimeSeriesDataTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcTimeSeriesDataTypeEnum::IfcTimeSeriesDataTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTimeSeriesDataTypeEnum::Value Ifc2x3::IfcTimeSeriesDataTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcTimeSeriesDataTypeEnum::Value) Ifc2x3::IfcTimeSeriesDataTypeEnum::IfcTimeSeriesDataTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTimeSeriesDataTypeEnum::operator Ifc2x3::IfcTimeSeriesDataTypeEnum::Value() const {
    return (Ifc2x3::IfcTimeSeriesDataTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTimeSeriesScheduleTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[912]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[912]); }

/*
Ifc2x3::IfcTimeSeriesScheduleTypeEnum::IfcTimeSeriesScheduleTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTimeSeriesScheduleTypeEnum::IfcTimeSeriesScheduleTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTimeSeriesScheduleTypeEnum::IfcTimeSeriesScheduleTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTimeSeriesScheduleTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcTimeSeriesScheduleTypeEnum::IfcTimeSeriesScheduleTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Value Ifc2x3::IfcTimeSeriesScheduleTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Value) Ifc2x3::IfcTimeSeriesScheduleTypeEnum::IfcTimeSeriesScheduleTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTimeSeriesScheduleTypeEnum::operator Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Value() const {
    return (Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTransformerTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[919]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTransformerTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[919]); }

/*
Ifc2x3::IfcTransformerTypeEnum::IfcTransformerTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTransformerTypeEnum::IfcTransformerTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTransformerTypeEnum::IfcTransformerTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTransformerTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcTransformerTypeEnum::IfcTransformerTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTransformerTypeEnum::Value Ifc2x3::IfcTransformerTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcTransformerTypeEnum::Value) Ifc2x3::IfcTransformerTypeEnum::IfcTransformerTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTransformerTypeEnum::operator Ifc2x3::IfcTransformerTypeEnum::Value() const {
    return (Ifc2x3::IfcTransformerTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTransitionCode::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[920]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTransitionCode::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[920]); }

/*
Ifc2x3::IfcTransitionCode::IfcTransitionCode(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTransitionCode::IfcTransitionCode(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTransitionCode::IfcTransitionCode(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTransitionCode::ToString(Value v) {
    return Ifc2x3::IfcTransitionCode::IfcTransitionCode::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTransitionCode::Value Ifc2x3::IfcTransitionCode::FromString(const std::string& s) {
    return (Ifc2x3::IfcTransitionCode::Value) Ifc2x3::IfcTransitionCode::IfcTransitionCode::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTransitionCode::operator Ifc2x3::IfcTransitionCode::Value() const {
    return (Ifc2x3::IfcTransitionCode::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTransportElementTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[923]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTransportElementTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[923]); }

/*
Ifc2x3::IfcTransportElementTypeEnum::IfcTransportElementTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTransportElementTypeEnum::IfcTransportElementTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTransportElementTypeEnum::IfcTransportElementTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTransportElementTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcTransportElementTypeEnum::IfcTransportElementTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTransportElementTypeEnum::Value Ifc2x3::IfcTransportElementTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcTransportElementTypeEnum::Value) Ifc2x3::IfcTransportElementTypeEnum::IfcTransportElementTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTransportElementTypeEnum::operator Ifc2x3::IfcTransportElementTypeEnum::Value() const {
    return (Ifc2x3::IfcTransportElementTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTrimmingPreference::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[926]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTrimmingPreference::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[926]); }

/*
Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTrimmingPreference::ToString(Value v) {
    return Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTrimmingPreference::Value Ifc2x3::IfcTrimmingPreference::FromString(const std::string& s) {
    return (Ifc2x3::IfcTrimmingPreference::Value) Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTrimmingPreference::operator Ifc2x3::IfcTrimmingPreference::Value() const {
    return (Ifc2x3::IfcTrimmingPreference::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcTubeBundleTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[930]); }
const IfcParse::enumeration_type& Ifc2x3::IfcTubeBundleTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[930]); }

/*
Ifc2x3::IfcTubeBundleTypeEnum::IfcTubeBundleTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcTubeBundleTypeEnum::IfcTubeBundleTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcTubeBundleTypeEnum::IfcTubeBundleTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcTubeBundleTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcTubeBundleTypeEnum::IfcTubeBundleTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcTubeBundleTypeEnum::Value Ifc2x3::IfcTubeBundleTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcTubeBundleTypeEnum::Value) Ifc2x3::IfcTubeBundleTypeEnum::IfcTubeBundleTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcTubeBundleTypeEnum::operator Ifc2x3::IfcTubeBundleTypeEnum::Value() const {
    return (Ifc2x3::IfcTubeBundleTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcUnitEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[938]); }
const IfcParse::enumeration_type& Ifc2x3::IfcUnitEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[938]); }

/*
Ifc2x3::IfcUnitEnum::IfcUnitEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcUnitEnum::IfcUnitEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcUnitEnum::IfcUnitEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcUnitEnum::ToString(Value v) {
    return Ifc2x3::IfcUnitEnum::IfcUnitEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcUnitEnum::Value Ifc2x3::IfcUnitEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcUnitEnum::Value) Ifc2x3::IfcUnitEnum::IfcUnitEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcUnitEnum::operator Ifc2x3::IfcUnitEnum::Value() const {
    return (Ifc2x3::IfcUnitEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcUnitaryEquipmentTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[936]); }
const IfcParse::enumeration_type& Ifc2x3::IfcUnitaryEquipmentTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[936]); }

/*
Ifc2x3::IfcUnitaryEquipmentTypeEnum::IfcUnitaryEquipmentTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcUnitaryEquipmentTypeEnum::IfcUnitaryEquipmentTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcUnitaryEquipmentTypeEnum::IfcUnitaryEquipmentTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcUnitaryEquipmentTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcUnitaryEquipmentTypeEnum::IfcUnitaryEquipmentTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcUnitaryEquipmentTypeEnum::Value Ifc2x3::IfcUnitaryEquipmentTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcUnitaryEquipmentTypeEnum::Value) Ifc2x3::IfcUnitaryEquipmentTypeEnum::IfcUnitaryEquipmentTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcUnitaryEquipmentTypeEnum::operator Ifc2x3::IfcUnitaryEquipmentTypeEnum::Value() const {
    return (Ifc2x3::IfcUnitaryEquipmentTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcValveTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[942]); }
const IfcParse::enumeration_type& Ifc2x3::IfcValveTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[942]); }

/*
Ifc2x3::IfcValveTypeEnum::IfcValveTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcValveTypeEnum::IfcValveTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcValveTypeEnum::IfcValveTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcValveTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcValveTypeEnum::IfcValveTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcValveTypeEnum::Value Ifc2x3::IfcValveTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcValveTypeEnum::Value) Ifc2x3::IfcValveTypeEnum::IfcValveTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcValveTypeEnum::operator Ifc2x3::IfcValveTypeEnum::Value() const {
    return (Ifc2x3::IfcValveTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcVibrationIsolatorTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[951]); }
const IfcParse::enumeration_type& Ifc2x3::IfcVibrationIsolatorTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[951]); }

/*
Ifc2x3::IfcVibrationIsolatorTypeEnum::IfcVibrationIsolatorTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcVibrationIsolatorTypeEnum::IfcVibrationIsolatorTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcVibrationIsolatorTypeEnum::IfcVibrationIsolatorTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcVibrationIsolatorTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcVibrationIsolatorTypeEnum::IfcVibrationIsolatorTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcVibrationIsolatorTypeEnum::Value Ifc2x3::IfcVibrationIsolatorTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcVibrationIsolatorTypeEnum::Value) Ifc2x3::IfcVibrationIsolatorTypeEnum::IfcVibrationIsolatorTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcVibrationIsolatorTypeEnum::operator Ifc2x3::IfcVibrationIsolatorTypeEnum::Value() const {
    return (Ifc2x3::IfcVibrationIsolatorTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcWallTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[959]); }
const IfcParse::enumeration_type& Ifc2x3::IfcWallTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[959]); }

/*
Ifc2x3::IfcWallTypeEnum::IfcWallTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcWallTypeEnum::IfcWallTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcWallTypeEnum::IfcWallTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcWallTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcWallTypeEnum::IfcWallTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcWallTypeEnum::Value Ifc2x3::IfcWallTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcWallTypeEnum::Value) Ifc2x3::IfcWallTypeEnum::IfcWallTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcWallTypeEnum::operator Ifc2x3::IfcWallTypeEnum::Value() const {
    return (Ifc2x3::IfcWallTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcWasteTerminalTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[963]); }
const IfcParse::enumeration_type& Ifc2x3::IfcWasteTerminalTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[963]); }

/*
Ifc2x3::IfcWasteTerminalTypeEnum::IfcWasteTerminalTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcWasteTerminalTypeEnum::IfcWasteTerminalTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcWasteTerminalTypeEnum::IfcWasteTerminalTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcWasteTerminalTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcWasteTerminalTypeEnum::IfcWasteTerminalTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcWasteTerminalTypeEnum::Value Ifc2x3::IfcWasteTerminalTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcWasteTerminalTypeEnum::Value) Ifc2x3::IfcWasteTerminalTypeEnum::IfcWasteTerminalTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcWasteTerminalTypeEnum::operator Ifc2x3::IfcWasteTerminalTypeEnum::Value() const {
    return (Ifc2x3::IfcWasteTerminalTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcWindowPanelOperationEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[967]); }
const IfcParse::enumeration_type& Ifc2x3::IfcWindowPanelOperationEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[967]); }

/*
Ifc2x3::IfcWindowPanelOperationEnum::IfcWindowPanelOperationEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcWindowPanelOperationEnum::IfcWindowPanelOperationEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcWindowPanelOperationEnum::IfcWindowPanelOperationEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcWindowPanelOperationEnum::ToString(Value v) {
    return Ifc2x3::IfcWindowPanelOperationEnum::IfcWindowPanelOperationEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcWindowPanelOperationEnum::Value Ifc2x3::IfcWindowPanelOperationEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcWindowPanelOperationEnum::Value) Ifc2x3::IfcWindowPanelOperationEnum::IfcWindowPanelOperationEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcWindowPanelOperationEnum::operator Ifc2x3::IfcWindowPanelOperationEnum::Value() const {
    return (Ifc2x3::IfcWindowPanelOperationEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcWindowPanelPositionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[968]); }
const IfcParse::enumeration_type& Ifc2x3::IfcWindowPanelPositionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[968]); }

/*
Ifc2x3::IfcWindowPanelPositionEnum::IfcWindowPanelPositionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcWindowPanelPositionEnum::IfcWindowPanelPositionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcWindowPanelPositionEnum::IfcWindowPanelPositionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcWindowPanelPositionEnum::ToString(Value v) {
    return Ifc2x3::IfcWindowPanelPositionEnum::IfcWindowPanelPositionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcWindowPanelPositionEnum::Value Ifc2x3::IfcWindowPanelPositionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcWindowPanelPositionEnum::Value) Ifc2x3::IfcWindowPanelPositionEnum::IfcWindowPanelPositionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcWindowPanelPositionEnum::operator Ifc2x3::IfcWindowPanelPositionEnum::Value() const {
    return (Ifc2x3::IfcWindowPanelPositionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcWindowStyleConstructionEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[971]); }
const IfcParse::enumeration_type& Ifc2x3::IfcWindowStyleConstructionEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[971]); }

/*
Ifc2x3::IfcWindowStyleConstructionEnum::IfcWindowStyleConstructionEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcWindowStyleConstructionEnum::IfcWindowStyleConstructionEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcWindowStyleConstructionEnum::IfcWindowStyleConstructionEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcWindowStyleConstructionEnum::ToString(Value v) {
    return Ifc2x3::IfcWindowStyleConstructionEnum::IfcWindowStyleConstructionEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcWindowStyleConstructionEnum::Value Ifc2x3::IfcWindowStyleConstructionEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcWindowStyleConstructionEnum::Value) Ifc2x3::IfcWindowStyleConstructionEnum::IfcWindowStyleConstructionEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcWindowStyleConstructionEnum::operator Ifc2x3::IfcWindowStyleConstructionEnum::Value() const {
    return (Ifc2x3::IfcWindowStyleConstructionEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcWindowStyleOperationEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[972]); }
const IfcParse::enumeration_type& Ifc2x3::IfcWindowStyleOperationEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[972]); }

/*
Ifc2x3::IfcWindowStyleOperationEnum::IfcWindowStyleOperationEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcWindowStyleOperationEnum::IfcWindowStyleOperationEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcWindowStyleOperationEnum::IfcWindowStyleOperationEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcWindowStyleOperationEnum::ToString(Value v) {
    return Ifc2x3::IfcWindowStyleOperationEnum::IfcWindowStyleOperationEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcWindowStyleOperationEnum::Value Ifc2x3::IfcWindowStyleOperationEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcWindowStyleOperationEnum::Value) Ifc2x3::IfcWindowStyleOperationEnum::IfcWindowStyleOperationEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcWindowStyleOperationEnum::operator Ifc2x3::IfcWindowStyleOperationEnum::Value() const {
    return (Ifc2x3::IfcWindowStyleOperationEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

// const IfcParse::enumeration_type& Ifc2x3::IfcWorkControlTypeEnum::declaration() const { return *((IfcParse::enumeration_type*)IFC2X3_types[974]); }
const IfcParse::enumeration_type& Ifc2x3::IfcWorkControlTypeEnum::Class() { return *((IfcParse::enumeration_type*)IFC2X3_types[974]); }

/*
Ifc2x3::IfcWorkControlTypeEnum::IfcWorkControlTypeEnum(const std::weak_ptr<InstanceData>& e)
    : express::DeclaredType(e)
{}

Ifc2x3::IfcWorkControlTypeEnum::IfcWorkControlTypeEnum(Value v) {
    set_attribute_value(0, EnumerationReference(&Class(), static_cast<size_t>(v)));
}

Ifc2x3::IfcWorkControlTypeEnum::IfcWorkControlTypeEnum(const std::string& v) {
    set_attribute_value(0, EnumerationReference(&Class(), Class().lookup_enum_offset(v)));
}
*/

const char* Ifc2x3::IfcWorkControlTypeEnum::ToString(Value v) {
    return Ifc2x3::IfcWorkControlTypeEnum::IfcWorkControlTypeEnum::Class().lookup_enum_value((size_t)v);
}

Ifc2x3::IfcWorkControlTypeEnum::Value Ifc2x3::IfcWorkControlTypeEnum::FromString(const std::string& s) {
    return (Ifc2x3::IfcWorkControlTypeEnum::Value) Ifc2x3::IfcWorkControlTypeEnum::IfcWorkControlTypeEnum::Class().lookup_enum_offset(s);
}

Ifc2x3::IfcWorkControlTypeEnum::operator Ifc2x3::IfcWorkControlTypeEnum::Value() const {
    return (Ifc2x3::IfcWorkControlTypeEnum::Value) ((EnumerationReference) get_attribute_value(0)).index();
}

const IfcParse::select_type& Ifc2x3::IfcActorSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[8]); }

const IfcParse::select_type& Ifc2x3::IfcAppliedValueSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[39]); }

const IfcParse::select_type& Ifc2x3::IfcAxis2Placement::Class() { return *((IfcParse::select_type*)IFC2X3_types[53]); }

const IfcParse::select_type& Ifc2x3::IfcBooleanOperand::Class() { return *((IfcParse::select_type*)IFC2X3_types[67]); }

const IfcParse::select_type& Ifc2x3::IfcCharacterStyleSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[107]); }

const IfcParse::select_type& Ifc2x3::IfcClassificationNotationSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[118]); }

const IfcParse::select_type& Ifc2x3::IfcColour::Class() { return *((IfcParse::select_type*)IFC2X3_types[123]); }

const IfcParse::select_type& Ifc2x3::IfcColourOrFactor::Class() { return *((IfcParse::select_type*)IFC2X3_types[124]); }

const IfcParse::select_type& Ifc2x3::IfcConditionCriterionSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[142]); }

const IfcParse::select_type& Ifc2x3::IfcCsgSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[184]); }

const IfcParse::select_type& Ifc2x3::IfcCurveFontOrScaledCurveFontSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[195]); }

const IfcParse::select_type& Ifc2x3::IfcCurveOrEdgeCurve::Class() { return *((IfcParse::select_type*)IFC2X3_types[196]); }

const IfcParse::select_type& Ifc2x3::IfcCurveStyleFontSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[201]); }

const IfcParse::select_type& Ifc2x3::IfcDateTimeSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[206]); }

const IfcParse::select_type& Ifc2x3::IfcDefinedSymbolSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[210]); }

const IfcParse::select_type& Ifc2x3::IfcDerivedMeasureValue::Class() { return *((IfcParse::select_type*)IFC2X3_types[211]); }

const IfcParse::select_type& Ifc2x3::IfcDocumentSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[245]); }

const IfcParse::select_type& Ifc2x3::IfcDraughtingCalloutElement::Class() { return *((IfcParse::select_type*)IFC2X3_types[257]); }

const IfcParse::select_type& Ifc2x3::IfcFillAreaStyleTileShapeSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[346]); }

const IfcParse::select_type& Ifc2x3::IfcFillStyleSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[348]); }

const IfcParse::select_type& Ifc2x3::IfcGeometricSetSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[395]); }

const IfcParse::select_type& Ifc2x3::IfcHatchLineDistanceSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[403]); }

const IfcParse::select_type& Ifc2x3::IfcLayeredItem::Class() { return *((IfcParse::select_type*)IFC2X3_types[433]); }

const IfcParse::select_type& Ifc2x3::IfcLibrarySelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[438]); }

const IfcParse::select_type& Ifc2x3::IfcLightDistributionDataSourceSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[441]); }

const IfcParse::select_type& Ifc2x3::IfcMaterialSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[484]); }

const IfcParse::select_type& Ifc2x3::IfcMeasureValue::Class() { return *((IfcParse::select_type*)IFC2X3_types[485]); }

const IfcParse::select_type& Ifc2x3::IfcMetricValueSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[496]); }

const IfcParse::select_type& Ifc2x3::IfcObjectReferenceSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[520]); }

const IfcParse::select_type& Ifc2x3::IfcOrientationSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[533]); }

const IfcParse::select_type& Ifc2x3::IfcPointOrVertexPoint::Class() { return *((IfcParse::select_type*)IFC2X3_types[572]); }

const IfcParse::select_type& Ifc2x3::IfcPresentationStyleSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[595]); }

const IfcParse::select_type& Ifc2x3::IfcShell::Class() { return *((IfcParse::select_type*)IFC2X3_types[759]); }

const IfcParse::select_type& Ifc2x3::IfcSimpleValue::Class() { return *((IfcParse::select_type*)IFC2X3_types[762]); }

const IfcParse::select_type& Ifc2x3::IfcSizeSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[767]); }

const IfcParse::select_type& Ifc2x3::IfcSpecularHighlightSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[790]); }

const IfcParse::select_type& Ifc2x3::IfcStructuralActivityAssignmentSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[803]); }

const IfcParse::select_type& Ifc2x3::IfcSurfaceOrFaceSurface::Class() { return *((IfcParse::select_type*)IFC2X3_types[848]); }

const IfcParse::select_type& Ifc2x3::IfcSurfaceStyleElementSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[851]); }

const IfcParse::select_type& Ifc2x3::IfcSymbolStyleSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[865]); }

const IfcParse::select_type& Ifc2x3::IfcTextFontSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[883]); }

const IfcParse::select_type& Ifc2x3::IfcTextStyleSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[890]); }

const IfcParse::select_type& Ifc2x3::IfcTrimmingSelect::Class() { return *((IfcParse::select_type*)IFC2X3_types[927]); }

const IfcParse::select_type& Ifc2x3::IfcUnit::Class() { return *((IfcParse::select_type*)IFC2X3_types[934]); }

const IfcParse::select_type& Ifc2x3::IfcValue::Class() { return *((IfcParse::select_type*)IFC2X3_types[940]); }

const IfcParse::select_type& Ifc2x3::IfcVectorOrDirection::Class() { return *((IfcParse::select_type*)IFC2X3_types[945]); }


// Function implementations for IfcAbsorbedDoseMeasure
const IfcParse::type_declaration& Ifc2x3::IfcAbsorbedDoseMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[1]); }
Ifc2x3::IfcAbsorbedDoseMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcAccelerationMeasure
const IfcParse::type_declaration& Ifc2x3::IfcAccelerationMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[2]); }
Ifc2x3::IfcAccelerationMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcAmountOfSubstanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcAmountOfSubstanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[22]); }
Ifc2x3::IfcAmountOfSubstanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcAngularVelocityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcAngularVelocityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[26]); }
Ifc2x3::IfcAngularVelocityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcAreaMeasure
const IfcParse::type_declaration& Ifc2x3::IfcAreaMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[47]); }
Ifc2x3::IfcAreaMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcBoolean
const IfcParse::type_declaration& Ifc2x3::IfcBoolean::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[65]); }
Ifc2x3::IfcBoolean::operator bool() const { return get_attribute_value(0); }

// Function implementations for IfcBoxAlignment
const IfcParse::type_declaration& Ifc2x3::IfcBoxAlignment::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[78]); }
Ifc2x3::IfcBoxAlignment::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcComplexNumber
const IfcParse::type_declaration& Ifc2x3::IfcComplexNumber::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[130]); }
Ifc2x3::IfcComplexNumber::operator std::vector< double > /*[1:2]*/() const { return get_attribute_value(0); }

// Function implementations for IfcCompoundPlaneAngleMeasure
const IfcParse::type_declaration& Ifc2x3::IfcCompoundPlaneAngleMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[135]); }
Ifc2x3::IfcCompoundPlaneAngleMeasure::operator std::vector< int > /*[3:4]*/() const { return get_attribute_value(0); }

// Function implementations for IfcContextDependentMeasure
const IfcParse::type_declaration& Ifc2x3::IfcContextDependentMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[161]); }
Ifc2x3::IfcContextDependentMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcCountMeasure
const IfcParse::type_declaration& Ifc2x3::IfcCountMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[176]); }
Ifc2x3::IfcCountMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcCurvatureMeasure
const IfcParse::type_declaration& Ifc2x3::IfcCurvatureMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[192]); }
Ifc2x3::IfcCurvatureMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcDayInMonthNumber
const IfcParse::type_declaration& Ifc2x3::IfcDayInMonthNumber::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[207]); }
Ifc2x3::IfcDayInMonthNumber::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcDaylightSavingHour
const IfcParse::type_declaration& Ifc2x3::IfcDaylightSavingHour::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[208]); }
Ifc2x3::IfcDaylightSavingHour::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcDescriptiveMeasure
const IfcParse::type_declaration& Ifc2x3::IfcDescriptiveMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[216]); }
Ifc2x3::IfcDescriptiveMeasure::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcDimensionCount
const IfcParse::type_declaration& Ifc2x3::IfcDimensionCount::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[220]); }
Ifc2x3::IfcDimensionCount::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcDoseEquivalentMeasure
const IfcParse::type_declaration& Ifc2x3::IfcDoseEquivalentMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[255]); }
Ifc2x3::IfcDoseEquivalentMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcDynamicViscosityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcDynamicViscosityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[268]); }
Ifc2x3::IfcDynamicViscosityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcElectricCapacitanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcElectricCapacitanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[278]); }
Ifc2x3::IfcElectricCapacitanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcElectricChargeMeasure
const IfcParse::type_declaration& Ifc2x3::IfcElectricChargeMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[279]); }
Ifc2x3::IfcElectricChargeMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcElectricConductanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcElectricConductanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[280]); }
Ifc2x3::IfcElectricConductanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcElectricCurrentMeasure
const IfcParse::type_declaration& Ifc2x3::IfcElectricCurrentMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[282]); }
Ifc2x3::IfcElectricCurrentMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcElectricResistanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcElectricResistanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[293]); }
Ifc2x3::IfcElectricResistanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcElectricVoltageMeasure
const IfcParse::type_declaration& Ifc2x3::IfcElectricVoltageMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[296]); }
Ifc2x3::IfcElectricVoltageMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcEnergyMeasure
const IfcParse::type_declaration& Ifc2x3::IfcEnergyMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[310]); }
Ifc2x3::IfcEnergyMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcFontStyle
const IfcParse::type_declaration& Ifc2x3::IfcFontStyle::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[373]); }
Ifc2x3::IfcFontStyle::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcFontVariant
const IfcParse::type_declaration& Ifc2x3::IfcFontVariant::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[374]); }
Ifc2x3::IfcFontVariant::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcFontWeight
const IfcParse::type_declaration& Ifc2x3::IfcFontWeight::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[375]); }
Ifc2x3::IfcFontWeight::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcForceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcForceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[378]); }
Ifc2x3::IfcForceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcFrequencyMeasure
const IfcParse::type_declaration& Ifc2x3::IfcFrequencyMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[379]); }
Ifc2x3::IfcFrequencyMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcGloballyUniqueId
const IfcParse::type_declaration& Ifc2x3::IfcGloballyUniqueId::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[396]); }
Ifc2x3::IfcGloballyUniqueId::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcHeatFluxDensityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcHeatFluxDensityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[406]); }
Ifc2x3::IfcHeatFluxDensityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcHeatingValueMeasure
const IfcParse::type_declaration& Ifc2x3::IfcHeatingValueMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[407]); }
Ifc2x3::IfcHeatingValueMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcHourInDay
const IfcParse::type_declaration& Ifc2x3::IfcHourInDay::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[408]); }
Ifc2x3::IfcHourInDay::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcIdentifier
const IfcParse::type_declaration& Ifc2x3::IfcIdentifier::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[412]); }
Ifc2x3::IfcIdentifier::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcIlluminanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcIlluminanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[413]); }
Ifc2x3::IfcIlluminanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcInductanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcInductanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[415]); }
Ifc2x3::IfcInductanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcInteger
const IfcParse::type_declaration& Ifc2x3::IfcInteger::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[416]); }
Ifc2x3::IfcInteger::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcIntegerCountRateMeasure
const IfcParse::type_declaration& Ifc2x3::IfcIntegerCountRateMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[417]); }
Ifc2x3::IfcIntegerCountRateMeasure::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcIonConcentrationMeasure
const IfcParse::type_declaration& Ifc2x3::IfcIonConcentrationMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[421]); }
Ifc2x3::IfcIonConcentrationMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcIsothermalMoistureCapacityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcIsothermalMoistureCapacityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[425]); }
Ifc2x3::IfcIsothermalMoistureCapacityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcKinematicViscosityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcKinematicViscosityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[428]); }
Ifc2x3::IfcKinematicViscosityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLabel
const IfcParse::type_declaration& Ifc2x3::IfcLabel::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[429]); }
Ifc2x3::IfcLabel::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcLengthMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLengthMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[435]); }
Ifc2x3::IfcLengthMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLinearForceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLinearForceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[454]); }
Ifc2x3::IfcLinearForceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLinearMomentMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLinearMomentMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[455]); }
Ifc2x3::IfcLinearMomentMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLinearStiffnessMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLinearStiffnessMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[456]); }
Ifc2x3::IfcLinearStiffnessMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLinearVelocityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLinearVelocityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[457]); }
Ifc2x3::IfcLinearVelocityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLogical
const IfcParse::type_declaration& Ifc2x3::IfcLogical::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[461]); }
Ifc2x3::IfcLogical::operator boost::logic::tribool() const { return get_attribute_value(0); }

// Function implementations for IfcLuminousFluxMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLuminousFluxMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[465]); }
Ifc2x3::IfcLuminousFluxMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLuminousIntensityDistributionMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLuminousIntensityDistributionMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[466]); }
Ifc2x3::IfcLuminousIntensityDistributionMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcLuminousIntensityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcLuminousIntensityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[467]); }
Ifc2x3::IfcLuminousIntensityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMagneticFluxDensityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMagneticFluxDensityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[468]); }
Ifc2x3::IfcMagneticFluxDensityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMagneticFluxMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMagneticFluxMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[469]); }
Ifc2x3::IfcMagneticFluxMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMassDensityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMassDensityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[472]); }
Ifc2x3::IfcMassDensityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMassFlowRateMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMassFlowRateMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[473]); }
Ifc2x3::IfcMassFlowRateMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMassMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMassMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[474]); }
Ifc2x3::IfcMassMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMassPerLengthMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMassPerLengthMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[475]); }
Ifc2x3::IfcMassPerLengthMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMinuteInHour
const IfcParse::type_declaration& Ifc2x3::IfcMinuteInHour::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[497]); }
Ifc2x3::IfcMinuteInHour::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcModulusOfElasticityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcModulusOfElasticityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[498]); }
Ifc2x3::IfcModulusOfElasticityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcModulusOfLinearSubgradeReactionMeasure
const IfcParse::type_declaration& Ifc2x3::IfcModulusOfLinearSubgradeReactionMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[499]); }
Ifc2x3::IfcModulusOfLinearSubgradeReactionMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcModulusOfRotationalSubgradeReactionMeasure
const IfcParse::type_declaration& Ifc2x3::IfcModulusOfRotationalSubgradeReactionMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[500]); }
Ifc2x3::IfcModulusOfRotationalSubgradeReactionMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcModulusOfSubgradeReactionMeasure
const IfcParse::type_declaration& Ifc2x3::IfcModulusOfSubgradeReactionMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[501]); }
Ifc2x3::IfcModulusOfSubgradeReactionMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMoistureDiffusivityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMoistureDiffusivityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[502]); }
Ifc2x3::IfcMoistureDiffusivityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMolecularWeightMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMolecularWeightMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[503]); }
Ifc2x3::IfcMolecularWeightMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMomentOfInertiaMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMomentOfInertiaMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[504]); }
Ifc2x3::IfcMomentOfInertiaMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMonetaryMeasure
const IfcParse::type_declaration& Ifc2x3::IfcMonetaryMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[505]); }
Ifc2x3::IfcMonetaryMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcMonthInYearNumber
const IfcParse::type_declaration& Ifc2x3::IfcMonthInYearNumber::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[507]); }
Ifc2x3::IfcMonthInYearNumber::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcNormalisedRatioMeasure
const IfcParse::type_declaration& Ifc2x3::IfcNormalisedRatioMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[512]); }
Ifc2x3::IfcNormalisedRatioMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcNumericMeasure
const IfcParse::type_declaration& Ifc2x3::IfcNumericMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[514]); }
Ifc2x3::IfcNumericMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPHMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPHMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[547]); }
Ifc2x3::IfcPHMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcParameterValue
const IfcParse::type_declaration& Ifc2x3::IfcParameterValue::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[539]); }
Ifc2x3::IfcParameterValue::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPlanarForceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPlanarForceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[563]); }
Ifc2x3::IfcPlanarForceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPlaneAngleMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPlaneAngleMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[565]); }
Ifc2x3::IfcPlaneAngleMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPositiveLengthMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPositiveLengthMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[577]); }
Ifc2x3::IfcPositiveLengthMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPositivePlaneAngleMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPositivePlaneAngleMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[578]); }
Ifc2x3::IfcPositivePlaneAngleMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPositiveRatioMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPositiveRatioMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[579]); }
Ifc2x3::IfcPositiveRatioMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPowerMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPowerMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[581]); }
Ifc2x3::IfcPowerMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcPresentableText
const IfcParse::type_declaration& Ifc2x3::IfcPresentableText::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[590]); }
Ifc2x3::IfcPresentableText::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcPressureMeasure
const IfcParse::type_declaration& Ifc2x3::IfcPressureMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[596]); }
Ifc2x3::IfcPressureMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcRadioActivityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcRadioActivityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[640]); }
Ifc2x3::IfcRadioActivityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcRatioMeasure
const IfcParse::type_declaration& Ifc2x3::IfcRatioMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[650]); }
Ifc2x3::IfcRatioMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcReal
const IfcParse::type_declaration& Ifc2x3::IfcReal::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[652]); }
Ifc2x3::IfcReal::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcRotationalFrequencyMeasure
const IfcParse::type_declaration& Ifc2x3::IfcRotationalFrequencyMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[733]); }
Ifc2x3::IfcRotationalFrequencyMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcRotationalMassMeasure
const IfcParse::type_declaration& Ifc2x3::IfcRotationalMassMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[734]); }
Ifc2x3::IfcRotationalMassMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcRotationalStiffnessMeasure
const IfcParse::type_declaration& Ifc2x3::IfcRotationalStiffnessMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[735]); }
Ifc2x3::IfcRotationalStiffnessMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSecondInMinute
const IfcParse::type_declaration& Ifc2x3::IfcSecondInMinute::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[741]); }
Ifc2x3::IfcSecondInMinute::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSectionModulusMeasure
const IfcParse::type_declaration& Ifc2x3::IfcSectionModulusMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[744]); }
Ifc2x3::IfcSectionModulusMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSectionalAreaIntegralMeasure
const IfcParse::type_declaration& Ifc2x3::IfcSectionalAreaIntegralMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[742]); }
Ifc2x3::IfcSectionalAreaIntegralMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcShearModulusMeasure
const IfcParse::type_declaration& Ifc2x3::IfcShearModulusMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[758]); }
Ifc2x3::IfcShearModulusMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSolidAngleMeasure
const IfcParse::type_declaration& Ifc2x3::IfcSolidAngleMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[772]); }
Ifc2x3::IfcSolidAngleMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSoundPowerMeasure
const IfcParse::type_declaration& Ifc2x3::IfcSoundPowerMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[774]); }
Ifc2x3::IfcSoundPowerMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSoundPressureMeasure
const IfcParse::type_declaration& Ifc2x3::IfcSoundPressureMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[775]); }
Ifc2x3::IfcSoundPressureMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSpecificHeatCapacityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcSpecificHeatCapacityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[788]); }
Ifc2x3::IfcSpecificHeatCapacityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSpecularExponent
const IfcParse::type_declaration& Ifc2x3::IfcSpecularExponent::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[789]); }
Ifc2x3::IfcSpecularExponent::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcSpecularRoughness
const IfcParse::type_declaration& Ifc2x3::IfcSpecularRoughness::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[791]); }
Ifc2x3::IfcSpecularRoughness::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcTemperatureGradientMeasure
const IfcParse::type_declaration& Ifc2x3::IfcTemperatureGradientMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[874]); }
Ifc2x3::IfcTemperatureGradientMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcText
const IfcParse::type_declaration& Ifc2x3::IfcText::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[879]); }
Ifc2x3::IfcText::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcTextAlignment
const IfcParse::type_declaration& Ifc2x3::IfcTextAlignment::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[880]); }
Ifc2x3::IfcTextAlignment::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcTextDecoration
const IfcParse::type_declaration& Ifc2x3::IfcTextDecoration::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[881]); }
Ifc2x3::IfcTextDecoration::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcTextFontName
const IfcParse::type_declaration& Ifc2x3::IfcTextFontName::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[882]); }
Ifc2x3::IfcTextFontName::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcTextTransformation
const IfcParse::type_declaration& Ifc2x3::IfcTextTransformation::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[893]); }
Ifc2x3::IfcTextTransformation::operator std::string() const { return get_attribute_value(0); }

// Function implementations for IfcThermalAdmittanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcThermalAdmittanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[898]); }
Ifc2x3::IfcThermalAdmittanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcThermalConductivityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcThermalConductivityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[899]); }
Ifc2x3::IfcThermalConductivityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcThermalExpansionCoefficientMeasure
const IfcParse::type_declaration& Ifc2x3::IfcThermalExpansionCoefficientMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[900]); }
Ifc2x3::IfcThermalExpansionCoefficientMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcThermalResistanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcThermalResistanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[904]); }
Ifc2x3::IfcThermalResistanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcThermalTransmittanceMeasure
const IfcParse::type_declaration& Ifc2x3::IfcThermalTransmittanceMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[905]); }
Ifc2x3::IfcThermalTransmittanceMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcThermodynamicTemperatureMeasure
const IfcParse::type_declaration& Ifc2x3::IfcThermodynamicTemperatureMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[906]); }
Ifc2x3::IfcThermodynamicTemperatureMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcTimeMeasure
const IfcParse::type_declaration& Ifc2x3::IfcTimeMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[907]); }
Ifc2x3::IfcTimeMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcTimeStamp
const IfcParse::type_declaration& Ifc2x3::IfcTimeStamp::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[914]); }
Ifc2x3::IfcTimeStamp::operator int() const { return get_attribute_value(0); }

// Function implementations for IfcTorqueMeasure
const IfcParse::type_declaration& Ifc2x3::IfcTorqueMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[917]); }
Ifc2x3::IfcTorqueMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcVaporPermeabilityMeasure
const IfcParse::type_declaration& Ifc2x3::IfcVaporPermeabilityMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[943]); }
Ifc2x3::IfcVaporPermeabilityMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcVolumeMeasure
const IfcParse::type_declaration& Ifc2x3::IfcVolumeMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[954]); }
Ifc2x3::IfcVolumeMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcVolumetricFlowRateMeasure
const IfcParse::type_declaration& Ifc2x3::IfcVolumetricFlowRateMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[955]); }
Ifc2x3::IfcVolumetricFlowRateMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcWarpingConstantMeasure
const IfcParse::type_declaration& Ifc2x3::IfcWarpingConstantMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[960]); }
Ifc2x3::IfcWarpingConstantMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcWarpingMomentMeasure
const IfcParse::type_declaration& Ifc2x3::IfcWarpingMomentMeasure::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[961]); }
Ifc2x3::IfcWarpingMomentMeasure::operator double() const { return get_attribute_value(0); }

// Function implementations for IfcYearNumber
const IfcParse::type_declaration& Ifc2x3::IfcYearNumber::Class() { return *((IfcParse::type_declaration*)IFC2X3_types[977]); }
Ifc2x3::IfcYearNumber::operator int() const { return get_attribute_value(0); }


// Function implementations for Ifc2DCompositeCurve


// const IfcParse::entity& Ifc2x3::Ifc2DCompositeCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[0]); }
const IfcParse::entity& Ifc2x3::Ifc2DCompositeCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[0]); }
// Ifc2x3::Ifc2DCompositeCurve::Ifc2DCompositeCurve(const std::weak_ptr<InstanceData>& e) : IfcCompositeCurve(e) { }
// Ifc2x3::Ifc2DCompositeCurve::Ifc2DCompositeCurve(std::vector< ::Ifc2x3::IfcCompositeCurveSegment > v1_Segments, boost::logic::tribool v2_SelfIntersect) : IfcCompositeCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Segments)->generalize());set_attribute_value(1, (v2_SelfIntersect));; populate_derived(); }

// Function implementations for IfcActionRequest
std::string Ifc2x3::IfcActionRequest::RequestID() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcActionRequest::setRequestID(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcActionRequest::declaration() const { return *((IfcParse::entity*)IFC2X3_types[3]); }
const IfcParse::entity& Ifc2x3::IfcActionRequest::Class() { return *((IfcParse::entity*)IFC2X3_types[3]); }
// Ifc2x3::IfcActionRequest::IfcActionRequest(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcActionRequest::IfcActionRequest(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_RequestID) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_RequestID));; populate_derived(); }

// Function implementations for IfcActor
::Ifc2x3::IfcActorSelect Ifc2x3::IfcActor::TheActor() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcActor::setTheActor(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }

std::vector<::Ifc2x3::IfcRelAssignsToActor> Ifc2x3::IfcActor::IsActingUpon() const { return cast_vector<IfcRelAssignsToActor>(file()->getInverse(data()->id(), IFC2X3_types[670], 6)); }

// const IfcParse::entity& Ifc2x3::IfcActor::declaration() const { return *((IfcParse::entity*)IFC2X3_types[6]); }
const IfcParse::entity& Ifc2x3::IfcActor::Class() { return *((IfcParse::entity*)IFC2X3_types[6]); }
// Ifc2x3::IfcActor::IfcActor(const std::weak_ptr<InstanceData>& e) : IfcObject(e) { }
// Ifc2x3::IfcActor::IfcActor(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcActorSelect v6_TheActor) : IfcObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_TheActor));; populate_derived(); }

// Function implementations for IfcActorRole
::Ifc2x3::IfcRoleEnum::Value Ifc2x3::IfcActorRole::Role() const {  return ::Ifc2x3::IfcRoleEnum::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcActorRole::setRole(const ::Ifc2x3::IfcRoleEnum::Value& v) { set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcRoleEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcActorRole::UserDefinedRole() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcActorRole::setUserDefinedRole(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcActorRole::Description() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcActorRole::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }


// const IfcParse::entity& Ifc2x3::IfcActorRole::declaration() const { return *((IfcParse::entity*)IFC2X3_types[7]); }
const IfcParse::entity& Ifc2x3::IfcActorRole::Class() { return *((IfcParse::entity*)IFC2X3_types[7]); }
// Ifc2x3::IfcActorRole::IfcActorRole(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcActorRole::IfcActorRole(::Ifc2x3::IfcRoleEnum::Value v1_Role, std::optional< std::string > v2_UserDefinedRole, std::optional< std::string > v3_Description) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcRoleEnum::Class(),(size_t)v1_Role))); if (v2_UserDefinedRole) {set_attribute_value(1, (*v2_UserDefinedRole)); } if (v3_Description) {set_attribute_value(2, (*v3_Description)); }; populate_derived(); }

// Function implementations for IfcActuatorType
::Ifc2x3::IfcActuatorTypeEnum::Value Ifc2x3::IfcActuatorType::PredefinedType() const {  return ::Ifc2x3::IfcActuatorTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcActuatorType::setPredefinedType(const ::Ifc2x3::IfcActuatorTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcActuatorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcActuatorType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[9]); }
const IfcParse::entity& Ifc2x3::IfcActuatorType::Class() { return *((IfcParse::entity*)IFC2X3_types[9]); }
// Ifc2x3::IfcActuatorType::IfcActuatorType(const std::weak_ptr<InstanceData>& e) : IfcDistributionControlElementType(e) { }
// Ifc2x3::IfcActuatorType::IfcActuatorType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcActuatorTypeEnum::Value v10_PredefinedType) : IfcDistributionControlElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcActuatorTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcAddress
std::optional< ::Ifc2x3::IfcAddressTypeEnum::Value > Ifc2x3::IfcAddress::Purpose() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcAddressTypeEnum::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcAddress::setPurpose(const std::optional< ::Ifc2x3::IfcAddressTypeEnum::Value >& v) { if (v) {set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcAddressTypeEnum::Class(), (size_t) *v));} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcAddress::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcAddress::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcAddress::UserDefinedPurpose() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcAddress::setUserDefinedPurpose(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }

std::vector<::Ifc2x3::IfcPerson> Ifc2x3::IfcAddress::OfPerson() const { return cast_vector<IfcPerson>(file()->getInverse(data()->id(), IFC2X3_types[545], 7)); }
std::vector<::Ifc2x3::IfcOrganization> Ifc2x3::IfcAddress::OfOrganization() const { return cast_vector<IfcOrganization>(file()->getInverse(data()->id(), IFC2X3_types[531], 4)); }

// const IfcParse::entity& Ifc2x3::IfcAddress::declaration() const { return *((IfcParse::entity*)IFC2X3_types[11]); }
const IfcParse::entity& Ifc2x3::IfcAddress::Class() { return *((IfcParse::entity*)IFC2X3_types[11]); }
// Ifc2x3::IfcAddress::IfcAddress(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcAddress::IfcAddress(std::optional< ::Ifc2x3::IfcAddressTypeEnum::Value > v1_Purpose, std::optional< std::string > v2_Description, std::optional< std::string > v3_UserDefinedPurpose) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Purpose) {set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcAddressTypeEnum::Class(),(size_t)*v1_Purpose))); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_UserDefinedPurpose) {set_attribute_value(2, (*v3_UserDefinedPurpose)); }; populate_derived(); }

// Function implementations for IfcAirTerminalBoxType
::Ifc2x3::IfcAirTerminalBoxTypeEnum::Value Ifc2x3::IfcAirTerminalBoxType::PredefinedType() const {  return ::Ifc2x3::IfcAirTerminalBoxTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcAirTerminalBoxType::setPredefinedType(const ::Ifc2x3::IfcAirTerminalBoxTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcAirTerminalBoxTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcAirTerminalBoxType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[14]); }
const IfcParse::entity& Ifc2x3::IfcAirTerminalBoxType::Class() { return *((IfcParse::entity*)IFC2X3_types[14]); }
// Ifc2x3::IfcAirTerminalBoxType::IfcAirTerminalBoxType(const std::weak_ptr<InstanceData>& e) : IfcFlowControllerType(e) { }
// Ifc2x3::IfcAirTerminalBoxType::IfcAirTerminalBoxType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcAirTerminalBoxTypeEnum::Value v10_PredefinedType) : IfcFlowControllerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcAirTerminalBoxTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcAirTerminalType
::Ifc2x3::IfcAirTerminalTypeEnum::Value Ifc2x3::IfcAirTerminalType::PredefinedType() const {  return ::Ifc2x3::IfcAirTerminalTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcAirTerminalType::setPredefinedType(const ::Ifc2x3::IfcAirTerminalTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcAirTerminalTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcAirTerminalType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[16]); }
const IfcParse::entity& Ifc2x3::IfcAirTerminalType::Class() { return *((IfcParse::entity*)IFC2X3_types[16]); }
// Ifc2x3::IfcAirTerminalType::IfcAirTerminalType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcAirTerminalType::IfcAirTerminalType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcAirTerminalTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcAirTerminalTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcAirToAirHeatRecoveryType
::Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Value Ifc2x3::IfcAirToAirHeatRecoveryType::PredefinedType() const {  return ::Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcAirToAirHeatRecoveryType::setPredefinedType(const ::Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcAirToAirHeatRecoveryType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[18]); }
const IfcParse::entity& Ifc2x3::IfcAirToAirHeatRecoveryType::Class() { return *((IfcParse::entity*)IFC2X3_types[18]); }
// Ifc2x3::IfcAirToAirHeatRecoveryType::IfcAirToAirHeatRecoveryType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcAirToAirHeatRecoveryType::IfcAirToAirHeatRecoveryType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcAirToAirHeatRecoveryTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcAlarmType
::Ifc2x3::IfcAlarmTypeEnum::Value Ifc2x3::IfcAlarmType::PredefinedType() const {  return ::Ifc2x3::IfcAlarmTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcAlarmType::setPredefinedType(const ::Ifc2x3::IfcAlarmTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcAlarmTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcAlarmType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[20]); }
const IfcParse::entity& Ifc2x3::IfcAlarmType::Class() { return *((IfcParse::entity*)IFC2X3_types[20]); }
// Ifc2x3::IfcAlarmType::IfcAlarmType(const std::weak_ptr<InstanceData>& e) : IfcDistributionControlElementType(e) { }
// Ifc2x3::IfcAlarmType::IfcAlarmType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcAlarmTypeEnum::Value v10_PredefinedType) : IfcDistributionControlElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcAlarmTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcAngularDimension


// const IfcParse::entity& Ifc2x3::IfcAngularDimension::declaration() const { return *((IfcParse::entity*)IFC2X3_types[25]); }
const IfcParse::entity& Ifc2x3::IfcAngularDimension::Class() { return *((IfcParse::entity*)IFC2X3_types[25]); }
// Ifc2x3::IfcAngularDimension::IfcAngularDimension(const std::weak_ptr<InstanceData>& e) : IfcDimensionCurveDirectedCallout(e) { }
// Ifc2x3::IfcAngularDimension::IfcAngularDimension(std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > v1_Contents) : IfcDimensionCurveDirectedCallout(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Contents)->generalize());; populate_derived(); }

// Function implementations for IfcAnnotation

std::vector<::Ifc2x3::IfcRelContainedInSpatialStructure> Ifc2x3::IfcAnnotation::ContainedInStructure() const { return cast_vector<IfcRelContainedInSpatialStructure>(file()->getInverse(data()->id(), IFC2X3_types[698], 4)); }

// const IfcParse::entity& Ifc2x3::IfcAnnotation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[27]); }
const IfcParse::entity& Ifc2x3::IfcAnnotation::Class() { return *((IfcParse::entity*)IFC2X3_types[27]); }
// Ifc2x3::IfcAnnotation::IfcAnnotation(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcAnnotation::IfcAnnotation(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }; populate_derived(); }

// Function implementations for IfcAnnotationCurveOccurrence


// const IfcParse::entity& Ifc2x3::IfcAnnotationCurveOccurrence::declaration() const { return *((IfcParse::entity*)IFC2X3_types[28]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationCurveOccurrence::Class() { return *((IfcParse::entity*)IFC2X3_types[28]); }
// Ifc2x3::IfcAnnotationCurveOccurrence::IfcAnnotationCurveOccurrence(const std::weak_ptr<InstanceData>& e) : IfcAnnotationOccurrence(e) { }
// Ifc2x3::IfcAnnotationCurveOccurrence::IfcAnnotationCurveOccurrence(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcAnnotationOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcAnnotationFillArea
::Ifc2x3::IfcCurve Ifc2x3::IfcAnnotationFillArea::OuterBoundary() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcAnnotationFillArea::setOuterBoundary(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::vector< ::Ifc2x3::IfcCurve > > Ifc2x3::IfcAnnotationFillArea::InnerBoundaries() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcCurve>(es); }
void Ifc2x3::IfcAnnotationFillArea::setInnerBoundaries(const std::optional< std::vector< ::Ifc2x3::IfcCurve > >& v) { if (v) {set_attribute_value(1, cast_vector<express::Base>(*v));} else {unset_attribute_value(1);} }


// const IfcParse::entity& Ifc2x3::IfcAnnotationFillArea::declaration() const { return *((IfcParse::entity*)IFC2X3_types[29]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationFillArea::Class() { return *((IfcParse::entity*)IFC2X3_types[29]); }
// Ifc2x3::IfcAnnotationFillArea::IfcAnnotationFillArea(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcAnnotationFillArea::IfcAnnotationFillArea(::Ifc2x3::IfcCurve v1_OuterBoundary, std::optional< std::vector< ::Ifc2x3::IfcCurve > > v2_InnerBoundaries) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_OuterBoundary)); if (v2_InnerBoundaries) {set_attribute_value(1, (*v2_InnerBoundaries)->generalize()); }; populate_derived(); }

// Function implementations for IfcAnnotationFillAreaOccurrence
::Ifc2x3::IfcPoint Ifc2x3::IfcAnnotationFillAreaOccurrence::FillStyleTarget() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcPoint{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcPoint>(); }
void Ifc2x3::IfcAnnotationFillAreaOccurrence::setFillStyleTarget(const ::Ifc2x3::IfcPoint& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
std::optional< ::Ifc2x3::IfcGlobalOrLocalEnum::Value > Ifc2x3::IfcAnnotationFillAreaOccurrence::GlobalOrLocal() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcGlobalOrLocalEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcAnnotationFillAreaOccurrence::setGlobalOrLocal(const std::optional< ::Ifc2x3::IfcGlobalOrLocalEnum::Value >& v) { if (v) {set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(), (size_t) *v));} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcAnnotationFillAreaOccurrence::declaration() const { return *((IfcParse::entity*)IFC2X3_types[30]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationFillAreaOccurrence::Class() { return *((IfcParse::entity*)IFC2X3_types[30]); }
// Ifc2x3::IfcAnnotationFillAreaOccurrence::IfcAnnotationFillAreaOccurrence(const std::weak_ptr<InstanceData>& e) : IfcAnnotationOccurrence(e) { }
// Ifc2x3::IfcAnnotationFillAreaOccurrence::IfcAnnotationFillAreaOccurrence(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name, ::Ifc2x3::IfcPoint v4_FillStyleTarget, std::optional< ::Ifc2x3::IfcGlobalOrLocalEnum::Value > v5_GlobalOrLocal) : IfcAnnotationOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_FillStyleTarget) {set_attribute_value(3, (*v4_FillStyleTarget)); } if (v5_GlobalOrLocal) {set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)*v5_GlobalOrLocal))); }; populate_derived(); }

// Function implementations for IfcAnnotationOccurrence


// const IfcParse::entity& Ifc2x3::IfcAnnotationOccurrence::declaration() const { return *((IfcParse::entity*)IFC2X3_types[31]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationOccurrence::Class() { return *((IfcParse::entity*)IFC2X3_types[31]); }
// Ifc2x3::IfcAnnotationOccurrence::IfcAnnotationOccurrence(const std::weak_ptr<InstanceData>& e) : IfcStyledItem(e) { }
// Ifc2x3::IfcAnnotationOccurrence::IfcAnnotationOccurrence(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcStyledItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcAnnotationSurface
::Ifc2x3::IfcGeometricRepresentationItem Ifc2x3::IfcAnnotationSurface::Item() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcGeometricRepresentationItem>(); }
void Ifc2x3::IfcAnnotationSurface::setItem(const ::Ifc2x3::IfcGeometricRepresentationItem& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcTextureCoordinate Ifc2x3::IfcAnnotationSurface::TextureCoordinates() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcTextureCoordinate{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcTextureCoordinate>(); }
void Ifc2x3::IfcAnnotationSurface::setTextureCoordinates(const ::Ifc2x3::IfcTextureCoordinate& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcAnnotationSurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[32]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationSurface::Class() { return *((IfcParse::entity*)IFC2X3_types[32]); }
// Ifc2x3::IfcAnnotationSurface::IfcAnnotationSurface(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcAnnotationSurface::IfcAnnotationSurface(::Ifc2x3::IfcGeometricRepresentationItem v1_Item, ::Ifc2x3::IfcTextureCoordinate v2_TextureCoordinates) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Item)); if (v2_TextureCoordinates) {set_attribute_value(1, (*v2_TextureCoordinates)); }; populate_derived(); }

// Function implementations for IfcAnnotationSurfaceOccurrence


// const IfcParse::entity& Ifc2x3::IfcAnnotationSurfaceOccurrence::declaration() const { return *((IfcParse::entity*)IFC2X3_types[33]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationSurfaceOccurrence::Class() { return *((IfcParse::entity*)IFC2X3_types[33]); }
// Ifc2x3::IfcAnnotationSurfaceOccurrence::IfcAnnotationSurfaceOccurrence(const std::weak_ptr<InstanceData>& e) : IfcAnnotationOccurrence(e) { }
// Ifc2x3::IfcAnnotationSurfaceOccurrence::IfcAnnotationSurfaceOccurrence(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcAnnotationOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcAnnotationSymbolOccurrence


// const IfcParse::entity& Ifc2x3::IfcAnnotationSymbolOccurrence::declaration() const { return *((IfcParse::entity*)IFC2X3_types[34]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationSymbolOccurrence::Class() { return *((IfcParse::entity*)IFC2X3_types[34]); }
// Ifc2x3::IfcAnnotationSymbolOccurrence::IfcAnnotationSymbolOccurrence(const std::weak_ptr<InstanceData>& e) : IfcAnnotationOccurrence(e) { }
// Ifc2x3::IfcAnnotationSymbolOccurrence::IfcAnnotationSymbolOccurrence(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcAnnotationOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcAnnotationTextOccurrence


// const IfcParse::entity& Ifc2x3::IfcAnnotationTextOccurrence::declaration() const { return *((IfcParse::entity*)IFC2X3_types[35]); }
const IfcParse::entity& Ifc2x3::IfcAnnotationTextOccurrence::Class() { return *((IfcParse::entity*)IFC2X3_types[35]); }
// Ifc2x3::IfcAnnotationTextOccurrence::IfcAnnotationTextOccurrence(const std::weak_ptr<InstanceData>& e) : IfcAnnotationOccurrence(e) { }
// Ifc2x3::IfcAnnotationTextOccurrence::IfcAnnotationTextOccurrence(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcAnnotationOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcApplication
::Ifc2x3::IfcOrganization Ifc2x3::IfcApplication::ApplicationDeveloper() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcOrganization>(); }
void Ifc2x3::IfcApplication::setApplicationDeveloper(const ::Ifc2x3::IfcOrganization& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::string Ifc2x3::IfcApplication::Version() const {  std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcApplication::setVersion(const std::string& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::string Ifc2x3::IfcApplication::ApplicationFullName() const {  std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcApplication::setApplicationFullName(const std::string& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::string Ifc2x3::IfcApplication::ApplicationIdentifier() const {  std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcApplication::setApplicationIdentifier(const std::string& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcApplication::declaration() const { return *((IfcParse::entity*)IFC2X3_types[36]); }
const IfcParse::entity& Ifc2x3::IfcApplication::Class() { return *((IfcParse::entity*)IFC2X3_types[36]); }
// Ifc2x3::IfcApplication::IfcApplication(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcApplication::IfcApplication(::Ifc2x3::IfcOrganization v1_ApplicationDeveloper, std::string v2_Version, std::string v3_ApplicationFullName, std::string v4_ApplicationIdentifier) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ApplicationDeveloper));set_attribute_value(1, (v2_Version));set_attribute_value(2, (v3_ApplicationFullName));set_attribute_value(3, (v4_ApplicationIdentifier));; populate_derived(); }

// Function implementations for IfcAppliedValue
std::optional< std::string > Ifc2x3::IfcAppliedValue::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcAppliedValue::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcAppliedValue::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcAppliedValue::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcAppliedValueSelect Ifc2x3::IfcAppliedValue::AppliedValue() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcAppliedValueSelect{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcAppliedValueSelect>(); }
void Ifc2x3::IfcAppliedValue::setAppliedValue(const ::Ifc2x3::IfcAppliedValueSelect& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcMeasureWithUnit Ifc2x3::IfcAppliedValue::UnitBasis() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcMeasureWithUnit{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcMeasureWithUnit>(); }
void Ifc2x3::IfcAppliedValue::setUnitBasis(const ::Ifc2x3::IfcMeasureWithUnit& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcAppliedValue::ApplicableDate() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcAppliedValue::setApplicableDate(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcAppliedValue::FixedUntilDate() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcAppliedValue::setFixedUntilDate(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }

std::vector<::Ifc2x3::IfcReferencesValueDocument> Ifc2x3::IfcAppliedValue::ValuesReferenced() const { return cast_vector<IfcReferencesValueDocument>(file()->getInverse(data()->id(), IFC2X3_types[657], 1)); }
std::vector<::Ifc2x3::IfcAppliedValueRelationship> Ifc2x3::IfcAppliedValue::ValueOfComponents() const { return cast_vector<IfcAppliedValueRelationship>(file()->getInverse(data()->id(), IFC2X3_types[38], 0)); }
std::vector<::Ifc2x3::IfcAppliedValueRelationship> Ifc2x3::IfcAppliedValue::IsComponentIn() const { return cast_vector<IfcAppliedValueRelationship>(file()->getInverse(data()->id(), IFC2X3_types[38], 1)); }

// const IfcParse::entity& Ifc2x3::IfcAppliedValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[37]); }
const IfcParse::entity& Ifc2x3::IfcAppliedValue::Class() { return *((IfcParse::entity*)IFC2X3_types[37]); }
// Ifc2x3::IfcAppliedValue::IfcAppliedValue(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcAppliedValue::IfcAppliedValue(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcAppliedValueSelect v3_AppliedValue, ::Ifc2x3::IfcMeasureWithUnit v4_UnitBasis, ::Ifc2x3::IfcDateTimeSelect v5_ApplicableDate, ::Ifc2x3::IfcDateTimeSelect v6_FixedUntilDate) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_AppliedValue) {set_attribute_value(2, (*v3_AppliedValue)); } if (v4_UnitBasis) {set_attribute_value(3, (*v4_UnitBasis)); } if (v5_ApplicableDate) {set_attribute_value(4, (*v5_ApplicableDate)); } if (v6_FixedUntilDate) {set_attribute_value(5, (*v6_FixedUntilDate)); }; populate_derived(); }

// Function implementations for IfcAppliedValueRelationship
::Ifc2x3::IfcAppliedValue Ifc2x3::IfcAppliedValueRelationship::ComponentOfTotal() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcAppliedValue>(); }
void Ifc2x3::IfcAppliedValueRelationship::setComponentOfTotal(const ::Ifc2x3::IfcAppliedValue& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcAppliedValue > Ifc2x3::IfcAppliedValueRelationship::Components() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcAppliedValue>(es); }
void Ifc2x3::IfcAppliedValueRelationship::setComponents(const std::vector< ::Ifc2x3::IfcAppliedValue >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcArithmeticOperatorEnum::Value Ifc2x3::IfcAppliedValueRelationship::ArithmeticOperator() const {  return ::Ifc2x3::IfcArithmeticOperatorEnum::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcAppliedValueRelationship::setArithmeticOperator(const ::Ifc2x3::IfcArithmeticOperatorEnum::Value& v) { set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcArithmeticOperatorEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(2); }
std::optional< std::string > Ifc2x3::IfcAppliedValueRelationship::Name() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcAppliedValueRelationship::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< std::string > Ifc2x3::IfcAppliedValueRelationship::Description() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcAppliedValueRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcAppliedValueRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[38]); }
const IfcParse::entity& Ifc2x3::IfcAppliedValueRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[38]); }
// Ifc2x3::IfcAppliedValueRelationship::IfcAppliedValueRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcAppliedValueRelationship::IfcAppliedValueRelationship(::Ifc2x3::IfcAppliedValue v1_ComponentOfTotal, std::vector< ::Ifc2x3::IfcAppliedValue > v2_Components, ::Ifc2x3::IfcArithmeticOperatorEnum::Value v3_ArithmeticOperator, std::optional< std::string > v4_Name, std::optional< std::string > v5_Description) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_ComponentOfTotal));set_attribute_value(1, (v2_Components)->generalize());set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcArithmeticOperatorEnum::Class(),(size_t)v3_ArithmeticOperator))); if (v4_Name) {set_attribute_value(3, (*v4_Name)); } if (v5_Description) {set_attribute_value(4, (*v5_Description)); }; populate_derived(); }

// Function implementations for IfcApproval
std::optional< std::string > Ifc2x3::IfcApproval::Description() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcApproval::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcApproval::ApprovalDateTime() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcApproval::setApprovalDateTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcApproval::ApprovalStatus() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcApproval::setApprovalStatus(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::string > Ifc2x3::IfcApproval::ApprovalLevel() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcApproval::setApprovalLevel(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< std::string > Ifc2x3::IfcApproval::ApprovalQualifier() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcApproval::setApprovalQualifier(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::string Ifc2x3::IfcApproval::Name() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcApproval::setName(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
std::string Ifc2x3::IfcApproval::Identifier() const {  std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcApproval::setIdentifier(const std::string& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }

std::vector<::Ifc2x3::IfcApprovalActorRelationship> Ifc2x3::IfcApproval::Actors() const { return cast_vector<IfcApprovalActorRelationship>(file()->getInverse(data()->id(), IFC2X3_types[41], 1)); }
std::vector<::Ifc2x3::IfcApprovalRelationship> Ifc2x3::IfcApproval::IsRelatedWith() const { return cast_vector<IfcApprovalRelationship>(file()->getInverse(data()->id(), IFC2X3_types[43], 0)); }
std::vector<::Ifc2x3::IfcApprovalRelationship> Ifc2x3::IfcApproval::Relates() const { return cast_vector<IfcApprovalRelationship>(file()->getInverse(data()->id(), IFC2X3_types[43], 1)); }

// const IfcParse::entity& Ifc2x3::IfcApproval::declaration() const { return *((IfcParse::entity*)IFC2X3_types[40]); }
const IfcParse::entity& Ifc2x3::IfcApproval::Class() { return *((IfcParse::entity*)IFC2X3_types[40]); }
// Ifc2x3::IfcApproval::IfcApproval(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcApproval::IfcApproval(std::optional< std::string > v1_Description, ::Ifc2x3::IfcDateTimeSelect v2_ApprovalDateTime, std::optional< std::string > v3_ApprovalStatus, std::optional< std::string > v4_ApprovalLevel, std::optional< std::string > v5_ApprovalQualifier, std::string v6_Name, std::string v7_Identifier) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Description) {set_attribute_value(0, (*v1_Description)); }set_attribute_value(1, (v2_ApprovalDateTime)); if (v3_ApprovalStatus) {set_attribute_value(2, (*v3_ApprovalStatus)); } if (v4_ApprovalLevel) {set_attribute_value(3, (*v4_ApprovalLevel)); } if (v5_ApprovalQualifier) {set_attribute_value(4, (*v5_ApprovalQualifier)); }set_attribute_value(5, (v6_Name));set_attribute_value(6, (v7_Identifier));; populate_derived(); }

// Function implementations for IfcApprovalActorRelationship
::Ifc2x3::IfcActorSelect Ifc2x3::IfcApprovalActorRelationship::Actor() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcApprovalActorRelationship::setActor(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcApproval Ifc2x3::IfcApprovalActorRelationship::Approval() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcApproval>(); }
void Ifc2x3::IfcApprovalActorRelationship::setApproval(const ::Ifc2x3::IfcApproval& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcActorRole Ifc2x3::IfcApprovalActorRelationship::Role() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcActorRole>(); }
void Ifc2x3::IfcApprovalActorRelationship::setRole(const ::Ifc2x3::IfcActorRole& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcApprovalActorRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[41]); }
const IfcParse::entity& Ifc2x3::IfcApprovalActorRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[41]); }
// Ifc2x3::IfcApprovalActorRelationship::IfcApprovalActorRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcApprovalActorRelationship::IfcApprovalActorRelationship(::Ifc2x3::IfcActorSelect v1_Actor, ::Ifc2x3::IfcApproval v2_Approval, ::Ifc2x3::IfcActorRole v3_Role) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Actor));set_attribute_value(1, (v2_Approval));set_attribute_value(2, (v3_Role));; populate_derived(); }

// Function implementations for IfcApprovalPropertyRelationship
std::vector< ::Ifc2x3::IfcProperty > Ifc2x3::IfcApprovalPropertyRelationship::ApprovedProperties() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcProperty>(es); }
void Ifc2x3::IfcApprovalPropertyRelationship::setApprovedProperties(const std::vector< ::Ifc2x3::IfcProperty >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcApproval Ifc2x3::IfcApprovalPropertyRelationship::Approval() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcApproval>(); }
void Ifc2x3::IfcApprovalPropertyRelationship::setApproval(const ::Ifc2x3::IfcApproval& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcApprovalPropertyRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[42]); }
const IfcParse::entity& Ifc2x3::IfcApprovalPropertyRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[42]); }
// Ifc2x3::IfcApprovalPropertyRelationship::IfcApprovalPropertyRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcApprovalPropertyRelationship::IfcApprovalPropertyRelationship(std::vector< ::Ifc2x3::IfcProperty > v1_ApprovedProperties, ::Ifc2x3::IfcApproval v2_Approval) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_ApprovedProperties)->generalize());set_attribute_value(1, (v2_Approval));; populate_derived(); }

// Function implementations for IfcApprovalRelationship
::Ifc2x3::IfcApproval Ifc2x3::IfcApprovalRelationship::RelatedApproval() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcApproval>(); }
void Ifc2x3::IfcApprovalRelationship::setRelatedApproval(const ::Ifc2x3::IfcApproval& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcApproval Ifc2x3::IfcApprovalRelationship::RelatingApproval() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcApproval>(); }
void Ifc2x3::IfcApprovalRelationship::setRelatingApproval(const ::Ifc2x3::IfcApproval& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcApprovalRelationship::Description() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcApprovalRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::string Ifc2x3::IfcApprovalRelationship::Name() const {  std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcApprovalRelationship::setName(const std::string& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcApprovalRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[43]); }
const IfcParse::entity& Ifc2x3::IfcApprovalRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[43]); }
// Ifc2x3::IfcApprovalRelationship::IfcApprovalRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcApprovalRelationship::IfcApprovalRelationship(::Ifc2x3::IfcApproval v1_RelatedApproval, ::Ifc2x3::IfcApproval v2_RelatingApproval, std::optional< std::string > v3_Description, std::string v4_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_RelatedApproval));set_attribute_value(1, (v2_RelatingApproval)); if (v3_Description) {set_attribute_value(2, (*v3_Description)); }set_attribute_value(3, (v4_Name));; populate_derived(); }

// Function implementations for IfcArbitraryClosedProfileDef
::Ifc2x3::IfcCurve Ifc2x3::IfcArbitraryClosedProfileDef::OuterCurve() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcArbitraryClosedProfileDef::setOuterCurve(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcArbitraryClosedProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[44]); }
const IfcParse::entity& Ifc2x3::IfcArbitraryClosedProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[44]); }
// Ifc2x3::IfcArbitraryClosedProfileDef::IfcArbitraryClosedProfileDef(const std::weak_ptr<InstanceData>& e) : IfcProfileDef(e) { }
// Ifc2x3::IfcArbitraryClosedProfileDef::IfcArbitraryClosedProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcCurve v3_OuterCurve) : IfcProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_OuterCurve));; populate_derived(); }

// Function implementations for IfcArbitraryOpenProfileDef
::Ifc2x3::IfcBoundedCurve Ifc2x3::IfcArbitraryOpenProfileDef::Curve() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcBoundedCurve>(); }
void Ifc2x3::IfcArbitraryOpenProfileDef::setCurve(const ::Ifc2x3::IfcBoundedCurve& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcArbitraryOpenProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[45]); }
const IfcParse::entity& Ifc2x3::IfcArbitraryOpenProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[45]); }
// Ifc2x3::IfcArbitraryOpenProfileDef::IfcArbitraryOpenProfileDef(const std::weak_ptr<InstanceData>& e) : IfcProfileDef(e) { }
// Ifc2x3::IfcArbitraryOpenProfileDef::IfcArbitraryOpenProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcBoundedCurve v3_Curve) : IfcProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Curve));; populate_derived(); }

// Function implementations for IfcArbitraryProfileDefWithVoids
std::vector< ::Ifc2x3::IfcCurve > Ifc2x3::IfcArbitraryProfileDefWithVoids::InnerCurves() const {  std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcCurve>(es); }
void Ifc2x3::IfcArbitraryProfileDefWithVoids::setInnerCurves(const std::vector< ::Ifc2x3::IfcCurve >& v) { set_attribute_value(3, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcArbitraryProfileDefWithVoids::declaration() const { return *((IfcParse::entity*)IFC2X3_types[46]); }
const IfcParse::entity& Ifc2x3::IfcArbitraryProfileDefWithVoids::Class() { return *((IfcParse::entity*)IFC2X3_types[46]); }
// Ifc2x3::IfcArbitraryProfileDefWithVoids::IfcArbitraryProfileDefWithVoids(const std::weak_ptr<InstanceData>& e) : IfcArbitraryClosedProfileDef(e) { }
// Ifc2x3::IfcArbitraryProfileDefWithVoids::IfcArbitraryProfileDefWithVoids(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcCurve v3_OuterCurve, std::vector< ::Ifc2x3::IfcCurve > v4_InnerCurves) : IfcArbitraryClosedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_OuterCurve));set_attribute_value(3, (v4_InnerCurves)->generalize());; populate_derived(); }

// Function implementations for IfcAsset
std::string Ifc2x3::IfcAsset::AssetID() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcAsset::setAssetID(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcCostValue Ifc2x3::IfcAsset::OriginalValue() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcCostValue>(); }
void Ifc2x3::IfcAsset::setOriginalValue(const ::Ifc2x3::IfcCostValue& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcCostValue Ifc2x3::IfcAsset::CurrentValue() const {  return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcCostValue>(); }
void Ifc2x3::IfcAsset::setCurrentValue(const ::Ifc2x3::IfcCostValue& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcCostValue Ifc2x3::IfcAsset::TotalReplacementCost() const {  return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcCostValue>(); }
void Ifc2x3::IfcAsset::setTotalReplacementCost(const ::Ifc2x3::IfcCostValue& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcActorSelect Ifc2x3::IfcAsset::Owner() const {  return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcAsset::setOwner(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
::Ifc2x3::IfcActorSelect Ifc2x3::IfcAsset::User() const {  return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcAsset::setUser(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
::Ifc2x3::IfcPerson Ifc2x3::IfcAsset::ResponsiblePerson() const {  return ((express::Base)(get_attribute_value(11))).as<::Ifc2x3::IfcPerson>(); }
void Ifc2x3::IfcAsset::setResponsiblePerson(const ::Ifc2x3::IfcPerson& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
::Ifc2x3::IfcCalendarDate Ifc2x3::IfcAsset::IncorporationDate() const {  return ((express::Base)(get_attribute_value(12))).as<::Ifc2x3::IfcCalendarDate>(); }
void Ifc2x3::IfcAsset::setIncorporationDate(const ::Ifc2x3::IfcCalendarDate& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
::Ifc2x3::IfcCostValue Ifc2x3::IfcAsset::DepreciatedValue() const {  return ((express::Base)(get_attribute_value(13))).as<::Ifc2x3::IfcCostValue>(); }
void Ifc2x3::IfcAsset::setDepreciatedValue(const ::Ifc2x3::IfcCostValue& v) { set_attribute_value(13, v);if constexpr (false)unset_attribute_value(13); }


// const IfcParse::entity& Ifc2x3::IfcAsset::declaration() const { return *((IfcParse::entity*)IFC2X3_types[50]); }
const IfcParse::entity& Ifc2x3::IfcAsset::Class() { return *((IfcParse::entity*)IFC2X3_types[50]); }
// Ifc2x3::IfcAsset::IfcAsset(const std::weak_ptr<InstanceData>& e) : IfcGroup(e) { }
// Ifc2x3::IfcAsset::IfcAsset(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_AssetID, ::Ifc2x3::IfcCostValue v7_OriginalValue, ::Ifc2x3::IfcCostValue v8_CurrentValue, ::Ifc2x3::IfcCostValue v9_TotalReplacementCost, ::Ifc2x3::IfcActorSelect v10_Owner, ::Ifc2x3::IfcActorSelect v11_User, ::Ifc2x3::IfcPerson v12_ResponsiblePerson, ::Ifc2x3::IfcCalendarDate v13_IncorporationDate, ::Ifc2x3::IfcCostValue v14_DepreciatedValue) : IfcGroup(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(14))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_AssetID));set_attribute_value(6, (v7_OriginalValue));set_attribute_value(7, (v8_CurrentValue));set_attribute_value(8, (v9_TotalReplacementCost));set_attribute_value(9, (v10_Owner));set_attribute_value(10, (v11_User));set_attribute_value(11, (v12_ResponsiblePerson));set_attribute_value(12, (v13_IncorporationDate));set_attribute_value(13, (v14_DepreciatedValue));; populate_derived(); }

// Function implementations for IfcAsymmetricIShapeProfileDef
double Ifc2x3::IfcAsymmetricIShapeProfileDef::TopFlangeWidth() const {  double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcAsymmetricIShapeProfileDef::setTopFlangeWidth(const double& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
std::optional< double > Ifc2x3::IfcAsymmetricIShapeProfileDef::TopFlangeThickness() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcAsymmetricIShapeProfileDef::setTopFlangeThickness(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcAsymmetricIShapeProfileDef::TopFlangeFilletRadius() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcAsymmetricIShapeProfileDef::setTopFlangeFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcAsymmetricIShapeProfileDef::CentreOfGravityInY() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcAsymmetricIShapeProfileDef::setCentreOfGravityInY(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }


// const IfcParse::entity& Ifc2x3::IfcAsymmetricIShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[51]); }
const IfcParse::entity& Ifc2x3::IfcAsymmetricIShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[51]); }
// Ifc2x3::IfcAsymmetricIShapeProfileDef::IfcAsymmetricIShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcIShapeProfileDef(e) { }
// Ifc2x3::IfcAsymmetricIShapeProfileDef::IfcAsymmetricIShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_OverallWidth, double v5_OverallDepth, double v6_WebThickness, double v7_FlangeThickness, std::optional< double > v8_FilletRadius, double v9_TopFlangeWidth, std::optional< double > v10_TopFlangeThickness, std::optional< double > v11_TopFlangeFilletRadius, std::optional< double > v12_CentreOfGravityInY) : IfcIShapeProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_OverallWidth));set_attribute_value(4, (v5_OverallDepth));set_attribute_value(5, (v6_WebThickness));set_attribute_value(6, (v7_FlangeThickness)); if (v8_FilletRadius) {set_attribute_value(7, (*v8_FilletRadius)); }set_attribute_value(8, (v9_TopFlangeWidth)); if (v10_TopFlangeThickness) {set_attribute_value(9, (*v10_TopFlangeThickness)); } if (v11_TopFlangeFilletRadius) {set_attribute_value(10, (*v11_TopFlangeFilletRadius)); } if (v12_CentreOfGravityInY) {set_attribute_value(11, (*v12_CentreOfGravityInY)); }; populate_derived(); }

// Function implementations for IfcAxis1Placement
::Ifc2x3::IfcDirection Ifc2x3::IfcAxis1Placement::Axis() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcAxis1Placement::setAxis(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcAxis1Placement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[52]); }
const IfcParse::entity& Ifc2x3::IfcAxis1Placement::Class() { return *((IfcParse::entity*)IFC2X3_types[52]); }
// Ifc2x3::IfcAxis1Placement::IfcAxis1Placement(const std::weak_ptr<InstanceData>& e) : IfcPlacement(e) { }
// Ifc2x3::IfcAxis1Placement::IfcAxis1Placement(::Ifc2x3::IfcCartesianPoint v1_Location, ::Ifc2x3::IfcDirection v2_Axis) : IfcPlacement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Location)); if (v2_Axis) {set_attribute_value(1, (*v2_Axis)); }; populate_derived(); }

// Function implementations for IfcAxis2Placement2D
::Ifc2x3::IfcDirection Ifc2x3::IfcAxis2Placement2D::RefDirection() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcAxis2Placement2D::setRefDirection(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcAxis2Placement2D::declaration() const { return *((IfcParse::entity*)IFC2X3_types[54]); }
const IfcParse::entity& Ifc2x3::IfcAxis2Placement2D::Class() { return *((IfcParse::entity*)IFC2X3_types[54]); }
// Ifc2x3::IfcAxis2Placement2D::IfcAxis2Placement2D(const std::weak_ptr<InstanceData>& e) : IfcPlacement(e) { }
// Ifc2x3::IfcAxis2Placement2D::IfcAxis2Placement2D(::Ifc2x3::IfcCartesianPoint v1_Location, ::Ifc2x3::IfcDirection v2_RefDirection) : IfcPlacement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Location)); if (v2_RefDirection) {set_attribute_value(1, (*v2_RefDirection)); }; populate_derived(); }

// Function implementations for IfcAxis2Placement3D
::Ifc2x3::IfcDirection Ifc2x3::IfcAxis2Placement3D::Axis() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcAxis2Placement3D::setAxis(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcDirection Ifc2x3::IfcAxis2Placement3D::RefDirection() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcAxis2Placement3D::setRefDirection(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcAxis2Placement3D::declaration() const { return *((IfcParse::entity*)IFC2X3_types[55]); }
const IfcParse::entity& Ifc2x3::IfcAxis2Placement3D::Class() { return *((IfcParse::entity*)IFC2X3_types[55]); }
// Ifc2x3::IfcAxis2Placement3D::IfcAxis2Placement3D(const std::weak_ptr<InstanceData>& e) : IfcPlacement(e) { }
// Ifc2x3::IfcAxis2Placement3D::IfcAxis2Placement3D(::Ifc2x3::IfcCartesianPoint v1_Location, ::Ifc2x3::IfcDirection v2_Axis, ::Ifc2x3::IfcDirection v3_RefDirection) : IfcPlacement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Location)); if (v2_Axis) {set_attribute_value(1, (*v2_Axis)); } if (v3_RefDirection) {set_attribute_value(2, (*v3_RefDirection)); }; populate_derived(); }

// Function implementations for IfcBSplineCurve
int Ifc2x3::IfcBSplineCurve::Degree() const {  int v = get_attribute_value(0); return v; }
void Ifc2x3::IfcBSplineCurve::setDegree(const int& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcCartesianPoint > Ifc2x3::IfcBSplineCurve::ControlPointsList() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcCartesianPoint>(es); }
void Ifc2x3::IfcBSplineCurve::setControlPointsList(const std::vector< ::Ifc2x3::IfcCartesianPoint >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcBSplineCurveForm::Value Ifc2x3::IfcBSplineCurve::CurveForm() const {  return ::Ifc2x3::IfcBSplineCurveForm::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcBSplineCurve::setCurveForm(const ::Ifc2x3::IfcBSplineCurveForm::Value& v) { set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcBSplineCurveForm::Class(), (size_t) v));if constexpr (false)unset_attribute_value(2); }
boost::logic::tribool Ifc2x3::IfcBSplineCurve::ClosedCurve() const {  boost::logic::tribool v = get_attribute_value(3); return v; }
void Ifc2x3::IfcBSplineCurve::setClosedCurve(const boost::logic::tribool& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
boost::logic::tribool Ifc2x3::IfcBSplineCurve::SelfIntersect() const {  boost::logic::tribool v = get_attribute_value(4); return v; }
void Ifc2x3::IfcBSplineCurve::setSelfIntersect(const boost::logic::tribool& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcBSplineCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[80]); }
const IfcParse::entity& Ifc2x3::IfcBSplineCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[80]); }
// Ifc2x3::IfcBSplineCurve::IfcBSplineCurve(const std::weak_ptr<InstanceData>& e) : IfcBoundedCurve(e) { }
// Ifc2x3::IfcBSplineCurve::IfcBSplineCurve(int v1_Degree, std::vector< ::Ifc2x3::IfcCartesianPoint > v2_ControlPointsList, ::Ifc2x3::IfcBSplineCurveForm::Value v3_CurveForm, boost::logic::tribool v4_ClosedCurve, boost::logic::tribool v5_SelfIntersect) : IfcBoundedCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Degree));set_attribute_value(1, (v2_ControlPointsList)->generalize());set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcBSplineCurveForm::Class(),(size_t)v3_CurveForm)));set_attribute_value(3, (v4_ClosedCurve));set_attribute_value(4, (v5_SelfIntersect));; populate_derived(); }

// Function implementations for IfcBeam


// const IfcParse::entity& Ifc2x3::IfcBeam::declaration() const { return *((IfcParse::entity*)IFC2X3_types[56]); }
const IfcParse::entity& Ifc2x3::IfcBeam::Class() { return *((IfcParse::entity*)IFC2X3_types[56]); }
// Ifc2x3::IfcBeam::IfcBeam(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcBeam::IfcBeam(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcBeamType
::Ifc2x3::IfcBeamTypeEnum::Value Ifc2x3::IfcBeamType::PredefinedType() const {  return ::Ifc2x3::IfcBeamTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcBeamType::setPredefinedType(const ::Ifc2x3::IfcBeamTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcBeamTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcBeamType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[57]); }
const IfcParse::entity& Ifc2x3::IfcBeamType::Class() { return *((IfcParse::entity*)IFC2X3_types[57]); }
// Ifc2x3::IfcBeamType::IfcBeamType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcBeamType::IfcBeamType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcBeamTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcBeamTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcBezierCurve


// const IfcParse::entity& Ifc2x3::IfcBezierCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[60]); }
const IfcParse::entity& Ifc2x3::IfcBezierCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[60]); }
// Ifc2x3::IfcBezierCurve::IfcBezierCurve(const std::weak_ptr<InstanceData>& e) : IfcBSplineCurve(e) { }
// Ifc2x3::IfcBezierCurve::IfcBezierCurve(int v1_Degree, std::vector< ::Ifc2x3::IfcCartesianPoint > v2_ControlPointsList, ::Ifc2x3::IfcBSplineCurveForm::Value v3_CurveForm, boost::logic::tribool v4_ClosedCurve, boost::logic::tribool v5_SelfIntersect) : IfcBSplineCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Degree));set_attribute_value(1, (v2_ControlPointsList)->generalize());set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcBSplineCurveForm::Class(),(size_t)v3_CurveForm)));set_attribute_value(3, (v4_ClosedCurve));set_attribute_value(4, (v5_SelfIntersect));; populate_derived(); }

// Function implementations for IfcBlobTexture
std::string Ifc2x3::IfcBlobTexture::RasterFormat() const {  std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcBlobTexture::setRasterFormat(const std::string& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
bool Ifc2x3::IfcBlobTexture::RasterCode() const {  bool v = get_attribute_value(5); return v; }
void Ifc2x3::IfcBlobTexture::setRasterCode(const bool& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcBlobTexture::declaration() const { return *((IfcParse::entity*)IFC2X3_types[61]); }
const IfcParse::entity& Ifc2x3::IfcBlobTexture::Class() { return *((IfcParse::entity*)IFC2X3_types[61]); }
// Ifc2x3::IfcBlobTexture::IfcBlobTexture(const std::weak_ptr<InstanceData>& e) : IfcSurfaceTexture(e) { }
// Ifc2x3::IfcBlobTexture::IfcBlobTexture(bool v1_RepeatS, bool v2_RepeatT, ::Ifc2x3::IfcSurfaceTextureEnum::Value v3_TextureType, ::Ifc2x3::IfcCartesianTransformationOperator2D v4_TextureTransform, std::string v5_RasterFormat, bool v6_RasterCode) : IfcSurfaceTexture(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_RepeatS));set_attribute_value(1, (v2_RepeatT));set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcSurfaceTextureEnum::Class(),(size_t)v3_TextureType))); if (v4_TextureTransform) {set_attribute_value(3, (*v4_TextureTransform)); }set_attribute_value(4, (v5_RasterFormat));set_attribute_value(5, (v6_RasterCode));; populate_derived(); }

// Function implementations for IfcBlock
double Ifc2x3::IfcBlock::XLength() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcBlock::setXLength(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcBlock::YLength() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcBlock::setYLength(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcBlock::ZLength() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcBlock::setZLength(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcBlock::declaration() const { return *((IfcParse::entity*)IFC2X3_types[62]); }
const IfcParse::entity& Ifc2x3::IfcBlock::Class() { return *((IfcParse::entity*)IFC2X3_types[62]); }
// Ifc2x3::IfcBlock::IfcBlock(const std::weak_ptr<InstanceData>& e) : IfcCsgPrimitive3D(e) { }
// Ifc2x3::IfcBlock::IfcBlock(::Ifc2x3::IfcAxis2Placement3D v1_Position, double v2_XLength, double v3_YLength, double v4_ZLength) : IfcCsgPrimitive3D(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Position));set_attribute_value(1, (v2_XLength));set_attribute_value(2, (v3_YLength));set_attribute_value(3, (v4_ZLength));; populate_derived(); }

// Function implementations for IfcBoilerType
::Ifc2x3::IfcBoilerTypeEnum::Value Ifc2x3::IfcBoilerType::PredefinedType() const {  return ::Ifc2x3::IfcBoilerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcBoilerType::setPredefinedType(const ::Ifc2x3::IfcBoilerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcBoilerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcBoilerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[63]); }
const IfcParse::entity& Ifc2x3::IfcBoilerType::Class() { return *((IfcParse::entity*)IFC2X3_types[63]); }
// Ifc2x3::IfcBoilerType::IfcBoilerType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcBoilerType::IfcBoilerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcBoilerTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcBoilerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcBooleanClippingResult


// const IfcParse::entity& Ifc2x3::IfcBooleanClippingResult::declaration() const { return *((IfcParse::entity*)IFC2X3_types[66]); }
const IfcParse::entity& Ifc2x3::IfcBooleanClippingResult::Class() { return *((IfcParse::entity*)IFC2X3_types[66]); }
// Ifc2x3::IfcBooleanClippingResult::IfcBooleanClippingResult(const std::weak_ptr<InstanceData>& e) : IfcBooleanResult(e) { }
// Ifc2x3::IfcBooleanClippingResult::IfcBooleanClippingResult(::Ifc2x3::IfcBooleanOperator::Value v1_Operator, ::Ifc2x3::IfcBooleanOperand v2_FirstOperand, ::Ifc2x3::IfcBooleanOperand v3_SecondOperand) : IfcBooleanResult(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcBooleanOperator::Class(),(size_t)v1_Operator)));set_attribute_value(1, (v2_FirstOperand));set_attribute_value(2, (v3_SecondOperand));; populate_derived(); }

// Function implementations for IfcBooleanResult
::Ifc2x3::IfcBooleanOperator::Value Ifc2x3::IfcBooleanResult::Operator() const {  return ::Ifc2x3::IfcBooleanOperator::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcBooleanResult::setOperator(const ::Ifc2x3::IfcBooleanOperator::Value& v) { set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcBooleanOperator::Class(), (size_t) v));if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcBooleanOperand Ifc2x3::IfcBooleanResult::FirstOperand() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcBooleanOperand>(); }
void Ifc2x3::IfcBooleanResult::setFirstOperand(const ::Ifc2x3::IfcBooleanOperand& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcBooleanOperand Ifc2x3::IfcBooleanResult::SecondOperand() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcBooleanOperand>(); }
void Ifc2x3::IfcBooleanResult::setSecondOperand(const ::Ifc2x3::IfcBooleanOperand& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcBooleanResult::declaration() const { return *((IfcParse::entity*)IFC2X3_types[69]); }
const IfcParse::entity& Ifc2x3::IfcBooleanResult::Class() { return *((IfcParse::entity*)IFC2X3_types[69]); }
// Ifc2x3::IfcBooleanResult::IfcBooleanResult(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcBooleanResult::IfcBooleanResult(::Ifc2x3::IfcBooleanOperator::Value v1_Operator, ::Ifc2x3::IfcBooleanOperand v2_FirstOperand, ::Ifc2x3::IfcBooleanOperand v3_SecondOperand) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcBooleanOperator::Class(),(size_t)v1_Operator)));set_attribute_value(1, (v2_FirstOperand));set_attribute_value(2, (v3_SecondOperand));; populate_derived(); }

// Function implementations for IfcBoundaryCondition
std::optional< std::string > Ifc2x3::IfcBoundaryCondition::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcBoundaryCondition::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }


// const IfcParse::entity& Ifc2x3::IfcBoundaryCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[70]); }
const IfcParse::entity& Ifc2x3::IfcBoundaryCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[70]); }
// Ifc2x3::IfcBoundaryCondition::IfcBoundaryCondition(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcBoundaryCondition::IfcBoundaryCondition(std::optional< std::string > v1_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }; populate_derived(); }

// Function implementations for IfcBoundaryEdgeCondition
std::optional< double > Ifc2x3::IfcBoundaryEdgeCondition::LinearStiffnessByLengthX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcBoundaryEdgeCondition::setLinearStiffnessByLengthX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcBoundaryEdgeCondition::LinearStiffnessByLengthY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcBoundaryEdgeCondition::setLinearStiffnessByLengthY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcBoundaryEdgeCondition::LinearStiffnessByLengthZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcBoundaryEdgeCondition::setLinearStiffnessByLengthZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcBoundaryEdgeCondition::RotationalStiffnessByLengthX() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcBoundaryEdgeCondition::setRotationalStiffnessByLengthX(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcBoundaryEdgeCondition::RotationalStiffnessByLengthY() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcBoundaryEdgeCondition::setRotationalStiffnessByLengthY(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcBoundaryEdgeCondition::RotationalStiffnessByLengthZ() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcBoundaryEdgeCondition::setRotationalStiffnessByLengthZ(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcBoundaryEdgeCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[71]); }
const IfcParse::entity& Ifc2x3::IfcBoundaryEdgeCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[71]); }
// Ifc2x3::IfcBoundaryEdgeCondition::IfcBoundaryEdgeCondition(const std::weak_ptr<InstanceData>& e) : IfcBoundaryCondition(e) { }
// Ifc2x3::IfcBoundaryEdgeCondition::IfcBoundaryEdgeCondition(std::optional< std::string > v1_Name, std::optional< double > v2_LinearStiffnessByLengthX, std::optional< double > v3_LinearStiffnessByLengthY, std::optional< double > v4_LinearStiffnessByLengthZ, std::optional< double > v5_RotationalStiffnessByLengthX, std::optional< double > v6_RotationalStiffnessByLengthY, std::optional< double > v7_RotationalStiffnessByLengthZ) : IfcBoundaryCondition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_LinearStiffnessByLengthX) {set_attribute_value(1, (*v2_LinearStiffnessByLengthX)); } if (v3_LinearStiffnessByLengthY) {set_attribute_value(2, (*v3_LinearStiffnessByLengthY)); } if (v4_LinearStiffnessByLengthZ) {set_attribute_value(3, (*v4_LinearStiffnessByLengthZ)); } if (v5_RotationalStiffnessByLengthX) {set_attribute_value(4, (*v5_RotationalStiffnessByLengthX)); } if (v6_RotationalStiffnessByLengthY) {set_attribute_value(5, (*v6_RotationalStiffnessByLengthY)); } if (v7_RotationalStiffnessByLengthZ) {set_attribute_value(6, (*v7_RotationalStiffnessByLengthZ)); }; populate_derived(); }

// Function implementations for IfcBoundaryFaceCondition
std::optional< double > Ifc2x3::IfcBoundaryFaceCondition::LinearStiffnessByAreaX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcBoundaryFaceCondition::setLinearStiffnessByAreaX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcBoundaryFaceCondition::LinearStiffnessByAreaY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcBoundaryFaceCondition::setLinearStiffnessByAreaY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcBoundaryFaceCondition::LinearStiffnessByAreaZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcBoundaryFaceCondition::setLinearStiffnessByAreaZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcBoundaryFaceCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[72]); }
const IfcParse::entity& Ifc2x3::IfcBoundaryFaceCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[72]); }
// Ifc2x3::IfcBoundaryFaceCondition::IfcBoundaryFaceCondition(const std::weak_ptr<InstanceData>& e) : IfcBoundaryCondition(e) { }
// Ifc2x3::IfcBoundaryFaceCondition::IfcBoundaryFaceCondition(std::optional< std::string > v1_Name, std::optional< double > v2_LinearStiffnessByAreaX, std::optional< double > v3_LinearStiffnessByAreaY, std::optional< double > v4_LinearStiffnessByAreaZ) : IfcBoundaryCondition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_LinearStiffnessByAreaX) {set_attribute_value(1, (*v2_LinearStiffnessByAreaX)); } if (v3_LinearStiffnessByAreaY) {set_attribute_value(2, (*v3_LinearStiffnessByAreaY)); } if (v4_LinearStiffnessByAreaZ) {set_attribute_value(3, (*v4_LinearStiffnessByAreaZ)); }; populate_derived(); }

// Function implementations for IfcBoundaryNodeCondition
std::optional< double > Ifc2x3::IfcBoundaryNodeCondition::LinearStiffnessX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcBoundaryNodeCondition::setLinearStiffnessX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcBoundaryNodeCondition::LinearStiffnessY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcBoundaryNodeCondition::setLinearStiffnessY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcBoundaryNodeCondition::LinearStiffnessZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcBoundaryNodeCondition::setLinearStiffnessZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcBoundaryNodeCondition::RotationalStiffnessX() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcBoundaryNodeCondition::setRotationalStiffnessX(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcBoundaryNodeCondition::RotationalStiffnessY() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcBoundaryNodeCondition::setRotationalStiffnessY(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcBoundaryNodeCondition::RotationalStiffnessZ() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcBoundaryNodeCondition::setRotationalStiffnessZ(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcBoundaryNodeCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[73]); }
const IfcParse::entity& Ifc2x3::IfcBoundaryNodeCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[73]); }
// Ifc2x3::IfcBoundaryNodeCondition::IfcBoundaryNodeCondition(const std::weak_ptr<InstanceData>& e) : IfcBoundaryCondition(e) { }
// Ifc2x3::IfcBoundaryNodeCondition::IfcBoundaryNodeCondition(std::optional< std::string > v1_Name, std::optional< double > v2_LinearStiffnessX, std::optional< double > v3_LinearStiffnessY, std::optional< double > v4_LinearStiffnessZ, std::optional< double > v5_RotationalStiffnessX, std::optional< double > v6_RotationalStiffnessY, std::optional< double > v7_RotationalStiffnessZ) : IfcBoundaryCondition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_LinearStiffnessX) {set_attribute_value(1, (*v2_LinearStiffnessX)); } if (v3_LinearStiffnessY) {set_attribute_value(2, (*v3_LinearStiffnessY)); } if (v4_LinearStiffnessZ) {set_attribute_value(3, (*v4_LinearStiffnessZ)); } if (v5_RotationalStiffnessX) {set_attribute_value(4, (*v5_RotationalStiffnessX)); } if (v6_RotationalStiffnessY) {set_attribute_value(5, (*v6_RotationalStiffnessY)); } if (v7_RotationalStiffnessZ) {set_attribute_value(6, (*v7_RotationalStiffnessZ)); }; populate_derived(); }

// Function implementations for IfcBoundaryNodeConditionWarping
std::optional< double > Ifc2x3::IfcBoundaryNodeConditionWarping::WarpingStiffness() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcBoundaryNodeConditionWarping::setWarpingStiffness(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcBoundaryNodeConditionWarping::declaration() const { return *((IfcParse::entity*)IFC2X3_types[74]); }
const IfcParse::entity& Ifc2x3::IfcBoundaryNodeConditionWarping::Class() { return *((IfcParse::entity*)IFC2X3_types[74]); }
// Ifc2x3::IfcBoundaryNodeConditionWarping::IfcBoundaryNodeConditionWarping(const std::weak_ptr<InstanceData>& e) : IfcBoundaryNodeCondition(e) { }
// Ifc2x3::IfcBoundaryNodeConditionWarping::IfcBoundaryNodeConditionWarping(std::optional< std::string > v1_Name, std::optional< double > v2_LinearStiffnessX, std::optional< double > v3_LinearStiffnessY, std::optional< double > v4_LinearStiffnessZ, std::optional< double > v5_RotationalStiffnessX, std::optional< double > v6_RotationalStiffnessY, std::optional< double > v7_RotationalStiffnessZ, std::optional< double > v8_WarpingStiffness) : IfcBoundaryNodeCondition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_LinearStiffnessX) {set_attribute_value(1, (*v2_LinearStiffnessX)); } if (v3_LinearStiffnessY) {set_attribute_value(2, (*v3_LinearStiffnessY)); } if (v4_LinearStiffnessZ) {set_attribute_value(3, (*v4_LinearStiffnessZ)); } if (v5_RotationalStiffnessX) {set_attribute_value(4, (*v5_RotationalStiffnessX)); } if (v6_RotationalStiffnessY) {set_attribute_value(5, (*v6_RotationalStiffnessY)); } if (v7_RotationalStiffnessZ) {set_attribute_value(6, (*v7_RotationalStiffnessZ)); } if (v8_WarpingStiffness) {set_attribute_value(7, (*v8_WarpingStiffness)); }; populate_derived(); }

// Function implementations for IfcBoundedCurve


// const IfcParse::entity& Ifc2x3::IfcBoundedCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[75]); }
const IfcParse::entity& Ifc2x3::IfcBoundedCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[75]); }
// Ifc2x3::IfcBoundedCurve::IfcBoundedCurve(const std::weak_ptr<InstanceData>& e) : IfcCurve(e) { }
// Ifc2x3::IfcBoundedCurve::IfcBoundedCurve() : IfcCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcBoundedSurface


// const IfcParse::entity& Ifc2x3::IfcBoundedSurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[76]); }
const IfcParse::entity& Ifc2x3::IfcBoundedSurface::Class() { return *((IfcParse::entity*)IFC2X3_types[76]); }
// Ifc2x3::IfcBoundedSurface::IfcBoundedSurface(const std::weak_ptr<InstanceData>& e) : IfcSurface(e) { }
// Ifc2x3::IfcBoundedSurface::IfcBoundedSurface() : IfcSurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcBoundingBox
::Ifc2x3::IfcCartesianPoint Ifc2x3::IfcBoundingBox::Corner() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCartesianPoint>(); }
void Ifc2x3::IfcBoundingBox::setCorner(const ::Ifc2x3::IfcCartesianPoint& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcBoundingBox::XDim() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcBoundingBox::setXDim(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcBoundingBox::YDim() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcBoundingBox::setYDim(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcBoundingBox::ZDim() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcBoundingBox::setZDim(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcBoundingBox::declaration() const { return *((IfcParse::entity*)IFC2X3_types[77]); }
const IfcParse::entity& Ifc2x3::IfcBoundingBox::Class() { return *((IfcParse::entity*)IFC2X3_types[77]); }
// Ifc2x3::IfcBoundingBox::IfcBoundingBox(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcBoundingBox::IfcBoundingBox(::Ifc2x3::IfcCartesianPoint v1_Corner, double v2_XDim, double v3_YDim, double v4_ZDim) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Corner));set_attribute_value(1, (v2_XDim));set_attribute_value(2, (v3_YDim));set_attribute_value(3, (v4_ZDim));; populate_derived(); }

// Function implementations for IfcBoxedHalfSpace
::Ifc2x3::IfcBoundingBox Ifc2x3::IfcBoxedHalfSpace::Enclosure() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcBoundingBox>(); }
void Ifc2x3::IfcBoxedHalfSpace::setEnclosure(const ::Ifc2x3::IfcBoundingBox& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcBoxedHalfSpace::declaration() const { return *((IfcParse::entity*)IFC2X3_types[79]); }
const IfcParse::entity& Ifc2x3::IfcBoxedHalfSpace::Class() { return *((IfcParse::entity*)IFC2X3_types[79]); }
// Ifc2x3::IfcBoxedHalfSpace::IfcBoxedHalfSpace(const std::weak_ptr<InstanceData>& e) : IfcHalfSpaceSolid(e) { }
// Ifc2x3::IfcBoxedHalfSpace::IfcBoxedHalfSpace(::Ifc2x3::IfcSurface v1_BaseSurface, bool v2_AgreementFlag, ::Ifc2x3::IfcBoundingBox v3_Enclosure) : IfcHalfSpaceSolid(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_BaseSurface));set_attribute_value(1, (v2_AgreementFlag));set_attribute_value(2, (v3_Enclosure));; populate_derived(); }

// Function implementations for IfcBuilding
std::optional< double > Ifc2x3::IfcBuilding::ElevationOfRefHeight() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcBuilding::setElevationOfRefHeight(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcBuilding::ElevationOfTerrain() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcBuilding::setElevationOfTerrain(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
::Ifc2x3::IfcPostalAddress Ifc2x3::IfcBuilding::BuildingAddress() const { if(get_attribute_value(11).isNull()) { return ::Ifc2x3::IfcPostalAddress{}; } return ((express::Base)(get_attribute_value(11))).as<::Ifc2x3::IfcPostalAddress>(); }
void Ifc2x3::IfcBuilding::setBuildingAddress(const ::Ifc2x3::IfcPostalAddress& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }


// const IfcParse::entity& Ifc2x3::IfcBuilding::declaration() const { return *((IfcParse::entity*)IFC2X3_types[82]); }
const IfcParse::entity& Ifc2x3::IfcBuilding::Class() { return *((IfcParse::entity*)IFC2X3_types[82]); }
// Ifc2x3::IfcBuilding::IfcBuilding(const std::weak_ptr<InstanceData>& e) : IfcSpatialStructureElement(e) { }
// Ifc2x3::IfcBuilding::IfcBuilding(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_LongName, ::Ifc2x3::IfcElementCompositionEnum::Value v9_CompositionType, std::optional< double > v10_ElevationOfRefHeight, std::optional< double > v11_ElevationOfTerrain, ::Ifc2x3::IfcPostalAddress v12_BuildingAddress) : IfcSpatialStructureElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_LongName) {set_attribute_value(7, (*v8_LongName)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(),(size_t)v9_CompositionType))); if (v10_ElevationOfRefHeight) {set_attribute_value(9, (*v10_ElevationOfRefHeight)); } if (v11_ElevationOfTerrain) {set_attribute_value(10, (*v11_ElevationOfTerrain)); } if (v12_BuildingAddress) {set_attribute_value(11, (*v12_BuildingAddress)); }; populate_derived(); }

// Function implementations for IfcBuildingElement


// const IfcParse::entity& Ifc2x3::IfcBuildingElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[83]); }
const IfcParse::entity& Ifc2x3::IfcBuildingElement::Class() { return *((IfcParse::entity*)IFC2X3_types[83]); }
// Ifc2x3::IfcBuildingElement::IfcBuildingElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcBuildingElement::IfcBuildingElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcBuildingElementComponent


// const IfcParse::entity& Ifc2x3::IfcBuildingElementComponent::declaration() const { return *((IfcParse::entity*)IFC2X3_types[84]); }
const IfcParse::entity& Ifc2x3::IfcBuildingElementComponent::Class() { return *((IfcParse::entity*)IFC2X3_types[84]); }
// Ifc2x3::IfcBuildingElementComponent::IfcBuildingElementComponent(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcBuildingElementComponent::IfcBuildingElementComponent(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcBuildingElementPart


// const IfcParse::entity& Ifc2x3::IfcBuildingElementPart::declaration() const { return *((IfcParse::entity*)IFC2X3_types[85]); }
const IfcParse::entity& Ifc2x3::IfcBuildingElementPart::Class() { return *((IfcParse::entity*)IFC2X3_types[85]); }
// Ifc2x3::IfcBuildingElementPart::IfcBuildingElementPart(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementComponent(e) { }
// Ifc2x3::IfcBuildingElementPart::IfcBuildingElementPart(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElementComponent(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcBuildingElementProxy
std::optional< ::Ifc2x3::IfcElementCompositionEnum::Value > Ifc2x3::IfcBuildingElementProxy::CompositionType() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcElementCompositionEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcBuildingElementProxy::setCompositionType(const std::optional< ::Ifc2x3::IfcElementCompositionEnum::Value >& v) { if (v) {set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(), (size_t) *v));} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcBuildingElementProxy::declaration() const { return *((IfcParse::entity*)IFC2X3_types[86]); }
const IfcParse::entity& Ifc2x3::IfcBuildingElementProxy::Class() { return *((IfcParse::entity*)IFC2X3_types[86]); }
// Ifc2x3::IfcBuildingElementProxy::IfcBuildingElementProxy(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcBuildingElementProxy::IfcBuildingElementProxy(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< ::Ifc2x3::IfcElementCompositionEnum::Value > v9_CompositionType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_CompositionType) {set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(),(size_t)*v9_CompositionType))); }; populate_derived(); }

// Function implementations for IfcBuildingElementProxyType
::Ifc2x3::IfcBuildingElementProxyTypeEnum::Value Ifc2x3::IfcBuildingElementProxyType::PredefinedType() const {  return ::Ifc2x3::IfcBuildingElementProxyTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcBuildingElementProxyType::setPredefinedType(const ::Ifc2x3::IfcBuildingElementProxyTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcBuildingElementProxyTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcBuildingElementProxyType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[87]); }
const IfcParse::entity& Ifc2x3::IfcBuildingElementProxyType::Class() { return *((IfcParse::entity*)IFC2X3_types[87]); }
// Ifc2x3::IfcBuildingElementProxyType::IfcBuildingElementProxyType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcBuildingElementProxyType::IfcBuildingElementProxyType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcBuildingElementProxyTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcBuildingElementProxyTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcBuildingElementType


// const IfcParse::entity& Ifc2x3::IfcBuildingElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[89]); }
const IfcParse::entity& Ifc2x3::IfcBuildingElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[89]); }
// Ifc2x3::IfcBuildingElementType::IfcBuildingElementType(const std::weak_ptr<InstanceData>& e) : IfcElementType(e) { }
// Ifc2x3::IfcBuildingElementType::IfcBuildingElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcBuildingStorey
std::optional< double > Ifc2x3::IfcBuildingStorey::Elevation() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcBuildingStorey::setElevation(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcBuildingStorey::declaration() const { return *((IfcParse::entity*)IFC2X3_types[90]); }
const IfcParse::entity& Ifc2x3::IfcBuildingStorey::Class() { return *((IfcParse::entity*)IFC2X3_types[90]); }
// Ifc2x3::IfcBuildingStorey::IfcBuildingStorey(const std::weak_ptr<InstanceData>& e) : IfcSpatialStructureElement(e) { }
// Ifc2x3::IfcBuildingStorey::IfcBuildingStorey(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_LongName, ::Ifc2x3::IfcElementCompositionEnum::Value v9_CompositionType, std::optional< double > v10_Elevation) : IfcSpatialStructureElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_LongName) {set_attribute_value(7, (*v8_LongName)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(),(size_t)v9_CompositionType))); if (v10_Elevation) {set_attribute_value(9, (*v10_Elevation)); }; populate_derived(); }

// Function implementations for IfcCShapeProfileDef
double Ifc2x3::IfcCShapeProfileDef::Depth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcCShapeProfileDef::setDepth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcCShapeProfileDef::Width() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcCShapeProfileDef::setWidth(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcCShapeProfileDef::WallThickness() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcCShapeProfileDef::setWallThickness(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcCShapeProfileDef::Girth() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcCShapeProfileDef::setGirth(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< double > Ifc2x3::IfcCShapeProfileDef::InternalFilletRadius() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcCShapeProfileDef::setInternalFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcCShapeProfileDef::CentreOfGravityInX() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcCShapeProfileDef::setCentreOfGravityInX(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcCShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[186]); }
const IfcParse::entity& Ifc2x3::IfcCShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[186]); }
// Ifc2x3::IfcCShapeProfileDef::IfcCShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcCShapeProfileDef::IfcCShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_Depth, double v5_Width, double v6_WallThickness, double v7_Girth, std::optional< double > v8_InternalFilletRadius, std::optional< double > v9_CentreOfGravityInX) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_Depth));set_attribute_value(4, (v5_Width));set_attribute_value(5, (v6_WallThickness));set_attribute_value(6, (v7_Girth)); if (v8_InternalFilletRadius) {set_attribute_value(7, (*v8_InternalFilletRadius)); } if (v9_CentreOfGravityInX) {set_attribute_value(8, (*v9_CentreOfGravityInX)); }; populate_derived(); }

// Function implementations for IfcCableCarrierFittingType
::Ifc2x3::IfcCableCarrierFittingTypeEnum::Value Ifc2x3::IfcCableCarrierFittingType::PredefinedType() const {  return ::Ifc2x3::IfcCableCarrierFittingTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCableCarrierFittingType::setPredefinedType(const ::Ifc2x3::IfcCableCarrierFittingTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCableCarrierFittingTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCableCarrierFittingType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[91]); }
const IfcParse::entity& Ifc2x3::IfcCableCarrierFittingType::Class() { return *((IfcParse::entity*)IFC2X3_types[91]); }
// Ifc2x3::IfcCableCarrierFittingType::IfcCableCarrierFittingType(const std::weak_ptr<InstanceData>& e) : IfcFlowFittingType(e) { }
// Ifc2x3::IfcCableCarrierFittingType::IfcCableCarrierFittingType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCableCarrierFittingTypeEnum::Value v10_PredefinedType) : IfcFlowFittingType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCableCarrierFittingTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCableCarrierSegmentType
::Ifc2x3::IfcCableCarrierSegmentTypeEnum::Value Ifc2x3::IfcCableCarrierSegmentType::PredefinedType() const {  return ::Ifc2x3::IfcCableCarrierSegmentTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCableCarrierSegmentType::setPredefinedType(const ::Ifc2x3::IfcCableCarrierSegmentTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCableCarrierSegmentTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCableCarrierSegmentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[93]); }
const IfcParse::entity& Ifc2x3::IfcCableCarrierSegmentType::Class() { return *((IfcParse::entity*)IFC2X3_types[93]); }
// Ifc2x3::IfcCableCarrierSegmentType::IfcCableCarrierSegmentType(const std::weak_ptr<InstanceData>& e) : IfcFlowSegmentType(e) { }
// Ifc2x3::IfcCableCarrierSegmentType::IfcCableCarrierSegmentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCableCarrierSegmentTypeEnum::Value v10_PredefinedType) : IfcFlowSegmentType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCableCarrierSegmentTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCableSegmentType
::Ifc2x3::IfcCableSegmentTypeEnum::Value Ifc2x3::IfcCableSegmentType::PredefinedType() const {  return ::Ifc2x3::IfcCableSegmentTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCableSegmentType::setPredefinedType(const ::Ifc2x3::IfcCableSegmentTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCableSegmentTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCableSegmentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[95]); }
const IfcParse::entity& Ifc2x3::IfcCableSegmentType::Class() { return *((IfcParse::entity*)IFC2X3_types[95]); }
// Ifc2x3::IfcCableSegmentType::IfcCableSegmentType(const std::weak_ptr<InstanceData>& e) : IfcFlowSegmentType(e) { }
// Ifc2x3::IfcCableSegmentType::IfcCableSegmentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCableSegmentTypeEnum::Value v10_PredefinedType) : IfcFlowSegmentType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCableSegmentTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCalendarDate
int Ifc2x3::IfcCalendarDate::DayComponent() const {  int v = get_attribute_value(0); return v; }
void Ifc2x3::IfcCalendarDate::setDayComponent(const int& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
int Ifc2x3::IfcCalendarDate::MonthComponent() const {  int v = get_attribute_value(1); return v; }
void Ifc2x3::IfcCalendarDate::setMonthComponent(const int& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
int Ifc2x3::IfcCalendarDate::YearComponent() const {  int v = get_attribute_value(2); return v; }
void Ifc2x3::IfcCalendarDate::setYearComponent(const int& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcCalendarDate::declaration() const { return *((IfcParse::entity*)IFC2X3_types[97]); }
const IfcParse::entity& Ifc2x3::IfcCalendarDate::Class() { return *((IfcParse::entity*)IFC2X3_types[97]); }
// Ifc2x3::IfcCalendarDate::IfcCalendarDate(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcCalendarDate::IfcCalendarDate(int v1_DayComponent, int v2_MonthComponent, int v3_YearComponent) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_DayComponent));set_attribute_value(1, (v2_MonthComponent));set_attribute_value(2, (v3_YearComponent));; populate_derived(); }

// Function implementations for IfcCartesianPoint
std::vector< double > /*[1:3]*/ Ifc2x3::IfcCartesianPoint::Coordinates() const {  std::vector< double > /*[1:3]*/ v = get_attribute_value(0); return v; }
void Ifc2x3::IfcCartesianPoint::setCoordinates(const std::vector< double > /*[1:3]*/& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcCartesianPoint::declaration() const { return *((IfcParse::entity*)IFC2X3_types[98]); }
const IfcParse::entity& Ifc2x3::IfcCartesianPoint::Class() { return *((IfcParse::entity*)IFC2X3_types[98]); }
// Ifc2x3::IfcCartesianPoint::IfcCartesianPoint(const std::weak_ptr<InstanceData>& e) : IfcPoint(e) { }
// Ifc2x3::IfcCartesianPoint::IfcCartesianPoint(std::vector< double > /*[1:3]*/ v1_Coordinates) : IfcPoint(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Coordinates));; populate_derived(); }

// Function implementations for IfcCartesianTransformationOperator
::Ifc2x3::IfcDirection Ifc2x3::IfcCartesianTransformationOperator::Axis1() const { if(get_attribute_value(0).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcCartesianTransformationOperator::setAxis1(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcDirection Ifc2x3::IfcCartesianTransformationOperator::Axis2() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcCartesianTransformationOperator::setAxis2(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcCartesianPoint Ifc2x3::IfcCartesianTransformationOperator::LocalOrigin() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcCartesianPoint>(); }
void Ifc2x3::IfcCartesianTransformationOperator::setLocalOrigin(const ::Ifc2x3::IfcCartesianPoint& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::optional< double > Ifc2x3::IfcCartesianTransformationOperator::Scale() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcCartesianTransformationOperator::setScale(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator::declaration() const { return *((IfcParse::entity*)IFC2X3_types[99]); }
const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator::Class() { return *((IfcParse::entity*)IFC2X3_types[99]); }
// Ifc2x3::IfcCartesianTransformationOperator::IfcCartesianTransformationOperator(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcCartesianTransformationOperator::IfcCartesianTransformationOperator(::Ifc2x3::IfcDirection v1_Axis1, ::Ifc2x3::IfcDirection v2_Axis2, ::Ifc2x3::IfcCartesianPoint v3_LocalOrigin, std::optional< double > v4_Scale) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Axis1) {set_attribute_value(0, (*v1_Axis1)); } if (v2_Axis2) {set_attribute_value(1, (*v2_Axis2)); }set_attribute_value(2, (v3_LocalOrigin)); if (v4_Scale) {set_attribute_value(3, (*v4_Scale)); }; populate_derived(); }

// Function implementations for IfcCartesianTransformationOperator2D


// const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator2D::declaration() const { return *((IfcParse::entity*)IFC2X3_types[100]); }
const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator2D::Class() { return *((IfcParse::entity*)IFC2X3_types[100]); }
// Ifc2x3::IfcCartesianTransformationOperator2D::IfcCartesianTransformationOperator2D(const std::weak_ptr<InstanceData>& e) : IfcCartesianTransformationOperator(e) { }
// Ifc2x3::IfcCartesianTransformationOperator2D::IfcCartesianTransformationOperator2D(::Ifc2x3::IfcDirection v1_Axis1, ::Ifc2x3::IfcDirection v2_Axis2, ::Ifc2x3::IfcCartesianPoint v3_LocalOrigin, std::optional< double > v4_Scale) : IfcCartesianTransformationOperator(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Axis1) {set_attribute_value(0, (*v1_Axis1)); } if (v2_Axis2) {set_attribute_value(1, (*v2_Axis2)); }set_attribute_value(2, (v3_LocalOrigin)); if (v4_Scale) {set_attribute_value(3, (*v4_Scale)); }; populate_derived(); }

// Function implementations for IfcCartesianTransformationOperator2DnonUniform
std::optional< double > Ifc2x3::IfcCartesianTransformationOperator2DnonUniform::Scale2() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcCartesianTransformationOperator2DnonUniform::setScale2(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator2DnonUniform::declaration() const { return *((IfcParse::entity*)IFC2X3_types[101]); }
const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator2DnonUniform::Class() { return *((IfcParse::entity*)IFC2X3_types[101]); }
// Ifc2x3::IfcCartesianTransformationOperator2DnonUniform::IfcCartesianTransformationOperator2DnonUniform(const std::weak_ptr<InstanceData>& e) : IfcCartesianTransformationOperator2D(e) { }
// Ifc2x3::IfcCartesianTransformationOperator2DnonUniform::IfcCartesianTransformationOperator2DnonUniform(::Ifc2x3::IfcDirection v1_Axis1, ::Ifc2x3::IfcDirection v2_Axis2, ::Ifc2x3::IfcCartesianPoint v3_LocalOrigin, std::optional< double > v4_Scale, std::optional< double > v5_Scale2) : IfcCartesianTransformationOperator2D(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_Axis1) {set_attribute_value(0, (*v1_Axis1)); } if (v2_Axis2) {set_attribute_value(1, (*v2_Axis2)); }set_attribute_value(2, (v3_LocalOrigin)); if (v4_Scale) {set_attribute_value(3, (*v4_Scale)); } if (v5_Scale2) {set_attribute_value(4, (*v5_Scale2)); }; populate_derived(); }

// Function implementations for IfcCartesianTransformationOperator3D
::Ifc2x3::IfcDirection Ifc2x3::IfcCartesianTransformationOperator3D::Axis3() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcCartesianTransformationOperator3D::setAxis3(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator3D::declaration() const { return *((IfcParse::entity*)IFC2X3_types[102]); }
const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator3D::Class() { return *((IfcParse::entity*)IFC2X3_types[102]); }
// Ifc2x3::IfcCartesianTransformationOperator3D::IfcCartesianTransformationOperator3D(const std::weak_ptr<InstanceData>& e) : IfcCartesianTransformationOperator(e) { }
// Ifc2x3::IfcCartesianTransformationOperator3D::IfcCartesianTransformationOperator3D(::Ifc2x3::IfcDirection v1_Axis1, ::Ifc2x3::IfcDirection v2_Axis2, ::Ifc2x3::IfcCartesianPoint v3_LocalOrigin, std::optional< double > v4_Scale, ::Ifc2x3::IfcDirection v5_Axis3) : IfcCartesianTransformationOperator(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_Axis1) {set_attribute_value(0, (*v1_Axis1)); } if (v2_Axis2) {set_attribute_value(1, (*v2_Axis2)); }set_attribute_value(2, (v3_LocalOrigin)); if (v4_Scale) {set_attribute_value(3, (*v4_Scale)); } if (v5_Axis3) {set_attribute_value(4, (*v5_Axis3)); }; populate_derived(); }

// Function implementations for IfcCartesianTransformationOperator3DnonUniform
std::optional< double > Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::Scale2() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::setScale2(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::Scale3() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::setScale3(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::declaration() const { return *((IfcParse::entity*)IFC2X3_types[103]); }
const IfcParse::entity& Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::Class() { return *((IfcParse::entity*)IFC2X3_types[103]); }
// Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::IfcCartesianTransformationOperator3DnonUniform(const std::weak_ptr<InstanceData>& e) : IfcCartesianTransformationOperator3D(e) { }
// Ifc2x3::IfcCartesianTransformationOperator3DnonUniform::IfcCartesianTransformationOperator3DnonUniform(::Ifc2x3::IfcDirection v1_Axis1, ::Ifc2x3::IfcDirection v2_Axis2, ::Ifc2x3::IfcCartesianPoint v3_LocalOrigin, std::optional< double > v4_Scale, ::Ifc2x3::IfcDirection v5_Axis3, std::optional< double > v6_Scale2, std::optional< double > v7_Scale3) : IfcCartesianTransformationOperator3D(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Axis1) {set_attribute_value(0, (*v1_Axis1)); } if (v2_Axis2) {set_attribute_value(1, (*v2_Axis2)); }set_attribute_value(2, (v3_LocalOrigin)); if (v4_Scale) {set_attribute_value(3, (*v4_Scale)); } if (v5_Axis3) {set_attribute_value(4, (*v5_Axis3)); } if (v6_Scale2) {set_attribute_value(5, (*v6_Scale2)); } if (v7_Scale3) {set_attribute_value(6, (*v7_Scale3)); }; populate_derived(); }

// Function implementations for IfcCenterLineProfileDef
double Ifc2x3::IfcCenterLineProfileDef::Thickness() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcCenterLineProfileDef::setThickness(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcCenterLineProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[104]); }
const IfcParse::entity& Ifc2x3::IfcCenterLineProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[104]); }
// Ifc2x3::IfcCenterLineProfileDef::IfcCenterLineProfileDef(const std::weak_ptr<InstanceData>& e) : IfcArbitraryOpenProfileDef(e) { }
// Ifc2x3::IfcCenterLineProfileDef::IfcCenterLineProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcBoundedCurve v3_Curve, double v4_Thickness) : IfcArbitraryOpenProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Curve));set_attribute_value(3, (v4_Thickness));; populate_derived(); }

// Function implementations for IfcChamferEdgeFeature
std::optional< double > Ifc2x3::IfcChamferEdgeFeature::Width() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcChamferEdgeFeature::setWidth(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcChamferEdgeFeature::Height() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcChamferEdgeFeature::setHeight(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }


// const IfcParse::entity& Ifc2x3::IfcChamferEdgeFeature::declaration() const { return *((IfcParse::entity*)IFC2X3_types[105]); }
const IfcParse::entity& Ifc2x3::IfcChamferEdgeFeature::Class() { return *((IfcParse::entity*)IFC2X3_types[105]); }
// Ifc2x3::IfcChamferEdgeFeature::IfcChamferEdgeFeature(const std::weak_ptr<InstanceData>& e) : IfcEdgeFeature(e) { }
// Ifc2x3::IfcChamferEdgeFeature::IfcChamferEdgeFeature(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< double > v9_FeatureLength, std::optional< double > v10_Width, std::optional< double > v11_Height) : IfcEdgeFeature(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_FeatureLength) {set_attribute_value(8, (*v9_FeatureLength)); } if (v10_Width) {set_attribute_value(9, (*v10_Width)); } if (v11_Height) {set_attribute_value(10, (*v11_Height)); }; populate_derived(); }

// Function implementations for IfcChillerType
::Ifc2x3::IfcChillerTypeEnum::Value Ifc2x3::IfcChillerType::PredefinedType() const {  return ::Ifc2x3::IfcChillerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcChillerType::setPredefinedType(const ::Ifc2x3::IfcChillerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcChillerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcChillerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[108]); }
const IfcParse::entity& Ifc2x3::IfcChillerType::Class() { return *((IfcParse::entity*)IFC2X3_types[108]); }
// Ifc2x3::IfcChillerType::IfcChillerType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcChillerType::IfcChillerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcChillerTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcChillerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCircle
double Ifc2x3::IfcCircle::Radius() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcCircle::setRadius(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcCircle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[110]); }
const IfcParse::entity& Ifc2x3::IfcCircle::Class() { return *((IfcParse::entity*)IFC2X3_types[110]); }
// Ifc2x3::IfcCircle::IfcCircle(const std::weak_ptr<InstanceData>& e) : IfcConic(e) { }
// Ifc2x3::IfcCircle::IfcCircle(::Ifc2x3::IfcAxis2Placement v1_Position, double v2_Radius) : IfcConic(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Position));set_attribute_value(1, (v2_Radius));; populate_derived(); }

// Function implementations for IfcCircleHollowProfileDef
double Ifc2x3::IfcCircleHollowProfileDef::WallThickness() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcCircleHollowProfileDef::setWallThickness(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcCircleHollowProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[111]); }
const IfcParse::entity& Ifc2x3::IfcCircleHollowProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[111]); }
// Ifc2x3::IfcCircleHollowProfileDef::IfcCircleHollowProfileDef(const std::weak_ptr<InstanceData>& e) : IfcCircleProfileDef(e) { }
// Ifc2x3::IfcCircleHollowProfileDef::IfcCircleHollowProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_Radius, double v5_WallThickness) : IfcCircleProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_Radius));set_attribute_value(4, (v5_WallThickness));; populate_derived(); }

// Function implementations for IfcCircleProfileDef
double Ifc2x3::IfcCircleProfileDef::Radius() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcCircleProfileDef::setRadius(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcCircleProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[112]); }
const IfcParse::entity& Ifc2x3::IfcCircleProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[112]); }
// Ifc2x3::IfcCircleProfileDef::IfcCircleProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcCircleProfileDef::IfcCircleProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_Radius) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_Radius));; populate_derived(); }

// Function implementations for IfcClassification
std::string Ifc2x3::IfcClassification::Source() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcClassification::setSource(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::string Ifc2x3::IfcClassification::Edition() const {  std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcClassification::setEdition(const std::string& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcCalendarDate Ifc2x3::IfcClassification::EditionDate() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcCalendarDate{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcCalendarDate>(); }
void Ifc2x3::IfcClassification::setEditionDate(const ::Ifc2x3::IfcCalendarDate& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::string Ifc2x3::IfcClassification::Name() const {  std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcClassification::setName(const std::string& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }

std::vector<::Ifc2x3::IfcClassificationItem> Ifc2x3::IfcClassification::Contains() const { return cast_vector<IfcClassificationItem>(file()->getInverse(data()->id(), IFC2X3_types[114], 1)); }

// const IfcParse::entity& Ifc2x3::IfcClassification::declaration() const { return *((IfcParse::entity*)IFC2X3_types[113]); }
const IfcParse::entity& Ifc2x3::IfcClassification::Class() { return *((IfcParse::entity*)IFC2X3_types[113]); }
// Ifc2x3::IfcClassification::IfcClassification(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcClassification::IfcClassification(std::string v1_Source, std::string v2_Edition, ::Ifc2x3::IfcCalendarDate v3_EditionDate, std::string v4_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Source));set_attribute_value(1, (v2_Edition)); if (v3_EditionDate) {set_attribute_value(2, (*v3_EditionDate)); }set_attribute_value(3, (v4_Name));; populate_derived(); }

// Function implementations for IfcClassificationItem
::Ifc2x3::IfcClassificationNotationFacet Ifc2x3::IfcClassificationItem::Notation() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcClassificationNotationFacet>(); }
void Ifc2x3::IfcClassificationItem::setNotation(const ::Ifc2x3::IfcClassificationNotationFacet& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcClassification Ifc2x3::IfcClassificationItem::ItemOf() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcClassification{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcClassification>(); }
void Ifc2x3::IfcClassificationItem::setItemOf(const ::Ifc2x3::IfcClassification& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::string Ifc2x3::IfcClassificationItem::Title() const {  std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcClassificationItem::setTitle(const std::string& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }

std::vector<::Ifc2x3::IfcClassificationItemRelationship> Ifc2x3::IfcClassificationItem::IsClassifiedItemIn() const { return cast_vector<IfcClassificationItemRelationship>(file()->getInverse(data()->id(), IFC2X3_types[115], 1)); }
std::vector<::Ifc2x3::IfcClassificationItemRelationship> Ifc2x3::IfcClassificationItem::IsClassifyingItemIn() const { return cast_vector<IfcClassificationItemRelationship>(file()->getInverse(data()->id(), IFC2X3_types[115], 0)); }

// const IfcParse::entity& Ifc2x3::IfcClassificationItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[114]); }
const IfcParse::entity& Ifc2x3::IfcClassificationItem::Class() { return *((IfcParse::entity*)IFC2X3_types[114]); }
// Ifc2x3::IfcClassificationItem::IfcClassificationItem(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcClassificationItem::IfcClassificationItem(::Ifc2x3::IfcClassificationNotationFacet v1_Notation, ::Ifc2x3::IfcClassification v2_ItemOf, std::string v3_Title) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Notation)); if (v2_ItemOf) {set_attribute_value(1, (*v2_ItemOf)); }set_attribute_value(2, (v3_Title));; populate_derived(); }

// Function implementations for IfcClassificationItemRelationship
::Ifc2x3::IfcClassificationItem Ifc2x3::IfcClassificationItemRelationship::RelatingItem() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcClassificationItem>(); }
void Ifc2x3::IfcClassificationItemRelationship::setRelatingItem(const ::Ifc2x3::IfcClassificationItem& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcClassificationItem > Ifc2x3::IfcClassificationItemRelationship::RelatedItems() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcClassificationItem>(es); }
void Ifc2x3::IfcClassificationItemRelationship::setRelatedItems(const std::vector< ::Ifc2x3::IfcClassificationItem >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcClassificationItemRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[115]); }
const IfcParse::entity& Ifc2x3::IfcClassificationItemRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[115]); }
// Ifc2x3::IfcClassificationItemRelationship::IfcClassificationItemRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcClassificationItemRelationship::IfcClassificationItemRelationship(::Ifc2x3::IfcClassificationItem v1_RelatingItem, std::vector< ::Ifc2x3::IfcClassificationItem > v2_RelatedItems) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_RelatingItem));set_attribute_value(1, (v2_RelatedItems)->generalize());; populate_derived(); }

// Function implementations for IfcClassificationNotation
std::vector< ::Ifc2x3::IfcClassificationNotationFacet > Ifc2x3::IfcClassificationNotation::NotationFacets() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcClassificationNotationFacet>(es); }
void Ifc2x3::IfcClassificationNotation::setNotationFacets(const std::vector< ::Ifc2x3::IfcClassificationNotationFacet >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcClassificationNotation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[116]); }
const IfcParse::entity& Ifc2x3::IfcClassificationNotation::Class() { return *((IfcParse::entity*)IFC2X3_types[116]); }
// Ifc2x3::IfcClassificationNotation::IfcClassificationNotation(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcClassificationNotation::IfcClassificationNotation(std::vector< ::Ifc2x3::IfcClassificationNotationFacet > v1_NotationFacets) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_NotationFacets)->generalize());; populate_derived(); }

// Function implementations for IfcClassificationNotationFacet
std::string Ifc2x3::IfcClassificationNotationFacet::NotationValue() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcClassificationNotationFacet::setNotationValue(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcClassificationNotationFacet::declaration() const { return *((IfcParse::entity*)IFC2X3_types[117]); }
const IfcParse::entity& Ifc2x3::IfcClassificationNotationFacet::Class() { return *((IfcParse::entity*)IFC2X3_types[117]); }
// Ifc2x3::IfcClassificationNotationFacet::IfcClassificationNotationFacet(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcClassificationNotationFacet::IfcClassificationNotationFacet(std::string v1_NotationValue) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_NotationValue));; populate_derived(); }

// Function implementations for IfcClassificationReference
::Ifc2x3::IfcClassification Ifc2x3::IfcClassificationReference::ReferencedSource() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcClassification{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcClassification>(); }
void Ifc2x3::IfcClassificationReference::setReferencedSource(const ::Ifc2x3::IfcClassification& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcClassificationReference::declaration() const { return *((IfcParse::entity*)IFC2X3_types[119]); }
const IfcParse::entity& Ifc2x3::IfcClassificationReference::Class() { return *((IfcParse::entity*)IFC2X3_types[119]); }
// Ifc2x3::IfcClassificationReference::IfcClassificationReference(const std::weak_ptr<InstanceData>& e) : IfcExternalReference(e) { }
// Ifc2x3::IfcClassificationReference::IfcClassificationReference(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name, ::Ifc2x3::IfcClassification v4_ReferencedSource) : IfcExternalReference(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_ReferencedSource) {set_attribute_value(3, (*v4_ReferencedSource)); }; populate_derived(); }

// Function implementations for IfcClosedShell


// const IfcParse::entity& Ifc2x3::IfcClosedShell::declaration() const { return *((IfcParse::entity*)IFC2X3_types[120]); }
const IfcParse::entity& Ifc2x3::IfcClosedShell::Class() { return *((IfcParse::entity*)IFC2X3_types[120]); }
// Ifc2x3::IfcClosedShell::IfcClosedShell(const std::weak_ptr<InstanceData>& e) : IfcConnectedFaceSet(e) { }
// Ifc2x3::IfcClosedShell::IfcClosedShell(std::vector< ::Ifc2x3::IfcFace > v1_CfsFaces) : IfcConnectedFaceSet(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_CfsFaces)->generalize());; populate_derived(); }

// Function implementations for IfcCoilType
::Ifc2x3::IfcCoilTypeEnum::Value Ifc2x3::IfcCoilType::PredefinedType() const {  return ::Ifc2x3::IfcCoilTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCoilType::setPredefinedType(const ::Ifc2x3::IfcCoilTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCoilTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCoilType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[121]); }
const IfcParse::entity& Ifc2x3::IfcCoilType::Class() { return *((IfcParse::entity*)IFC2X3_types[121]); }
// Ifc2x3::IfcCoilType::IfcCoilType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcCoilType::IfcCoilType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCoilTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCoilTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcColourRgb
double Ifc2x3::IfcColourRgb::Red() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcColourRgb::setRed(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcColourRgb::Green() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcColourRgb::setGreen(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcColourRgb::Blue() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcColourRgb::setBlue(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcColourRgb::declaration() const { return *((IfcParse::entity*)IFC2X3_types[125]); }
const IfcParse::entity& Ifc2x3::IfcColourRgb::Class() { return *((IfcParse::entity*)IFC2X3_types[125]); }
// Ifc2x3::IfcColourRgb::IfcColourRgb(const std::weak_ptr<InstanceData>& e) : IfcColourSpecification(e) { }
// Ifc2x3::IfcColourRgb::IfcColourRgb(std::optional< std::string > v1_Name, double v2_Red, double v3_Green, double v4_Blue) : IfcColourSpecification(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_Red));set_attribute_value(2, (v3_Green));set_attribute_value(3, (v4_Blue));; populate_derived(); }

// Function implementations for IfcColourSpecification
std::optional< std::string > Ifc2x3::IfcColourSpecification::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcColourSpecification::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }


// const IfcParse::entity& Ifc2x3::IfcColourSpecification::declaration() const { return *((IfcParse::entity*)IFC2X3_types[126]); }
const IfcParse::entity& Ifc2x3::IfcColourSpecification::Class() { return *((IfcParse::entity*)IFC2X3_types[126]); }
// Ifc2x3::IfcColourSpecification::IfcColourSpecification(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcColourSpecification::IfcColourSpecification(std::optional< std::string > v1_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }; populate_derived(); }

// Function implementations for IfcColumn


// const IfcParse::entity& Ifc2x3::IfcColumn::declaration() const { return *((IfcParse::entity*)IFC2X3_types[127]); }
const IfcParse::entity& Ifc2x3::IfcColumn::Class() { return *((IfcParse::entity*)IFC2X3_types[127]); }
// Ifc2x3::IfcColumn::IfcColumn(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcColumn::IfcColumn(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcColumnType
::Ifc2x3::IfcColumnTypeEnum::Value Ifc2x3::IfcColumnType::PredefinedType() const {  return ::Ifc2x3::IfcColumnTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcColumnType::setPredefinedType(const ::Ifc2x3::IfcColumnTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcColumnTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcColumnType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[128]); }
const IfcParse::entity& Ifc2x3::IfcColumnType::Class() { return *((IfcParse::entity*)IFC2X3_types[128]); }
// Ifc2x3::IfcColumnType::IfcColumnType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcColumnType::IfcColumnType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcColumnTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcColumnTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcComplexProperty
std::string Ifc2x3::IfcComplexProperty::UsageName() const {  std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcComplexProperty::setUsageName(const std::string& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::vector< ::Ifc2x3::IfcProperty > Ifc2x3::IfcComplexProperty::HasProperties() const {  std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcProperty>(es); }
void Ifc2x3::IfcComplexProperty::setHasProperties(const std::vector< ::Ifc2x3::IfcProperty >& v) { set_attribute_value(3, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcComplexProperty::declaration() const { return *((IfcParse::entity*)IFC2X3_types[131]); }
const IfcParse::entity& Ifc2x3::IfcComplexProperty::Class() { return *((IfcParse::entity*)IFC2X3_types[131]); }
// Ifc2x3::IfcComplexProperty::IfcComplexProperty(const std::weak_ptr<InstanceData>& e) : IfcProperty(e) { }
// Ifc2x3::IfcComplexProperty::IfcComplexProperty(std::string v1_Name, std::optional< std::string > v2_Description, std::string v3_UsageName, std::vector< ::Ifc2x3::IfcProperty > v4_HasProperties) : IfcProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_UsageName));set_attribute_value(3, (v4_HasProperties)->generalize());; populate_derived(); }

// Function implementations for IfcCompositeCurve
std::vector< ::Ifc2x3::IfcCompositeCurveSegment > Ifc2x3::IfcCompositeCurve::Segments() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcCompositeCurveSegment>(es); }
void Ifc2x3::IfcCompositeCurve::setSegments(const std::vector< ::Ifc2x3::IfcCompositeCurveSegment >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
boost::logic::tribool Ifc2x3::IfcCompositeCurve::SelfIntersect() const {  boost::logic::tribool v = get_attribute_value(1); return v; }
void Ifc2x3::IfcCompositeCurve::setSelfIntersect(const boost::logic::tribool& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcCompositeCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[132]); }
const IfcParse::entity& Ifc2x3::IfcCompositeCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[132]); }
// Ifc2x3::IfcCompositeCurve::IfcCompositeCurve(const std::weak_ptr<InstanceData>& e) : IfcBoundedCurve(e) { }
// Ifc2x3::IfcCompositeCurve::IfcCompositeCurve(std::vector< ::Ifc2x3::IfcCompositeCurveSegment > v1_Segments, boost::logic::tribool v2_SelfIntersect) : IfcBoundedCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Segments)->generalize());set_attribute_value(1, (v2_SelfIntersect));; populate_derived(); }

// Function implementations for IfcCompositeCurveSegment
::Ifc2x3::IfcTransitionCode::Value Ifc2x3::IfcCompositeCurveSegment::Transition() const {  return ::Ifc2x3::IfcTransitionCode::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcCompositeCurveSegment::setTransition(const ::Ifc2x3::IfcTransitionCode::Value& v) { set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcTransitionCode::Class(), (size_t) v));if constexpr (false)unset_attribute_value(0); }
bool Ifc2x3::IfcCompositeCurveSegment::SameSense() const {  bool v = get_attribute_value(1); return v; }
void Ifc2x3::IfcCompositeCurveSegment::setSameSense(const bool& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcCurve Ifc2x3::IfcCompositeCurveSegment::ParentCurve() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcCompositeCurveSegment::setParentCurve(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }

std::vector<::Ifc2x3::IfcCompositeCurve> Ifc2x3::IfcCompositeCurveSegment::UsingCurves() const { return cast_vector<IfcCompositeCurve>(file()->getInverse(data()->id(), IFC2X3_types[132], 0)); }

// const IfcParse::entity& Ifc2x3::IfcCompositeCurveSegment::declaration() const { return *((IfcParse::entity*)IFC2X3_types[133]); }
const IfcParse::entity& Ifc2x3::IfcCompositeCurveSegment::Class() { return *((IfcParse::entity*)IFC2X3_types[133]); }
// Ifc2x3::IfcCompositeCurveSegment::IfcCompositeCurveSegment(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcCompositeCurveSegment::IfcCompositeCurveSegment(::Ifc2x3::IfcTransitionCode::Value v1_Transition, bool v2_SameSense, ::Ifc2x3::IfcCurve v3_ParentCurve) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcTransitionCode::Class(),(size_t)v1_Transition)));set_attribute_value(1, (v2_SameSense));set_attribute_value(2, (v3_ParentCurve));; populate_derived(); }

// Function implementations for IfcCompositeProfileDef
std::vector< ::Ifc2x3::IfcProfileDef > Ifc2x3::IfcCompositeProfileDef::Profiles() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcProfileDef>(es); }
void Ifc2x3::IfcCompositeProfileDef::setProfiles(const std::vector< ::Ifc2x3::IfcProfileDef >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }
std::optional< std::string > Ifc2x3::IfcCompositeProfileDef::Label() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcCompositeProfileDef::setLabel(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcCompositeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[134]); }
const IfcParse::entity& Ifc2x3::IfcCompositeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[134]); }
// Ifc2x3::IfcCompositeProfileDef::IfcCompositeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcProfileDef(e) { }
// Ifc2x3::IfcCompositeProfileDef::IfcCompositeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, std::vector< ::Ifc2x3::IfcProfileDef > v3_Profiles, std::optional< std::string > v4_Label) : IfcProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Profiles)->generalize()); if (v4_Label) {set_attribute_value(3, (*v4_Label)); }; populate_derived(); }

// Function implementations for IfcCompressorType
::Ifc2x3::IfcCompressorTypeEnum::Value Ifc2x3::IfcCompressorType::PredefinedType() const {  return ::Ifc2x3::IfcCompressorTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCompressorType::setPredefinedType(const ::Ifc2x3::IfcCompressorTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCompressorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCompressorType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[136]); }
const IfcParse::entity& Ifc2x3::IfcCompressorType::Class() { return *((IfcParse::entity*)IFC2X3_types[136]); }
// Ifc2x3::IfcCompressorType::IfcCompressorType(const std::weak_ptr<InstanceData>& e) : IfcFlowMovingDeviceType(e) { }
// Ifc2x3::IfcCompressorType::IfcCompressorType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCompressorTypeEnum::Value v10_PredefinedType) : IfcFlowMovingDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCompressorTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCondenserType
::Ifc2x3::IfcCondenserTypeEnum::Value Ifc2x3::IfcCondenserType::PredefinedType() const {  return ::Ifc2x3::IfcCondenserTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCondenserType::setPredefinedType(const ::Ifc2x3::IfcCondenserTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCondenserTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCondenserType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[138]); }
const IfcParse::entity& Ifc2x3::IfcCondenserType::Class() { return *((IfcParse::entity*)IFC2X3_types[138]); }
// Ifc2x3::IfcCondenserType::IfcCondenserType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcCondenserType::IfcCondenserType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCondenserTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCondenserTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCondition


// const IfcParse::entity& Ifc2x3::IfcCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[140]); }
const IfcParse::entity& Ifc2x3::IfcCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[140]); }
// Ifc2x3::IfcCondition::IfcCondition(const std::weak_ptr<InstanceData>& e) : IfcGroup(e) { }
// Ifc2x3::IfcCondition::IfcCondition(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcGroup(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcConditionCriterion
::Ifc2x3::IfcConditionCriterionSelect Ifc2x3::IfcConditionCriterion::Criterion() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcConditionCriterionSelect>(); }
void Ifc2x3::IfcConditionCriterion::setCriterion(const ::Ifc2x3::IfcConditionCriterionSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcConditionCriterion::CriterionDateTime() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcConditionCriterion::setCriterionDateTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcConditionCriterion::declaration() const { return *((IfcParse::entity*)IFC2X3_types[141]); }
const IfcParse::entity& Ifc2x3::IfcConditionCriterion::Class() { return *((IfcParse::entity*)IFC2X3_types[141]); }
// Ifc2x3::IfcConditionCriterion::IfcConditionCriterion(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcConditionCriterion::IfcConditionCriterion(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcConditionCriterionSelect v6_Criterion, ::Ifc2x3::IfcDateTimeSelect v7_CriterionDateTime) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_Criterion));set_attribute_value(6, (v7_CriterionDateTime));; populate_derived(); }

// Function implementations for IfcConic
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcConic::Position() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcConic::setPosition(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcConic::declaration() const { return *((IfcParse::entity*)IFC2X3_types[143]); }
const IfcParse::entity& Ifc2x3::IfcConic::Class() { return *((IfcParse::entity*)IFC2X3_types[143]); }
// Ifc2x3::IfcConic::IfcConic(const std::weak_ptr<InstanceData>& e) : IfcCurve(e) { }
// Ifc2x3::IfcConic::IfcConic(::Ifc2x3::IfcAxis2Placement v1_Position) : IfcCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Position));; populate_derived(); }

// Function implementations for IfcConnectedFaceSet
std::vector< ::Ifc2x3::IfcFace > Ifc2x3::IfcConnectedFaceSet::CfsFaces() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcFace>(es); }
void Ifc2x3::IfcConnectedFaceSet::setCfsFaces(const std::vector< ::Ifc2x3::IfcFace >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcConnectedFaceSet::declaration() const { return *((IfcParse::entity*)IFC2X3_types[144]); }
const IfcParse::entity& Ifc2x3::IfcConnectedFaceSet::Class() { return *((IfcParse::entity*)IFC2X3_types[144]); }
// Ifc2x3::IfcConnectedFaceSet::IfcConnectedFaceSet(const std::weak_ptr<InstanceData>& e) : IfcTopologicalRepresentationItem(e) { }
// Ifc2x3::IfcConnectedFaceSet::IfcConnectedFaceSet(std::vector< ::Ifc2x3::IfcFace > v1_CfsFaces) : IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_CfsFaces)->generalize());; populate_derived(); }

// Function implementations for IfcConnectionCurveGeometry
::Ifc2x3::IfcCurveOrEdgeCurve Ifc2x3::IfcConnectionCurveGeometry::CurveOnRelatingElement() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurveOrEdgeCurve>(); }
void Ifc2x3::IfcConnectionCurveGeometry::setCurveOnRelatingElement(const ::Ifc2x3::IfcCurveOrEdgeCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcCurveOrEdgeCurve Ifc2x3::IfcConnectionCurveGeometry::CurveOnRelatedElement() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcCurveOrEdgeCurve{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCurveOrEdgeCurve>(); }
void Ifc2x3::IfcConnectionCurveGeometry::setCurveOnRelatedElement(const ::Ifc2x3::IfcCurveOrEdgeCurve& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcConnectionCurveGeometry::declaration() const { return *((IfcParse::entity*)IFC2X3_types[145]); }
const IfcParse::entity& Ifc2x3::IfcConnectionCurveGeometry::Class() { return *((IfcParse::entity*)IFC2X3_types[145]); }
// Ifc2x3::IfcConnectionCurveGeometry::IfcConnectionCurveGeometry(const std::weak_ptr<InstanceData>& e) : IfcConnectionGeometry(e) { }
// Ifc2x3::IfcConnectionCurveGeometry::IfcConnectionCurveGeometry(::Ifc2x3::IfcCurveOrEdgeCurve v1_CurveOnRelatingElement, ::Ifc2x3::IfcCurveOrEdgeCurve v2_CurveOnRelatedElement) : IfcConnectionGeometry(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_CurveOnRelatingElement)); if (v2_CurveOnRelatedElement) {set_attribute_value(1, (*v2_CurveOnRelatedElement)); }; populate_derived(); }

// Function implementations for IfcConnectionGeometry


// const IfcParse::entity& Ifc2x3::IfcConnectionGeometry::declaration() const { return *((IfcParse::entity*)IFC2X3_types[146]); }
const IfcParse::entity& Ifc2x3::IfcConnectionGeometry::Class() { return *((IfcParse::entity*)IFC2X3_types[146]); }
// Ifc2x3::IfcConnectionGeometry::IfcConnectionGeometry(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcConnectionGeometry::IfcConnectionGeometry() : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcConnectionPointEccentricity
std::optional< double > Ifc2x3::IfcConnectionPointEccentricity::EccentricityInX() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcConnectionPointEccentricity::setEccentricityInX(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcConnectionPointEccentricity::EccentricityInY() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcConnectionPointEccentricity::setEccentricityInY(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcConnectionPointEccentricity::EccentricityInZ() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcConnectionPointEccentricity::setEccentricityInZ(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcConnectionPointEccentricity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[147]); }
const IfcParse::entity& Ifc2x3::IfcConnectionPointEccentricity::Class() { return *((IfcParse::entity*)IFC2X3_types[147]); }
// Ifc2x3::IfcConnectionPointEccentricity::IfcConnectionPointEccentricity(const std::weak_ptr<InstanceData>& e) : IfcConnectionPointGeometry(e) { }
// Ifc2x3::IfcConnectionPointEccentricity::IfcConnectionPointEccentricity(::Ifc2x3::IfcPointOrVertexPoint v1_PointOnRelatingElement, ::Ifc2x3::IfcPointOrVertexPoint v2_PointOnRelatedElement, std::optional< double > v3_EccentricityInX, std::optional< double > v4_EccentricityInY, std::optional< double > v5_EccentricityInZ) : IfcConnectionPointGeometry(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_PointOnRelatingElement)); if (v2_PointOnRelatedElement) {set_attribute_value(1, (*v2_PointOnRelatedElement)); } if (v3_EccentricityInX) {set_attribute_value(2, (*v3_EccentricityInX)); } if (v4_EccentricityInY) {set_attribute_value(3, (*v4_EccentricityInY)); } if (v5_EccentricityInZ) {set_attribute_value(4, (*v5_EccentricityInZ)); }; populate_derived(); }

// Function implementations for IfcConnectionPointGeometry
::Ifc2x3::IfcPointOrVertexPoint Ifc2x3::IfcConnectionPointGeometry::PointOnRelatingElement() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcPointOrVertexPoint>(); }
void Ifc2x3::IfcConnectionPointGeometry::setPointOnRelatingElement(const ::Ifc2x3::IfcPointOrVertexPoint& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcPointOrVertexPoint Ifc2x3::IfcConnectionPointGeometry::PointOnRelatedElement() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcPointOrVertexPoint{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcPointOrVertexPoint>(); }
void Ifc2x3::IfcConnectionPointGeometry::setPointOnRelatedElement(const ::Ifc2x3::IfcPointOrVertexPoint& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcConnectionPointGeometry::declaration() const { return *((IfcParse::entity*)IFC2X3_types[148]); }
const IfcParse::entity& Ifc2x3::IfcConnectionPointGeometry::Class() { return *((IfcParse::entity*)IFC2X3_types[148]); }
// Ifc2x3::IfcConnectionPointGeometry::IfcConnectionPointGeometry(const std::weak_ptr<InstanceData>& e) : IfcConnectionGeometry(e) { }
// Ifc2x3::IfcConnectionPointGeometry::IfcConnectionPointGeometry(::Ifc2x3::IfcPointOrVertexPoint v1_PointOnRelatingElement, ::Ifc2x3::IfcPointOrVertexPoint v2_PointOnRelatedElement) : IfcConnectionGeometry(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_PointOnRelatingElement)); if (v2_PointOnRelatedElement) {set_attribute_value(1, (*v2_PointOnRelatedElement)); }; populate_derived(); }

// Function implementations for IfcConnectionPortGeometry
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcConnectionPortGeometry::LocationAtRelatingElement() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcConnectionPortGeometry::setLocationAtRelatingElement(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcConnectionPortGeometry::LocationAtRelatedElement() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcAxis2Placement{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcConnectionPortGeometry::setLocationAtRelatedElement(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcProfileDef Ifc2x3::IfcConnectionPortGeometry::ProfileOfPort() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcProfileDef>(); }
void Ifc2x3::IfcConnectionPortGeometry::setProfileOfPort(const ::Ifc2x3::IfcProfileDef& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcConnectionPortGeometry::declaration() const { return *((IfcParse::entity*)IFC2X3_types[149]); }
const IfcParse::entity& Ifc2x3::IfcConnectionPortGeometry::Class() { return *((IfcParse::entity*)IFC2X3_types[149]); }
// Ifc2x3::IfcConnectionPortGeometry::IfcConnectionPortGeometry(const std::weak_ptr<InstanceData>& e) : IfcConnectionGeometry(e) { }
// Ifc2x3::IfcConnectionPortGeometry::IfcConnectionPortGeometry(::Ifc2x3::IfcAxis2Placement v1_LocationAtRelatingElement, ::Ifc2x3::IfcAxis2Placement v2_LocationAtRelatedElement, ::Ifc2x3::IfcProfileDef v3_ProfileOfPort) : IfcConnectionGeometry(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_LocationAtRelatingElement)); if (v2_LocationAtRelatedElement) {set_attribute_value(1, (*v2_LocationAtRelatedElement)); }set_attribute_value(2, (v3_ProfileOfPort));; populate_derived(); }

// Function implementations for IfcConnectionSurfaceGeometry
::Ifc2x3::IfcSurfaceOrFaceSurface Ifc2x3::IfcConnectionSurfaceGeometry::SurfaceOnRelatingElement() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcSurfaceOrFaceSurface>(); }
void Ifc2x3::IfcConnectionSurfaceGeometry::setSurfaceOnRelatingElement(const ::Ifc2x3::IfcSurfaceOrFaceSurface& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcSurfaceOrFaceSurface Ifc2x3::IfcConnectionSurfaceGeometry::SurfaceOnRelatedElement() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcSurfaceOrFaceSurface{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcSurfaceOrFaceSurface>(); }
void Ifc2x3::IfcConnectionSurfaceGeometry::setSurfaceOnRelatedElement(const ::Ifc2x3::IfcSurfaceOrFaceSurface& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcConnectionSurfaceGeometry::declaration() const { return *((IfcParse::entity*)IFC2X3_types[150]); }
const IfcParse::entity& Ifc2x3::IfcConnectionSurfaceGeometry::Class() { return *((IfcParse::entity*)IFC2X3_types[150]); }
// Ifc2x3::IfcConnectionSurfaceGeometry::IfcConnectionSurfaceGeometry(const std::weak_ptr<InstanceData>& e) : IfcConnectionGeometry(e) { }
// Ifc2x3::IfcConnectionSurfaceGeometry::IfcConnectionSurfaceGeometry(::Ifc2x3::IfcSurfaceOrFaceSurface v1_SurfaceOnRelatingElement, ::Ifc2x3::IfcSurfaceOrFaceSurface v2_SurfaceOnRelatedElement) : IfcConnectionGeometry(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_SurfaceOnRelatingElement)); if (v2_SurfaceOnRelatedElement) {set_attribute_value(1, (*v2_SurfaceOnRelatedElement)); }; populate_derived(); }

// Function implementations for IfcConstraint
std::string Ifc2x3::IfcConstraint::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcConstraint::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcConstraint::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcConstraint::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcConstraintEnum::Value Ifc2x3::IfcConstraint::ConstraintGrade() const {  return ::Ifc2x3::IfcConstraintEnum::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcConstraint::setConstraintGrade(const ::Ifc2x3::IfcConstraintEnum::Value& v) { set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcConstraintEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(2); }
std::optional< std::string > Ifc2x3::IfcConstraint::ConstraintSource() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcConstraint::setConstraintSource(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
::Ifc2x3::IfcActorSelect Ifc2x3::IfcConstraint::CreatingActor() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcActorSelect{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcConstraint::setCreatingActor(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcConstraint::CreationTime() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcConstraint::setCreationTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
std::optional< std::string > Ifc2x3::IfcConstraint::UserDefinedGrade() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcConstraint::setUserDefinedGrade(const std::optional< std::string >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }

std::vector<::Ifc2x3::IfcConstraintClassificationRelationship> Ifc2x3::IfcConstraint::ClassifiedAs() const { return cast_vector<IfcConstraintClassificationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[154], 0)); }
std::vector<::Ifc2x3::IfcConstraintRelationship> Ifc2x3::IfcConstraint::RelatesConstraints() const { return cast_vector<IfcConstraintRelationship>(file()->getInverse(data()->id(), IFC2X3_types[156], 2)); }
std::vector<::Ifc2x3::IfcConstraintRelationship> Ifc2x3::IfcConstraint::IsRelatedWith() const { return cast_vector<IfcConstraintRelationship>(file()->getInverse(data()->id(), IFC2X3_types[156], 3)); }
std::vector<::Ifc2x3::IfcPropertyConstraintRelationship> Ifc2x3::IfcConstraint::PropertiesForConstraint() const { return cast_vector<IfcPropertyConstraintRelationship>(file()->getInverse(data()->id(), IFC2X3_types[617], 0)); }
std::vector<::Ifc2x3::IfcConstraintAggregationRelationship> Ifc2x3::IfcConstraint::Aggregates() const { return cast_vector<IfcConstraintAggregationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[153], 2)); }
std::vector<::Ifc2x3::IfcConstraintAggregationRelationship> Ifc2x3::IfcConstraint::IsAggregatedIn() const { return cast_vector<IfcConstraintAggregationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[153], 3)); }

// const IfcParse::entity& Ifc2x3::IfcConstraint::declaration() const { return *((IfcParse::entity*)IFC2X3_types[152]); }
const IfcParse::entity& Ifc2x3::IfcConstraint::Class() { return *((IfcParse::entity*)IFC2X3_types[152]); }
// Ifc2x3::IfcConstraint::IfcConstraint(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcConstraint::IfcConstraint(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcConstraintEnum::Value v3_ConstraintGrade, std::optional< std::string > v4_ConstraintSource, ::Ifc2x3::IfcActorSelect v5_CreatingActor, ::Ifc2x3::IfcDateTimeSelect v6_CreationTime, std::optional< std::string > v7_UserDefinedGrade) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcConstraintEnum::Class(),(size_t)v3_ConstraintGrade))); if (v4_ConstraintSource) {set_attribute_value(3, (*v4_ConstraintSource)); } if (v5_CreatingActor) {set_attribute_value(4, (*v5_CreatingActor)); } if (v6_CreationTime) {set_attribute_value(5, (*v6_CreationTime)); } if (v7_UserDefinedGrade) {set_attribute_value(6, (*v7_UserDefinedGrade)); }; populate_derived(); }

// Function implementations for IfcConstraintAggregationRelationship
std::optional< std::string > Ifc2x3::IfcConstraintAggregationRelationship::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcConstraintAggregationRelationship::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcConstraintAggregationRelationship::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcConstraintAggregationRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcConstraint Ifc2x3::IfcConstraintAggregationRelationship::RelatingConstraint() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcConstraint>(); }
void Ifc2x3::IfcConstraintAggregationRelationship::setRelatingConstraint(const ::Ifc2x3::IfcConstraint& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::vector< ::Ifc2x3::IfcConstraint > Ifc2x3::IfcConstraintAggregationRelationship::RelatedConstraints() const {  std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcConstraint>(es); }
void Ifc2x3::IfcConstraintAggregationRelationship::setRelatedConstraints(const std::vector< ::Ifc2x3::IfcConstraint >& v) { set_attribute_value(3, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcLogicalOperatorEnum::Value Ifc2x3::IfcConstraintAggregationRelationship::LogicalAggregator() const {  return ::Ifc2x3::IfcLogicalOperatorEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcConstraintAggregationRelationship::setLogicalAggregator(const ::Ifc2x3::IfcLogicalOperatorEnum::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcLogicalOperatorEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcConstraintAggregationRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[153]); }
const IfcParse::entity& Ifc2x3::IfcConstraintAggregationRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[153]); }
// Ifc2x3::IfcConstraintAggregationRelationship::IfcConstraintAggregationRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcConstraintAggregationRelationship::IfcConstraintAggregationRelationship(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcConstraint v3_RelatingConstraint, std::vector< ::Ifc2x3::IfcConstraint > v4_RelatedConstraints, ::Ifc2x3::IfcLogicalOperatorEnum::Value v5_LogicalAggregator) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_RelatingConstraint));set_attribute_value(3, (v4_RelatedConstraints)->generalize());set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcLogicalOperatorEnum::Class(),(size_t)v5_LogicalAggregator)));; populate_derived(); }

// Function implementations for IfcConstraintClassificationRelationship
::Ifc2x3::IfcConstraint Ifc2x3::IfcConstraintClassificationRelationship::ClassifiedConstraint() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcConstraint>(); }
void Ifc2x3::IfcConstraintClassificationRelationship::setClassifiedConstraint(const ::Ifc2x3::IfcConstraint& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcClassificationNotationSelect > Ifc2x3::IfcConstraintClassificationRelationship::RelatedClassifications() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcClassificationNotationSelect>(es); }
void Ifc2x3::IfcConstraintClassificationRelationship::setRelatedClassifications(const std::vector< ::Ifc2x3::IfcClassificationNotationSelect >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcConstraintClassificationRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[154]); }
const IfcParse::entity& Ifc2x3::IfcConstraintClassificationRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[154]); }
// Ifc2x3::IfcConstraintClassificationRelationship::IfcConstraintClassificationRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcConstraintClassificationRelationship::IfcConstraintClassificationRelationship(::Ifc2x3::IfcConstraint v1_ClassifiedConstraint, std::vector< ::Ifc2x3::IfcClassificationNotationSelect > v2_RelatedClassifications) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_ClassifiedConstraint));set_attribute_value(1, (v2_RelatedClassifications)->generalize());; populate_derived(); }

// Function implementations for IfcConstraintRelationship
std::optional< std::string > Ifc2x3::IfcConstraintRelationship::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcConstraintRelationship::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcConstraintRelationship::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcConstraintRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcConstraint Ifc2x3::IfcConstraintRelationship::RelatingConstraint() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcConstraint>(); }
void Ifc2x3::IfcConstraintRelationship::setRelatingConstraint(const ::Ifc2x3::IfcConstraint& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::vector< ::Ifc2x3::IfcConstraint > Ifc2x3::IfcConstraintRelationship::RelatedConstraints() const {  std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcConstraint>(es); }
void Ifc2x3::IfcConstraintRelationship::setRelatedConstraints(const std::vector< ::Ifc2x3::IfcConstraint >& v) { set_attribute_value(3, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcConstraintRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[156]); }
const IfcParse::entity& Ifc2x3::IfcConstraintRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[156]); }
// Ifc2x3::IfcConstraintRelationship::IfcConstraintRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcConstraintRelationship::IfcConstraintRelationship(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcConstraint v3_RelatingConstraint, std::vector< ::Ifc2x3::IfcConstraint > v4_RelatedConstraints) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_RelatingConstraint));set_attribute_value(3, (v4_RelatedConstraints)->generalize());; populate_derived(); }

// Function implementations for IfcConstructionEquipmentResource


// const IfcParse::entity& Ifc2x3::IfcConstructionEquipmentResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[157]); }
const IfcParse::entity& Ifc2x3::IfcConstructionEquipmentResource::Class() { return *((IfcParse::entity*)IFC2X3_types[157]); }
// Ifc2x3::IfcConstructionEquipmentResource::IfcConstructionEquipmentResource(const std::weak_ptr<InstanceData>& e) : IfcConstructionResource(e) { }
// Ifc2x3::IfcConstructionEquipmentResource::IfcConstructionEquipmentResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_ResourceIdentifier, std::optional< std::string > v7_ResourceGroup, std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > v8_ResourceConsumption, ::Ifc2x3::IfcMeasureWithUnit v9_BaseQuantity) : IfcConstructionResource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ResourceIdentifier) {set_attribute_value(5, (*v6_ResourceIdentifier)); } if (v7_ResourceGroup) {set_attribute_value(6, (*v7_ResourceGroup)); } if (v8_ResourceConsumption) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(),(size_t)*v8_ResourceConsumption))); } if (v9_BaseQuantity) {set_attribute_value(8, (*v9_BaseQuantity)); }; populate_derived(); }

// Function implementations for IfcConstructionMaterialResource
std::optional< std::vector< ::Ifc2x3::IfcActorSelect > > Ifc2x3::IfcConstructionMaterialResource::Suppliers() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(9); return cast_vector<::Ifc2x3::IfcActorSelect>(es); }
void Ifc2x3::IfcConstructionMaterialResource::setSuppliers(const std::optional< std::vector< ::Ifc2x3::IfcActorSelect > >& v) { if (v) {set_attribute_value(9, cast_vector<express::Base>(*v));} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcConstructionMaterialResource::UsageRatio() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcConstructionMaterialResource::setUsageRatio(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }


// const IfcParse::entity& Ifc2x3::IfcConstructionMaterialResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[158]); }
const IfcParse::entity& Ifc2x3::IfcConstructionMaterialResource::Class() { return *((IfcParse::entity*)IFC2X3_types[158]); }
// Ifc2x3::IfcConstructionMaterialResource::IfcConstructionMaterialResource(const std::weak_ptr<InstanceData>& e) : IfcConstructionResource(e) { }
// Ifc2x3::IfcConstructionMaterialResource::IfcConstructionMaterialResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_ResourceIdentifier, std::optional< std::string > v7_ResourceGroup, std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > v8_ResourceConsumption, ::Ifc2x3::IfcMeasureWithUnit v9_BaseQuantity, std::optional< std::vector< ::Ifc2x3::IfcActorSelect > > v10_Suppliers, std::optional< double > v11_UsageRatio) : IfcConstructionResource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ResourceIdentifier) {set_attribute_value(5, (*v6_ResourceIdentifier)); } if (v7_ResourceGroup) {set_attribute_value(6, (*v7_ResourceGroup)); } if (v8_ResourceConsumption) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(),(size_t)*v8_ResourceConsumption))); } if (v9_BaseQuantity) {set_attribute_value(8, (*v9_BaseQuantity)); } if (v10_Suppliers) {set_attribute_value(9, (*v10_Suppliers)->generalize()); } if (v11_UsageRatio) {set_attribute_value(10, (*v11_UsageRatio)); }; populate_derived(); }

// Function implementations for IfcConstructionProductResource


// const IfcParse::entity& Ifc2x3::IfcConstructionProductResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[159]); }
const IfcParse::entity& Ifc2x3::IfcConstructionProductResource::Class() { return *((IfcParse::entity*)IFC2X3_types[159]); }
// Ifc2x3::IfcConstructionProductResource::IfcConstructionProductResource(const std::weak_ptr<InstanceData>& e) : IfcConstructionResource(e) { }
// Ifc2x3::IfcConstructionProductResource::IfcConstructionProductResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_ResourceIdentifier, std::optional< std::string > v7_ResourceGroup, std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > v8_ResourceConsumption, ::Ifc2x3::IfcMeasureWithUnit v9_BaseQuantity) : IfcConstructionResource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ResourceIdentifier) {set_attribute_value(5, (*v6_ResourceIdentifier)); } if (v7_ResourceGroup) {set_attribute_value(6, (*v7_ResourceGroup)); } if (v8_ResourceConsumption) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(),(size_t)*v8_ResourceConsumption))); } if (v9_BaseQuantity) {set_attribute_value(8, (*v9_BaseQuantity)); }; populate_derived(); }

// Function implementations for IfcConstructionResource
std::optional< std::string > Ifc2x3::IfcConstructionResource::ResourceIdentifier() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcConstructionResource::setResourceIdentifier(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< std::string > Ifc2x3::IfcConstructionResource::ResourceGroup() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcConstructionResource::setResourceGroup(const std::optional< std::string >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > Ifc2x3::IfcConstructionResource::ResourceConsumption() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcResourceConsumptionEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcConstructionResource::setResourceConsumption(const std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value >& v) { if (v) {set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(), (size_t) *v));} else {unset_attribute_value(7);} }
::Ifc2x3::IfcMeasureWithUnit Ifc2x3::IfcConstructionResource::BaseQuantity() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcMeasureWithUnit{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcMeasureWithUnit>(); }
void Ifc2x3::IfcConstructionResource::setBaseQuantity(const ::Ifc2x3::IfcMeasureWithUnit& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcConstructionResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[160]); }
const IfcParse::entity& Ifc2x3::IfcConstructionResource::Class() { return *((IfcParse::entity*)IFC2X3_types[160]); }
// Ifc2x3::IfcConstructionResource::IfcConstructionResource(const std::weak_ptr<InstanceData>& e) : IfcResource(e) { }
// Ifc2x3::IfcConstructionResource::IfcConstructionResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_ResourceIdentifier, std::optional< std::string > v7_ResourceGroup, std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > v8_ResourceConsumption, ::Ifc2x3::IfcMeasureWithUnit v9_BaseQuantity) : IfcResource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ResourceIdentifier) {set_attribute_value(5, (*v6_ResourceIdentifier)); } if (v7_ResourceGroup) {set_attribute_value(6, (*v7_ResourceGroup)); } if (v8_ResourceConsumption) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(),(size_t)*v8_ResourceConsumption))); } if (v9_BaseQuantity) {set_attribute_value(8, (*v9_BaseQuantity)); }; populate_derived(); }

// Function implementations for IfcContextDependentUnit
std::string Ifc2x3::IfcContextDependentUnit::Name() const {  std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcContextDependentUnit::setName(const std::string& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcContextDependentUnit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[162]); }
const IfcParse::entity& Ifc2x3::IfcContextDependentUnit::Class() { return *((IfcParse::entity*)IFC2X3_types[162]); }
// Ifc2x3::IfcContextDependentUnit::IfcContextDependentUnit(const std::weak_ptr<InstanceData>& e) : IfcNamedUnit(e) { }
// Ifc2x3::IfcContextDependentUnit::IfcContextDependentUnit(::Ifc2x3::IfcDimensionalExponents v1_Dimensions, ::Ifc2x3::IfcUnitEnum::Value v2_UnitType, std::string v3_Name) : IfcNamedUnit(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Dimensions));set_attribute_value(1, (EnumerationReference(&::Ifc2x3::IfcUnitEnum::Class(),(size_t)v2_UnitType)));set_attribute_value(2, (v3_Name));; populate_derived(); }

// Function implementations for IfcControl

std::vector<::Ifc2x3::IfcRelAssignsToControl> Ifc2x3::IfcControl::Controls() const { return cast_vector<IfcRelAssignsToControl>(file()->getInverse(data()->id(), IFC2X3_types[671], 6)); }

// const IfcParse::entity& Ifc2x3::IfcControl::declaration() const { return *((IfcParse::entity*)IFC2X3_types[163]); }
const IfcParse::entity& Ifc2x3::IfcControl::Class() { return *((IfcParse::entity*)IFC2X3_types[163]); }
// Ifc2x3::IfcControl::IfcControl(const std::weak_ptr<InstanceData>& e) : IfcObject(e) { }
// Ifc2x3::IfcControl::IfcControl(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcControllerType
::Ifc2x3::IfcControllerTypeEnum::Value Ifc2x3::IfcControllerType::PredefinedType() const {  return ::Ifc2x3::IfcControllerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcControllerType::setPredefinedType(const ::Ifc2x3::IfcControllerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcControllerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcControllerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[164]); }
const IfcParse::entity& Ifc2x3::IfcControllerType::Class() { return *((IfcParse::entity*)IFC2X3_types[164]); }
// Ifc2x3::IfcControllerType::IfcControllerType(const std::weak_ptr<InstanceData>& e) : IfcDistributionControlElementType(e) { }
// Ifc2x3::IfcControllerType::IfcControllerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcControllerTypeEnum::Value v10_PredefinedType) : IfcDistributionControlElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcControllerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcConversionBasedUnit
std::string Ifc2x3::IfcConversionBasedUnit::Name() const {  std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcConversionBasedUnit::setName(const std::string& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcMeasureWithUnit Ifc2x3::IfcConversionBasedUnit::ConversionFactor() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcMeasureWithUnit>(); }
void Ifc2x3::IfcConversionBasedUnit::setConversionFactor(const ::Ifc2x3::IfcMeasureWithUnit& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcConversionBasedUnit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[166]); }
const IfcParse::entity& Ifc2x3::IfcConversionBasedUnit::Class() { return *((IfcParse::entity*)IFC2X3_types[166]); }
// Ifc2x3::IfcConversionBasedUnit::IfcConversionBasedUnit(const std::weak_ptr<InstanceData>& e) : IfcNamedUnit(e) { }
// Ifc2x3::IfcConversionBasedUnit::IfcConversionBasedUnit(::Ifc2x3::IfcDimensionalExponents v1_Dimensions, ::Ifc2x3::IfcUnitEnum::Value v2_UnitType, std::string v3_Name, ::Ifc2x3::IfcMeasureWithUnit v4_ConversionFactor) : IfcNamedUnit(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Dimensions));set_attribute_value(1, (EnumerationReference(&::Ifc2x3::IfcUnitEnum::Class(),(size_t)v2_UnitType)));set_attribute_value(2, (v3_Name));set_attribute_value(3, (v4_ConversionFactor));; populate_derived(); }

// Function implementations for IfcCooledBeamType
::Ifc2x3::IfcCooledBeamTypeEnum::Value Ifc2x3::IfcCooledBeamType::PredefinedType() const {  return ::Ifc2x3::IfcCooledBeamTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCooledBeamType::setPredefinedType(const ::Ifc2x3::IfcCooledBeamTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCooledBeamTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCooledBeamType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[167]); }
const IfcParse::entity& Ifc2x3::IfcCooledBeamType::Class() { return *((IfcParse::entity*)IFC2X3_types[167]); }
// Ifc2x3::IfcCooledBeamType::IfcCooledBeamType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcCooledBeamType::IfcCooledBeamType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCooledBeamTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCooledBeamTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCoolingTowerType
::Ifc2x3::IfcCoolingTowerTypeEnum::Value Ifc2x3::IfcCoolingTowerType::PredefinedType() const {  return ::Ifc2x3::IfcCoolingTowerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCoolingTowerType::setPredefinedType(const ::Ifc2x3::IfcCoolingTowerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCoolingTowerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCoolingTowerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[169]); }
const IfcParse::entity& Ifc2x3::IfcCoolingTowerType::Class() { return *((IfcParse::entity*)IFC2X3_types[169]); }
// Ifc2x3::IfcCoolingTowerType::IfcCoolingTowerType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcCoolingTowerType::IfcCoolingTowerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCoolingTowerTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCoolingTowerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCoordinatedUniversalTimeOffset
int Ifc2x3::IfcCoordinatedUniversalTimeOffset::HourOffset() const {  int v = get_attribute_value(0); return v; }
void Ifc2x3::IfcCoordinatedUniversalTimeOffset::setHourOffset(const int& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< int > Ifc2x3::IfcCoordinatedUniversalTimeOffset::MinuteOffset() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } int v = get_attribute_value(1); return v; }
void Ifc2x3::IfcCoordinatedUniversalTimeOffset::setMinuteOffset(const std::optional< int >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcAheadOrBehind::Value Ifc2x3::IfcCoordinatedUniversalTimeOffset::Sense() const {  return ::Ifc2x3::IfcAheadOrBehind::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcCoordinatedUniversalTimeOffset::setSense(const ::Ifc2x3::IfcAheadOrBehind::Value& v) { set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcAheadOrBehind::Class(), (size_t) v));if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcCoordinatedUniversalTimeOffset::declaration() const { return *((IfcParse::entity*)IFC2X3_types[171]); }
const IfcParse::entity& Ifc2x3::IfcCoordinatedUniversalTimeOffset::Class() { return *((IfcParse::entity*)IFC2X3_types[171]); }
// Ifc2x3::IfcCoordinatedUniversalTimeOffset::IfcCoordinatedUniversalTimeOffset(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcCoordinatedUniversalTimeOffset::IfcCoordinatedUniversalTimeOffset(int v1_HourOffset, std::optional< int > v2_MinuteOffset, ::Ifc2x3::IfcAheadOrBehind::Value v3_Sense) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_HourOffset)); if (v2_MinuteOffset) {set_attribute_value(1, (*v2_MinuteOffset)); }set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcAheadOrBehind::Class(),(size_t)v3_Sense)));; populate_derived(); }

// Function implementations for IfcCostItem


// const IfcParse::entity& Ifc2x3::IfcCostItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[172]); }
const IfcParse::entity& Ifc2x3::IfcCostItem::Class() { return *((IfcParse::entity*)IFC2X3_types[172]); }
// Ifc2x3::IfcCostItem::IfcCostItem(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcCostItem::IfcCostItem(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcCostSchedule
::Ifc2x3::IfcActorSelect Ifc2x3::IfcCostSchedule::SubmittedBy() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcActorSelect{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcCostSchedule::setSubmittedBy(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcActorSelect Ifc2x3::IfcCostSchedule::PreparedBy() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcActorSelect{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcCostSchedule::setPreparedBy(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcCostSchedule::SubmittedOn() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcCostSchedule::setSubmittedOn(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
std::optional< std::string > Ifc2x3::IfcCostSchedule::Status() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcCostSchedule::setStatus(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< std::vector< ::Ifc2x3::IfcActorSelect > > Ifc2x3::IfcCostSchedule::TargetUsers() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(9); return cast_vector<::Ifc2x3::IfcActorSelect>(es); }
void Ifc2x3::IfcCostSchedule::setTargetUsers(const std::optional< std::vector< ::Ifc2x3::IfcActorSelect > >& v) { if (v) {set_attribute_value(9, cast_vector<express::Base>(*v));} else {unset_attribute_value(9);} }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcCostSchedule::UpdateDate() const { if(get_attribute_value(10).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcCostSchedule::setUpdateDate(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
std::string Ifc2x3::IfcCostSchedule::ID() const {  std::string v = get_attribute_value(11); return v; }
void Ifc2x3::IfcCostSchedule::setID(const std::string& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
::Ifc2x3::IfcCostScheduleTypeEnum::Value Ifc2x3::IfcCostSchedule::PredefinedType() const {  return ::Ifc2x3::IfcCostScheduleTypeEnum::FromString(get_attribute_value(12)); }
void Ifc2x3::IfcCostSchedule::setPredefinedType(const ::Ifc2x3::IfcCostScheduleTypeEnum::Value& v) { set_attribute_value(12, EnumerationReference(&::Ifc2x3::IfcCostScheduleTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(12); }


// const IfcParse::entity& Ifc2x3::IfcCostSchedule::declaration() const { return *((IfcParse::entity*)IFC2X3_types[173]); }
const IfcParse::entity& Ifc2x3::IfcCostSchedule::Class() { return *((IfcParse::entity*)IFC2X3_types[173]); }
// Ifc2x3::IfcCostSchedule::IfcCostSchedule(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcCostSchedule::IfcCostSchedule(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcActorSelect v6_SubmittedBy, ::Ifc2x3::IfcActorSelect v7_PreparedBy, ::Ifc2x3::IfcDateTimeSelect v8_SubmittedOn, std::optional< std::string > v9_Status, std::optional< std::vector< ::Ifc2x3::IfcActorSelect > > v10_TargetUsers, ::Ifc2x3::IfcDateTimeSelect v11_UpdateDate, std::string v12_ID, ::Ifc2x3::IfcCostScheduleTypeEnum::Value v13_PredefinedType) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(13))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_SubmittedBy) {set_attribute_value(5, (*v6_SubmittedBy)); } if (v7_PreparedBy) {set_attribute_value(6, (*v7_PreparedBy)); } if (v8_SubmittedOn) {set_attribute_value(7, (*v8_SubmittedOn)); } if (v9_Status) {set_attribute_value(8, (*v9_Status)); } if (v10_TargetUsers) {set_attribute_value(9, (*v10_TargetUsers)->generalize()); } if (v11_UpdateDate) {set_attribute_value(10, (*v11_UpdateDate)); }set_attribute_value(11, (v12_ID));set_attribute_value(12, (EnumerationReference(&::Ifc2x3::IfcCostScheduleTypeEnum::Class(),(size_t)v13_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCostValue
std::string Ifc2x3::IfcCostValue::CostType() const {  std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcCostValue::setCostType(const std::string& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< std::string > Ifc2x3::IfcCostValue::Condition() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcCostValue::setCondition(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcCostValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[175]); }
const IfcParse::entity& Ifc2x3::IfcCostValue::Class() { return *((IfcParse::entity*)IFC2X3_types[175]); }
// Ifc2x3::IfcCostValue::IfcCostValue(const std::weak_ptr<InstanceData>& e) : IfcAppliedValue(e) { }
// Ifc2x3::IfcCostValue::IfcCostValue(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcAppliedValueSelect v3_AppliedValue, ::Ifc2x3::IfcMeasureWithUnit v4_UnitBasis, ::Ifc2x3::IfcDateTimeSelect v5_ApplicableDate, ::Ifc2x3::IfcDateTimeSelect v6_FixedUntilDate, std::string v7_CostType, std::optional< std::string > v8_Condition) : IfcAppliedValue(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_AppliedValue) {set_attribute_value(2, (*v3_AppliedValue)); } if (v4_UnitBasis) {set_attribute_value(3, (*v4_UnitBasis)); } if (v5_ApplicableDate) {set_attribute_value(4, (*v5_ApplicableDate)); } if (v6_FixedUntilDate) {set_attribute_value(5, (*v6_FixedUntilDate)); }set_attribute_value(6, (v7_CostType)); if (v8_Condition) {set_attribute_value(7, (*v8_Condition)); }; populate_derived(); }

// Function implementations for IfcCovering
std::optional< ::Ifc2x3::IfcCoveringTypeEnum::Value > Ifc2x3::IfcCovering::PredefinedType() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcCoveringTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcCovering::setPredefinedType(const std::optional< ::Ifc2x3::IfcCoveringTypeEnum::Value >& v) { if (v) {set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcCoveringTypeEnum::Class(), (size_t) *v));} else {unset_attribute_value(8);} }

std::vector<::Ifc2x3::IfcRelCoversSpaces> Ifc2x3::IfcCovering::CoversSpaces() const { return cast_vector<IfcRelCoversSpaces>(file()->getInverse(data()->id(), IFC2X3_types[700], 5)); }
std::vector<::Ifc2x3::IfcRelCoversBldgElements> Ifc2x3::IfcCovering::Covers() const { return cast_vector<IfcRelCoversBldgElements>(file()->getInverse(data()->id(), IFC2X3_types[699], 5)); }

// const IfcParse::entity& Ifc2x3::IfcCovering::declaration() const { return *((IfcParse::entity*)IFC2X3_types[177]); }
const IfcParse::entity& Ifc2x3::IfcCovering::Class() { return *((IfcParse::entity*)IFC2X3_types[177]); }
// Ifc2x3::IfcCovering::IfcCovering(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcCovering::IfcCovering(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< ::Ifc2x3::IfcCoveringTypeEnum::Value > v9_PredefinedType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_PredefinedType) {set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcCoveringTypeEnum::Class(),(size_t)*v9_PredefinedType))); }; populate_derived(); }

// Function implementations for IfcCoveringType
::Ifc2x3::IfcCoveringTypeEnum::Value Ifc2x3::IfcCoveringType::PredefinedType() const {  return ::Ifc2x3::IfcCoveringTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCoveringType::setPredefinedType(const ::Ifc2x3::IfcCoveringTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCoveringTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCoveringType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[178]); }
const IfcParse::entity& Ifc2x3::IfcCoveringType::Class() { return *((IfcParse::entity*)IFC2X3_types[178]); }
// Ifc2x3::IfcCoveringType::IfcCoveringType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcCoveringType::IfcCoveringType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCoveringTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCoveringTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCraneRailAShapeProfileDef
double Ifc2x3::IfcCraneRailAShapeProfileDef::OverallHeight() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setOverallHeight(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::BaseWidth2() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setBaseWidth2(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::optional< double > Ifc2x3::IfcCraneRailAShapeProfileDef::Radius() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setRadius(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
double Ifc2x3::IfcCraneRailAShapeProfileDef::HeadWidth() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setHeadWidth(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::HeadDepth2() const {  double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setHeadDepth2(const double& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::HeadDepth3() const {  double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setHeadDepth3(const double& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::WebThickness() const {  double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setWebThickness(const double& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::BaseWidth4() const {  double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setBaseWidth4(const double& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::BaseDepth1() const {  double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setBaseDepth1(const double& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::BaseDepth2() const {  double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setBaseDepth2(const double& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
double Ifc2x3::IfcCraneRailAShapeProfileDef::BaseDepth3() const {  double v = get_attribute_value(13); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setBaseDepth3(const double& v) { set_attribute_value(13, v);if constexpr (false)unset_attribute_value(13); }
std::optional< double > Ifc2x3::IfcCraneRailAShapeProfileDef::CentreOfGravityInY() const { if(get_attribute_value(14).isNull()) { return std::nullopt; } double v = get_attribute_value(14); return v; }
void Ifc2x3::IfcCraneRailAShapeProfileDef::setCentreOfGravityInY(const std::optional< double >& v) { if (v) {set_attribute_value(14, *v);} else {unset_attribute_value(14);} }


// const IfcParse::entity& Ifc2x3::IfcCraneRailAShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[180]); }
const IfcParse::entity& Ifc2x3::IfcCraneRailAShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[180]); }
// Ifc2x3::IfcCraneRailAShapeProfileDef::IfcCraneRailAShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcCraneRailAShapeProfileDef::IfcCraneRailAShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_OverallHeight, double v5_BaseWidth2, std::optional< double > v6_Radius, double v7_HeadWidth, double v8_HeadDepth2, double v9_HeadDepth3, double v10_WebThickness, double v11_BaseWidth4, double v12_BaseDepth1, double v13_BaseDepth2, double v14_BaseDepth3, std::optional< double > v15_CentreOfGravityInY) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(15))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_OverallHeight));set_attribute_value(4, (v5_BaseWidth2)); if (v6_Radius) {set_attribute_value(5, (*v6_Radius)); }set_attribute_value(6, (v7_HeadWidth));set_attribute_value(7, (v8_HeadDepth2));set_attribute_value(8, (v9_HeadDepth3));set_attribute_value(9, (v10_WebThickness));set_attribute_value(10, (v11_BaseWidth4));set_attribute_value(11, (v12_BaseDepth1));set_attribute_value(12, (v13_BaseDepth2));set_attribute_value(13, (v14_BaseDepth3)); if (v15_CentreOfGravityInY) {set_attribute_value(14, (*v15_CentreOfGravityInY)); }; populate_derived(); }

// Function implementations for IfcCraneRailFShapeProfileDef
double Ifc2x3::IfcCraneRailFShapeProfileDef::OverallHeight() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setOverallHeight(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcCraneRailFShapeProfileDef::HeadWidth() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setHeadWidth(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::optional< double > Ifc2x3::IfcCraneRailFShapeProfileDef::Radius() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setRadius(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
double Ifc2x3::IfcCraneRailFShapeProfileDef::HeadDepth2() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setHeadDepth2(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
double Ifc2x3::IfcCraneRailFShapeProfileDef::HeadDepth3() const {  double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setHeadDepth3(const double& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
double Ifc2x3::IfcCraneRailFShapeProfileDef::WebThickness() const {  double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setWebThickness(const double& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
double Ifc2x3::IfcCraneRailFShapeProfileDef::BaseDepth1() const {  double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setBaseDepth1(const double& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
double Ifc2x3::IfcCraneRailFShapeProfileDef::BaseDepth2() const {  double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setBaseDepth2(const double& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
std::optional< double > Ifc2x3::IfcCraneRailFShapeProfileDef::CentreOfGravityInY() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcCraneRailFShapeProfileDef::setCentreOfGravityInY(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }


// const IfcParse::entity& Ifc2x3::IfcCraneRailFShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[181]); }
const IfcParse::entity& Ifc2x3::IfcCraneRailFShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[181]); }
// Ifc2x3::IfcCraneRailFShapeProfileDef::IfcCraneRailFShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcCraneRailFShapeProfileDef::IfcCraneRailFShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_OverallHeight, double v5_HeadWidth, std::optional< double > v6_Radius, double v7_HeadDepth2, double v8_HeadDepth3, double v9_WebThickness, double v10_BaseDepth1, double v11_BaseDepth2, std::optional< double > v12_CentreOfGravityInY) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_OverallHeight));set_attribute_value(4, (v5_HeadWidth)); if (v6_Radius) {set_attribute_value(5, (*v6_Radius)); }set_attribute_value(6, (v7_HeadDepth2));set_attribute_value(7, (v8_HeadDepth3));set_attribute_value(8, (v9_WebThickness));set_attribute_value(9, (v10_BaseDepth1));set_attribute_value(10, (v11_BaseDepth2)); if (v12_CentreOfGravityInY) {set_attribute_value(11, (*v12_CentreOfGravityInY)); }; populate_derived(); }

// Function implementations for IfcCrewResource


// const IfcParse::entity& Ifc2x3::IfcCrewResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[182]); }
const IfcParse::entity& Ifc2x3::IfcCrewResource::Class() { return *((IfcParse::entity*)IFC2X3_types[182]); }
// Ifc2x3::IfcCrewResource::IfcCrewResource(const std::weak_ptr<InstanceData>& e) : IfcConstructionResource(e) { }
// Ifc2x3::IfcCrewResource::IfcCrewResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_ResourceIdentifier, std::optional< std::string > v7_ResourceGroup, std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > v8_ResourceConsumption, ::Ifc2x3::IfcMeasureWithUnit v9_BaseQuantity) : IfcConstructionResource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ResourceIdentifier) {set_attribute_value(5, (*v6_ResourceIdentifier)); } if (v7_ResourceGroup) {set_attribute_value(6, (*v7_ResourceGroup)); } if (v8_ResourceConsumption) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(),(size_t)*v8_ResourceConsumption))); } if (v9_BaseQuantity) {set_attribute_value(8, (*v9_BaseQuantity)); }; populate_derived(); }

// Function implementations for IfcCsgPrimitive3D
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcCsgPrimitive3D::Position() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcCsgPrimitive3D::setPosition(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcCsgPrimitive3D::declaration() const { return *((IfcParse::entity*)IFC2X3_types[183]); }
const IfcParse::entity& Ifc2x3::IfcCsgPrimitive3D::Class() { return *((IfcParse::entity*)IFC2X3_types[183]); }
// Ifc2x3::IfcCsgPrimitive3D::IfcCsgPrimitive3D(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcCsgPrimitive3D::IfcCsgPrimitive3D(::Ifc2x3::IfcAxis2Placement3D v1_Position) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Position));; populate_derived(); }

// Function implementations for IfcCsgSolid
::Ifc2x3::IfcCsgSelect Ifc2x3::IfcCsgSolid::TreeRootExpression() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCsgSelect>(); }
void Ifc2x3::IfcCsgSolid::setTreeRootExpression(const ::Ifc2x3::IfcCsgSelect& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcCsgSolid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[185]); }
const IfcParse::entity& Ifc2x3::IfcCsgSolid::Class() { return *((IfcParse::entity*)IFC2X3_types[185]); }
// Ifc2x3::IfcCsgSolid::IfcCsgSolid(const std::weak_ptr<InstanceData>& e) : IfcSolidModel(e) { }
// Ifc2x3::IfcCsgSolid::IfcCsgSolid(::Ifc2x3::IfcCsgSelect v1_TreeRootExpression) : IfcSolidModel(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_TreeRootExpression));; populate_derived(); }

// Function implementations for IfcCurrencyRelationship
::Ifc2x3::IfcMonetaryUnit Ifc2x3::IfcCurrencyRelationship::RelatingMonetaryUnit() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcMonetaryUnit>(); }
void Ifc2x3::IfcCurrencyRelationship::setRelatingMonetaryUnit(const ::Ifc2x3::IfcMonetaryUnit& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcMonetaryUnit Ifc2x3::IfcCurrencyRelationship::RelatedMonetaryUnit() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcMonetaryUnit>(); }
void Ifc2x3::IfcCurrencyRelationship::setRelatedMonetaryUnit(const ::Ifc2x3::IfcMonetaryUnit& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcCurrencyRelationship::ExchangeRate() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcCurrencyRelationship::setExchangeRate(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcDateAndTime Ifc2x3::IfcCurrencyRelationship::RateDateTime() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcDateAndTime>(); }
void Ifc2x3::IfcCurrencyRelationship::setRateDateTime(const ::Ifc2x3::IfcDateAndTime& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcLibraryInformation Ifc2x3::IfcCurrencyRelationship::RateSource() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcLibraryInformation{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcLibraryInformation>(); }
void Ifc2x3::IfcCurrencyRelationship::setRateSource(const ::Ifc2x3::IfcLibraryInformation& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcCurrencyRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[188]); }
const IfcParse::entity& Ifc2x3::IfcCurrencyRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[188]); }
// Ifc2x3::IfcCurrencyRelationship::IfcCurrencyRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcCurrencyRelationship::IfcCurrencyRelationship(::Ifc2x3::IfcMonetaryUnit v1_RelatingMonetaryUnit, ::Ifc2x3::IfcMonetaryUnit v2_RelatedMonetaryUnit, double v3_ExchangeRate, ::Ifc2x3::IfcDateAndTime v4_RateDateTime, ::Ifc2x3::IfcLibraryInformation v5_RateSource) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_RelatingMonetaryUnit));set_attribute_value(1, (v2_RelatedMonetaryUnit));set_attribute_value(2, (v3_ExchangeRate));set_attribute_value(3, (v4_RateDateTime)); if (v5_RateSource) {set_attribute_value(4, (*v5_RateSource)); }; populate_derived(); }

// Function implementations for IfcCurtainWall


// const IfcParse::entity& Ifc2x3::IfcCurtainWall::declaration() const { return *((IfcParse::entity*)IFC2X3_types[189]); }
const IfcParse::entity& Ifc2x3::IfcCurtainWall::Class() { return *((IfcParse::entity*)IFC2X3_types[189]); }
// Ifc2x3::IfcCurtainWall::IfcCurtainWall(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcCurtainWall::IfcCurtainWall(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcCurtainWallType
::Ifc2x3::IfcCurtainWallTypeEnum::Value Ifc2x3::IfcCurtainWallType::PredefinedType() const {  return ::Ifc2x3::IfcCurtainWallTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcCurtainWallType::setPredefinedType(const ::Ifc2x3::IfcCurtainWallTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcCurtainWallTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcCurtainWallType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[190]); }
const IfcParse::entity& Ifc2x3::IfcCurtainWallType::Class() { return *((IfcParse::entity*)IFC2X3_types[190]); }
// Ifc2x3::IfcCurtainWallType::IfcCurtainWallType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcCurtainWallType::IfcCurtainWallType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcCurtainWallTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcCurtainWallTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcCurve


// const IfcParse::entity& Ifc2x3::IfcCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[193]); }
const IfcParse::entity& Ifc2x3::IfcCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[193]); }
// Ifc2x3::IfcCurve::IfcCurve(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcCurve::IfcCurve() : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcCurveBoundedPlane
::Ifc2x3::IfcPlane Ifc2x3::IfcCurveBoundedPlane::BasisSurface() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcPlane>(); }
void Ifc2x3::IfcCurveBoundedPlane::setBasisSurface(const ::Ifc2x3::IfcPlane& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcCurve Ifc2x3::IfcCurveBoundedPlane::OuterBoundary() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcCurveBoundedPlane::setOuterBoundary(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::vector< ::Ifc2x3::IfcCurve > Ifc2x3::IfcCurveBoundedPlane::InnerBoundaries() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcCurve>(es); }
void Ifc2x3::IfcCurveBoundedPlane::setInnerBoundaries(const std::vector< ::Ifc2x3::IfcCurve >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcCurveBoundedPlane::declaration() const { return *((IfcParse::entity*)IFC2X3_types[194]); }
const IfcParse::entity& Ifc2x3::IfcCurveBoundedPlane::Class() { return *((IfcParse::entity*)IFC2X3_types[194]); }
// Ifc2x3::IfcCurveBoundedPlane::IfcCurveBoundedPlane(const std::weak_ptr<InstanceData>& e) : IfcBoundedSurface(e) { }
// Ifc2x3::IfcCurveBoundedPlane::IfcCurveBoundedPlane(::Ifc2x3::IfcPlane v1_BasisSurface, ::Ifc2x3::IfcCurve v2_OuterBoundary, std::vector< ::Ifc2x3::IfcCurve > v3_InnerBoundaries) : IfcBoundedSurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_BasisSurface));set_attribute_value(1, (v2_OuterBoundary));set_attribute_value(2, (v3_InnerBoundaries)->generalize());; populate_derived(); }

// Function implementations for IfcCurveStyle
::Ifc2x3::IfcCurveFontOrScaledCurveFontSelect Ifc2x3::IfcCurveStyle::CurveFont() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcCurveFontOrScaledCurveFontSelect{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCurveFontOrScaledCurveFontSelect>(); }
void Ifc2x3::IfcCurveStyle::setCurveFont(const ::Ifc2x3::IfcCurveFontOrScaledCurveFontSelect& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcSizeSelect Ifc2x3::IfcCurveStyle::CurveWidth() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcSizeSelect{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcSizeSelect>(); }
void Ifc2x3::IfcCurveStyle::setCurveWidth(const ::Ifc2x3::IfcSizeSelect& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcColour Ifc2x3::IfcCurveStyle::CurveColour() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcColour{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcColour>(); }
void Ifc2x3::IfcCurveStyle::setCurveColour(const ::Ifc2x3::IfcColour& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcCurveStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[197]); }
const IfcParse::entity& Ifc2x3::IfcCurveStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[197]); }
// Ifc2x3::IfcCurveStyle::IfcCurveStyle(const std::weak_ptr<InstanceData>& e) : IfcPresentationStyle(e) { }
// Ifc2x3::IfcCurveStyle::IfcCurveStyle(std::optional< std::string > v1_Name, ::Ifc2x3::IfcCurveFontOrScaledCurveFontSelect v2_CurveFont, ::Ifc2x3::IfcSizeSelect v3_CurveWidth, ::Ifc2x3::IfcColour v4_CurveColour) : IfcPresentationStyle(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_CurveFont) {set_attribute_value(1, (*v2_CurveFont)); } if (v3_CurveWidth) {set_attribute_value(2, (*v3_CurveWidth)); } if (v4_CurveColour) {set_attribute_value(3, (*v4_CurveColour)); }; populate_derived(); }

// Function implementations for IfcCurveStyleFont
std::optional< std::string > Ifc2x3::IfcCurveStyleFont::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcCurveStyleFont::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::vector< ::Ifc2x3::IfcCurveStyleFontPattern > Ifc2x3::IfcCurveStyleFont::PatternList() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcCurveStyleFontPattern>(es); }
void Ifc2x3::IfcCurveStyleFont::setPatternList(const std::vector< ::Ifc2x3::IfcCurveStyleFontPattern >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcCurveStyleFont::declaration() const { return *((IfcParse::entity*)IFC2X3_types[198]); }
const IfcParse::entity& Ifc2x3::IfcCurveStyleFont::Class() { return *((IfcParse::entity*)IFC2X3_types[198]); }
// Ifc2x3::IfcCurveStyleFont::IfcCurveStyleFont(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcCurveStyleFont::IfcCurveStyleFont(std::optional< std::string > v1_Name, std::vector< ::Ifc2x3::IfcCurveStyleFontPattern > v2_PatternList) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_PatternList)->generalize());; populate_derived(); }

// Function implementations for IfcCurveStyleFontAndScaling
std::optional< std::string > Ifc2x3::IfcCurveStyleFontAndScaling::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcCurveStyleFontAndScaling::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
::Ifc2x3::IfcCurveStyleFontSelect Ifc2x3::IfcCurveStyleFontAndScaling::CurveFont() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCurveStyleFontSelect>(); }
void Ifc2x3::IfcCurveStyleFontAndScaling::setCurveFont(const ::Ifc2x3::IfcCurveStyleFontSelect& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcCurveStyleFontAndScaling::CurveFontScaling() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcCurveStyleFontAndScaling::setCurveFontScaling(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcCurveStyleFontAndScaling::declaration() const { return *((IfcParse::entity*)IFC2X3_types[199]); }
const IfcParse::entity& Ifc2x3::IfcCurveStyleFontAndScaling::Class() { return *((IfcParse::entity*)IFC2X3_types[199]); }
// Ifc2x3::IfcCurveStyleFontAndScaling::IfcCurveStyleFontAndScaling(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcCurveStyleFontAndScaling::IfcCurveStyleFontAndScaling(std::optional< std::string > v1_Name, ::Ifc2x3::IfcCurveStyleFontSelect v2_CurveFont, double v3_CurveFontScaling) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_CurveFont));set_attribute_value(2, (v3_CurveFontScaling));; populate_derived(); }

// Function implementations for IfcCurveStyleFontPattern
double Ifc2x3::IfcCurveStyleFontPattern::VisibleSegmentLength() const {  double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcCurveStyleFontPattern::setVisibleSegmentLength(const double& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcCurveStyleFontPattern::InvisibleSegmentLength() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcCurveStyleFontPattern::setInvisibleSegmentLength(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcCurveStyleFontPattern::declaration() const { return *((IfcParse::entity*)IFC2X3_types[200]); }
const IfcParse::entity& Ifc2x3::IfcCurveStyleFontPattern::Class() { return *((IfcParse::entity*)IFC2X3_types[200]); }
// Ifc2x3::IfcCurveStyleFontPattern::IfcCurveStyleFontPattern(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcCurveStyleFontPattern::IfcCurveStyleFontPattern(double v1_VisibleSegmentLength, double v2_InvisibleSegmentLength) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_VisibleSegmentLength));set_attribute_value(1, (v2_InvisibleSegmentLength));; populate_derived(); }

// Function implementations for IfcDamperType
::Ifc2x3::IfcDamperTypeEnum::Value Ifc2x3::IfcDamperType::PredefinedType() const {  return ::Ifc2x3::IfcDamperTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcDamperType::setPredefinedType(const ::Ifc2x3::IfcDamperTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcDamperTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcDamperType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[202]); }
const IfcParse::entity& Ifc2x3::IfcDamperType::Class() { return *((IfcParse::entity*)IFC2X3_types[202]); }
// Ifc2x3::IfcDamperType::IfcDamperType(const std::weak_ptr<InstanceData>& e) : IfcFlowControllerType(e) { }
// Ifc2x3::IfcDamperType::IfcDamperType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcDamperTypeEnum::Value v10_PredefinedType) : IfcFlowControllerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcDamperTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcDateAndTime
::Ifc2x3::IfcCalendarDate Ifc2x3::IfcDateAndTime::DateComponent() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCalendarDate>(); }
void Ifc2x3::IfcDateAndTime::setDateComponent(const ::Ifc2x3::IfcCalendarDate& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcLocalTime Ifc2x3::IfcDateAndTime::TimeComponent() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcLocalTime>(); }
void Ifc2x3::IfcDateAndTime::setTimeComponent(const ::Ifc2x3::IfcLocalTime& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcDateAndTime::declaration() const { return *((IfcParse::entity*)IFC2X3_types[205]); }
const IfcParse::entity& Ifc2x3::IfcDateAndTime::Class() { return *((IfcParse::entity*)IFC2X3_types[205]); }
// Ifc2x3::IfcDateAndTime::IfcDateAndTime(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDateAndTime::IfcDateAndTime(::Ifc2x3::IfcCalendarDate v1_DateComponent, ::Ifc2x3::IfcLocalTime v2_TimeComponent) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_DateComponent));set_attribute_value(1, (v2_TimeComponent));; populate_derived(); }

// Function implementations for IfcDefinedSymbol
::Ifc2x3::IfcDefinedSymbolSelect Ifc2x3::IfcDefinedSymbol::Definition() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcDefinedSymbolSelect>(); }
void Ifc2x3::IfcDefinedSymbol::setDefinition(const ::Ifc2x3::IfcDefinedSymbolSelect& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcCartesianTransformationOperator2D Ifc2x3::IfcDefinedSymbol::Target() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCartesianTransformationOperator2D>(); }
void Ifc2x3::IfcDefinedSymbol::setTarget(const ::Ifc2x3::IfcCartesianTransformationOperator2D& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcDefinedSymbol::declaration() const { return *((IfcParse::entity*)IFC2X3_types[209]); }
const IfcParse::entity& Ifc2x3::IfcDefinedSymbol::Class() { return *((IfcParse::entity*)IFC2X3_types[209]); }
// Ifc2x3::IfcDefinedSymbol::IfcDefinedSymbol(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcDefinedSymbol::IfcDefinedSymbol(::Ifc2x3::IfcDefinedSymbolSelect v1_Definition, ::Ifc2x3::IfcCartesianTransformationOperator2D v2_Target) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Definition));set_attribute_value(1, (v2_Target));; populate_derived(); }

// Function implementations for IfcDerivedProfileDef
::Ifc2x3::IfcProfileDef Ifc2x3::IfcDerivedProfileDef::ParentProfile() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcProfileDef>(); }
void Ifc2x3::IfcDerivedProfileDef::setParentProfile(const ::Ifc2x3::IfcProfileDef& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcCartesianTransformationOperator2D Ifc2x3::IfcDerivedProfileDef::Operator() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcCartesianTransformationOperator2D>(); }
void Ifc2x3::IfcDerivedProfileDef::setOperator(const ::Ifc2x3::IfcCartesianTransformationOperator2D& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
std::optional< std::string > Ifc2x3::IfcDerivedProfileDef::Label() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcDerivedProfileDef::setLabel(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcDerivedProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[212]); }
const IfcParse::entity& Ifc2x3::IfcDerivedProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[212]); }
// Ifc2x3::IfcDerivedProfileDef::IfcDerivedProfileDef(const std::weak_ptr<InstanceData>& e) : IfcProfileDef(e) { }
// Ifc2x3::IfcDerivedProfileDef::IfcDerivedProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcProfileDef v3_ParentProfile, ::Ifc2x3::IfcCartesianTransformationOperator2D v4_Operator, std::optional< std::string > v5_Label) : IfcProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_ParentProfile));set_attribute_value(3, (v4_Operator)); if (v5_Label) {set_attribute_value(4, (*v5_Label)); }; populate_derived(); }

// Function implementations for IfcDerivedUnit
std::vector< ::Ifc2x3::IfcDerivedUnitElement > Ifc2x3::IfcDerivedUnit::Elements() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcDerivedUnitElement>(es); }
void Ifc2x3::IfcDerivedUnit::setElements(const std::vector< ::Ifc2x3::IfcDerivedUnitElement >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcDerivedUnitEnum::Value Ifc2x3::IfcDerivedUnit::UnitType() const {  return ::Ifc2x3::IfcDerivedUnitEnum::FromString(get_attribute_value(1)); }
void Ifc2x3::IfcDerivedUnit::setUnitType(const ::Ifc2x3::IfcDerivedUnitEnum::Value& v) { set_attribute_value(1, EnumerationReference(&::Ifc2x3::IfcDerivedUnitEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcDerivedUnit::UserDefinedType() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcDerivedUnit::setUserDefinedType(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }


// const IfcParse::entity& Ifc2x3::IfcDerivedUnit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[213]); }
const IfcParse::entity& Ifc2x3::IfcDerivedUnit::Class() { return *((IfcParse::entity*)IFC2X3_types[213]); }
// Ifc2x3::IfcDerivedUnit::IfcDerivedUnit(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDerivedUnit::IfcDerivedUnit(std::vector< ::Ifc2x3::IfcDerivedUnitElement > v1_Elements, ::Ifc2x3::IfcDerivedUnitEnum::Value v2_UnitType, std::optional< std::string > v3_UserDefinedType) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Elements)->generalize());set_attribute_value(1, (EnumerationReference(&::Ifc2x3::IfcDerivedUnitEnum::Class(),(size_t)v2_UnitType))); if (v3_UserDefinedType) {set_attribute_value(2, (*v3_UserDefinedType)); }; populate_derived(); }

// Function implementations for IfcDerivedUnitElement
::Ifc2x3::IfcNamedUnit Ifc2x3::IfcDerivedUnitElement::Unit() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcNamedUnit>(); }
void Ifc2x3::IfcDerivedUnitElement::setUnit(const ::Ifc2x3::IfcNamedUnit& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
int Ifc2x3::IfcDerivedUnitElement::Exponent() const {  int v = get_attribute_value(1); return v; }
void Ifc2x3::IfcDerivedUnitElement::setExponent(const int& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcDerivedUnitElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[214]); }
const IfcParse::entity& Ifc2x3::IfcDerivedUnitElement::Class() { return *((IfcParse::entity*)IFC2X3_types[214]); }
// Ifc2x3::IfcDerivedUnitElement::IfcDerivedUnitElement(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDerivedUnitElement::IfcDerivedUnitElement(::Ifc2x3::IfcNamedUnit v1_Unit, int v2_Exponent) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Unit));set_attribute_value(1, (v2_Exponent));; populate_derived(); }

// Function implementations for IfcDiameterDimension


// const IfcParse::entity& Ifc2x3::IfcDiameterDimension::declaration() const { return *((IfcParse::entity*)IFC2X3_types[217]); }
const IfcParse::entity& Ifc2x3::IfcDiameterDimension::Class() { return *((IfcParse::entity*)IFC2X3_types[217]); }
// Ifc2x3::IfcDiameterDimension::IfcDiameterDimension(const std::weak_ptr<InstanceData>& e) : IfcDimensionCurveDirectedCallout(e) { }
// Ifc2x3::IfcDiameterDimension::IfcDiameterDimension(std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > v1_Contents) : IfcDimensionCurveDirectedCallout(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Contents)->generalize());; populate_derived(); }

// Function implementations for IfcDimensionCalloutRelationship


// const IfcParse::entity& Ifc2x3::IfcDimensionCalloutRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[219]); }
const IfcParse::entity& Ifc2x3::IfcDimensionCalloutRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[219]); }
// Ifc2x3::IfcDimensionCalloutRelationship::IfcDimensionCalloutRelationship(const std::weak_ptr<InstanceData>& e) : IfcDraughtingCalloutRelationship(e) { }
// Ifc2x3::IfcDimensionCalloutRelationship::IfcDimensionCalloutRelationship(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcDraughtingCallout v3_RelatingDraughtingCallout, ::Ifc2x3::IfcDraughtingCallout v4_RelatedDraughtingCallout) : IfcDraughtingCalloutRelationship(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_RelatingDraughtingCallout));set_attribute_value(3, (v4_RelatedDraughtingCallout));; populate_derived(); }

// Function implementations for IfcDimensionCurve

std::vector<::Ifc2x3::IfcTerminatorSymbol> Ifc2x3::IfcDimensionCurve::AnnotatedBySymbols() const { return cast_vector<IfcTerminatorSymbol>(file()->getInverse(data()->id(), IFC2X3_types[878], 3)); }

// const IfcParse::entity& Ifc2x3::IfcDimensionCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[221]); }
const IfcParse::entity& Ifc2x3::IfcDimensionCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[221]); }
// Ifc2x3::IfcDimensionCurve::IfcDimensionCurve(const std::weak_ptr<InstanceData>& e) : IfcAnnotationCurveOccurrence(e) { }
// Ifc2x3::IfcDimensionCurve::IfcDimensionCurve(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcAnnotationCurveOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcDimensionCurveDirectedCallout


// const IfcParse::entity& Ifc2x3::IfcDimensionCurveDirectedCallout::declaration() const { return *((IfcParse::entity*)IFC2X3_types[222]); }
const IfcParse::entity& Ifc2x3::IfcDimensionCurveDirectedCallout::Class() { return *((IfcParse::entity*)IFC2X3_types[222]); }
// Ifc2x3::IfcDimensionCurveDirectedCallout::IfcDimensionCurveDirectedCallout(const std::weak_ptr<InstanceData>& e) : IfcDraughtingCallout(e) { }
// Ifc2x3::IfcDimensionCurveDirectedCallout::IfcDimensionCurveDirectedCallout(std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > v1_Contents) : IfcDraughtingCallout(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Contents)->generalize());; populate_derived(); }

// Function implementations for IfcDimensionCurveTerminator
::Ifc2x3::IfcDimensionExtentUsage::Value Ifc2x3::IfcDimensionCurveTerminator::Role() const {  return ::Ifc2x3::IfcDimensionExtentUsage::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcDimensionCurveTerminator::setRole(const ::Ifc2x3::IfcDimensionExtentUsage::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcDimensionExtentUsage::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcDimensionCurveTerminator::declaration() const { return *((IfcParse::entity*)IFC2X3_types[223]); }
const IfcParse::entity& Ifc2x3::IfcDimensionCurveTerminator::Class() { return *((IfcParse::entity*)IFC2X3_types[223]); }
// Ifc2x3::IfcDimensionCurveTerminator::IfcDimensionCurveTerminator(const std::weak_ptr<InstanceData>& e) : IfcTerminatorSymbol(e) { }
// Ifc2x3::IfcDimensionCurveTerminator::IfcDimensionCurveTerminator(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name, ::Ifc2x3::IfcAnnotationCurveOccurrence v4_AnnotatedCurve, ::Ifc2x3::IfcDimensionExtentUsage::Value v5_Role) : IfcTerminatorSymbol(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }set_attribute_value(3, (v4_AnnotatedCurve));set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcDimensionExtentUsage::Class(),(size_t)v5_Role)));; populate_derived(); }

// Function implementations for IfcDimensionPair


// const IfcParse::entity& Ifc2x3::IfcDimensionPair::declaration() const { return *((IfcParse::entity*)IFC2X3_types[225]); }
const IfcParse::entity& Ifc2x3::IfcDimensionPair::Class() { return *((IfcParse::entity*)IFC2X3_types[225]); }
// Ifc2x3::IfcDimensionPair::IfcDimensionPair(const std::weak_ptr<InstanceData>& e) : IfcDraughtingCalloutRelationship(e) { }
// Ifc2x3::IfcDimensionPair::IfcDimensionPair(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcDraughtingCallout v3_RelatingDraughtingCallout, ::Ifc2x3::IfcDraughtingCallout v4_RelatedDraughtingCallout) : IfcDraughtingCalloutRelationship(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_RelatingDraughtingCallout));set_attribute_value(3, (v4_RelatedDraughtingCallout));; populate_derived(); }

// Function implementations for IfcDimensionalExponents
int Ifc2x3::IfcDimensionalExponents::LengthExponent() const {  int v = get_attribute_value(0); return v; }
void Ifc2x3::IfcDimensionalExponents::setLengthExponent(const int& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
int Ifc2x3::IfcDimensionalExponents::MassExponent() const {  int v = get_attribute_value(1); return v; }
void Ifc2x3::IfcDimensionalExponents::setMassExponent(const int& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
int Ifc2x3::IfcDimensionalExponents::TimeExponent() const {  int v = get_attribute_value(2); return v; }
void Ifc2x3::IfcDimensionalExponents::setTimeExponent(const int& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
int Ifc2x3::IfcDimensionalExponents::ElectricCurrentExponent() const {  int v = get_attribute_value(3); return v; }
void Ifc2x3::IfcDimensionalExponents::setElectricCurrentExponent(const int& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
int Ifc2x3::IfcDimensionalExponents::ThermodynamicTemperatureExponent() const {  int v = get_attribute_value(4); return v; }
void Ifc2x3::IfcDimensionalExponents::setThermodynamicTemperatureExponent(const int& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
int Ifc2x3::IfcDimensionalExponents::AmountOfSubstanceExponent() const {  int v = get_attribute_value(5); return v; }
void Ifc2x3::IfcDimensionalExponents::setAmountOfSubstanceExponent(const int& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
int Ifc2x3::IfcDimensionalExponents::LuminousIntensityExponent() const {  int v = get_attribute_value(6); return v; }
void Ifc2x3::IfcDimensionalExponents::setLuminousIntensityExponent(const int& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcDimensionalExponents::declaration() const { return *((IfcParse::entity*)IFC2X3_types[218]); }
const IfcParse::entity& Ifc2x3::IfcDimensionalExponents::Class() { return *((IfcParse::entity*)IFC2X3_types[218]); }
// Ifc2x3::IfcDimensionalExponents::IfcDimensionalExponents(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDimensionalExponents::IfcDimensionalExponents(int v1_LengthExponent, int v2_MassExponent, int v3_TimeExponent, int v4_ElectricCurrentExponent, int v5_ThermodynamicTemperatureExponent, int v6_AmountOfSubstanceExponent, int v7_LuminousIntensityExponent) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_LengthExponent));set_attribute_value(1, (v2_MassExponent));set_attribute_value(2, (v3_TimeExponent));set_attribute_value(3, (v4_ElectricCurrentExponent));set_attribute_value(4, (v5_ThermodynamicTemperatureExponent));set_attribute_value(5, (v6_AmountOfSubstanceExponent));set_attribute_value(6, (v7_LuminousIntensityExponent));; populate_derived(); }

// Function implementations for IfcDirection
std::vector< double > /*[2:3]*/ Ifc2x3::IfcDirection::DirectionRatios() const {  std::vector< double > /*[2:3]*/ v = get_attribute_value(0); return v; }
void Ifc2x3::IfcDirection::setDirectionRatios(const std::vector< double > /*[2:3]*/& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcDirection::declaration() const { return *((IfcParse::entity*)IFC2X3_types[226]); }
const IfcParse::entity& Ifc2x3::IfcDirection::Class() { return *((IfcParse::entity*)IFC2X3_types[226]); }
// Ifc2x3::IfcDirection::IfcDirection(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcDirection::IfcDirection(std::vector< double > /*[2:3]*/ v1_DirectionRatios) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_DirectionRatios));; populate_derived(); }

// Function implementations for IfcDiscreteAccessory


// const IfcParse::entity& Ifc2x3::IfcDiscreteAccessory::declaration() const { return *((IfcParse::entity*)IFC2X3_types[228]); }
const IfcParse::entity& Ifc2x3::IfcDiscreteAccessory::Class() { return *((IfcParse::entity*)IFC2X3_types[228]); }
// Ifc2x3::IfcDiscreteAccessory::IfcDiscreteAccessory(const std::weak_ptr<InstanceData>& e) : IfcElementComponent(e) { }
// Ifc2x3::IfcDiscreteAccessory::IfcDiscreteAccessory(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElementComponent(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcDiscreteAccessoryType


// const IfcParse::entity& Ifc2x3::IfcDiscreteAccessoryType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[229]); }
const IfcParse::entity& Ifc2x3::IfcDiscreteAccessoryType::Class() { return *((IfcParse::entity*)IFC2X3_types[229]); }
// Ifc2x3::IfcDiscreteAccessoryType::IfcDiscreteAccessoryType(const std::weak_ptr<InstanceData>& e) : IfcElementComponentType(e) { }
// Ifc2x3::IfcDiscreteAccessoryType::IfcDiscreteAccessoryType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcElementComponentType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcDistributionChamberElement


// const IfcParse::entity& Ifc2x3::IfcDistributionChamberElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[230]); }
const IfcParse::entity& Ifc2x3::IfcDistributionChamberElement::Class() { return *((IfcParse::entity*)IFC2X3_types[230]); }
// Ifc2x3::IfcDistributionChamberElement::IfcDistributionChamberElement(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcDistributionChamberElement::IfcDistributionChamberElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcDistributionChamberElementType
::Ifc2x3::IfcDistributionChamberElementTypeEnum::Value Ifc2x3::IfcDistributionChamberElementType::PredefinedType() const {  return ::Ifc2x3::IfcDistributionChamberElementTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcDistributionChamberElementType::setPredefinedType(const ::Ifc2x3::IfcDistributionChamberElementTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcDistributionChamberElementTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcDistributionChamberElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[231]); }
const IfcParse::entity& Ifc2x3::IfcDistributionChamberElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[231]); }
// Ifc2x3::IfcDistributionChamberElementType::IfcDistributionChamberElementType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcDistributionChamberElementType::IfcDistributionChamberElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcDistributionChamberElementTypeEnum::Value v10_PredefinedType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcDistributionChamberElementTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcDistributionControlElement
std::optional< std::string > Ifc2x3::IfcDistributionControlElement::ControlElementId() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcDistributionControlElement::setControlElementId(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }

std::vector<::Ifc2x3::IfcRelFlowControlElements> Ifc2x3::IfcDistributionControlElement::AssignedToFlowElement() const { return cast_vector<IfcRelFlowControlElements>(file()->getInverse(data()->id(), IFC2X3_types[706], 4)); }

// const IfcParse::entity& Ifc2x3::IfcDistributionControlElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[233]); }
const IfcParse::entity& Ifc2x3::IfcDistributionControlElement::Class() { return *((IfcParse::entity*)IFC2X3_types[233]); }
// Ifc2x3::IfcDistributionControlElement::IfcDistributionControlElement(const std::weak_ptr<InstanceData>& e) : IfcDistributionElement(e) { }
// Ifc2x3::IfcDistributionControlElement::IfcDistributionControlElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ControlElementId) : IfcDistributionElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ControlElementId) {set_attribute_value(8, (*v9_ControlElementId)); }; populate_derived(); }

// Function implementations for IfcDistributionControlElementType


// const IfcParse::entity& Ifc2x3::IfcDistributionControlElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[234]); }
const IfcParse::entity& Ifc2x3::IfcDistributionControlElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[234]); }
// Ifc2x3::IfcDistributionControlElementType::IfcDistributionControlElementType(const std::weak_ptr<InstanceData>& e) : IfcDistributionElementType(e) { }
// Ifc2x3::IfcDistributionControlElementType::IfcDistributionControlElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcDistributionElement


// const IfcParse::entity& Ifc2x3::IfcDistributionElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[235]); }
const IfcParse::entity& Ifc2x3::IfcDistributionElement::Class() { return *((IfcParse::entity*)IFC2X3_types[235]); }
// Ifc2x3::IfcDistributionElement::IfcDistributionElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcDistributionElement::IfcDistributionElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcDistributionElementType


// const IfcParse::entity& Ifc2x3::IfcDistributionElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[236]); }
const IfcParse::entity& Ifc2x3::IfcDistributionElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[236]); }
// Ifc2x3::IfcDistributionElementType::IfcDistributionElementType(const std::weak_ptr<InstanceData>& e) : IfcElementType(e) { }
// Ifc2x3::IfcDistributionElementType::IfcDistributionElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcDistributionFlowElement

std::vector<::Ifc2x3::IfcRelFlowControlElements> Ifc2x3::IfcDistributionFlowElement::HasControlElements() const { return cast_vector<IfcRelFlowControlElements>(file()->getInverse(data()->id(), IFC2X3_types[706], 5)); }

// const IfcParse::entity& Ifc2x3::IfcDistributionFlowElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[237]); }
const IfcParse::entity& Ifc2x3::IfcDistributionFlowElement::Class() { return *((IfcParse::entity*)IFC2X3_types[237]); }
// Ifc2x3::IfcDistributionFlowElement::IfcDistributionFlowElement(const std::weak_ptr<InstanceData>& e) : IfcDistributionElement(e) { }
// Ifc2x3::IfcDistributionFlowElement::IfcDistributionFlowElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcDistributionFlowElementType


// const IfcParse::entity& Ifc2x3::IfcDistributionFlowElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[238]); }
const IfcParse::entity& Ifc2x3::IfcDistributionFlowElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[238]); }
// Ifc2x3::IfcDistributionFlowElementType::IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>& e) : IfcDistributionElementType(e) { }
// Ifc2x3::IfcDistributionFlowElementType::IfcDistributionFlowElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcDistributionPort
std::optional< ::Ifc2x3::IfcFlowDirectionEnum::Value > Ifc2x3::IfcDistributionPort::FlowDirection() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcFlowDirectionEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcDistributionPort::setFlowDirection(const std::optional< ::Ifc2x3::IfcFlowDirectionEnum::Value >& v) { if (v) {set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcFlowDirectionEnum::Class(), (size_t) *v));} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcDistributionPort::declaration() const { return *((IfcParse::entity*)IFC2X3_types[239]); }
const IfcParse::entity& Ifc2x3::IfcDistributionPort::Class() { return *((IfcParse::entity*)IFC2X3_types[239]); }
// Ifc2x3::IfcDistributionPort::IfcDistributionPort(const std::weak_ptr<InstanceData>& e) : IfcPort(e) { }
// Ifc2x3::IfcDistributionPort::IfcDistributionPort(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< ::Ifc2x3::IfcFlowDirectionEnum::Value > v8_FlowDirection) : IfcPort(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_FlowDirection) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcFlowDirectionEnum::Class(),(size_t)*v8_FlowDirection))); }; populate_derived(); }

// Function implementations for IfcDocumentElectronicFormat
std::optional< std::string > Ifc2x3::IfcDocumentElectronicFormat::FileExtension() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcDocumentElectronicFormat::setFileExtension(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcDocumentElectronicFormat::MimeContentType() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcDocumentElectronicFormat::setMimeContentType(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcDocumentElectronicFormat::MimeSubtype() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcDocumentElectronicFormat::setMimeSubtype(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }


// const IfcParse::entity& Ifc2x3::IfcDocumentElectronicFormat::declaration() const { return *((IfcParse::entity*)IFC2X3_types[241]); }
const IfcParse::entity& Ifc2x3::IfcDocumentElectronicFormat::Class() { return *((IfcParse::entity*)IFC2X3_types[241]); }
// Ifc2x3::IfcDocumentElectronicFormat::IfcDocumentElectronicFormat(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDocumentElectronicFormat::IfcDocumentElectronicFormat(std::optional< std::string > v1_FileExtension, std::optional< std::string > v2_MimeContentType, std::optional< std::string > v3_MimeSubtype) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_FileExtension) {set_attribute_value(0, (*v1_FileExtension)); } if (v2_MimeContentType) {set_attribute_value(1, (*v2_MimeContentType)); } if (v3_MimeSubtype) {set_attribute_value(2, (*v3_MimeSubtype)); }; populate_derived(); }

// Function implementations for IfcDocumentInformation
std::string Ifc2x3::IfcDocumentInformation::DocumentId() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcDocumentInformation::setDocumentId(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::string Ifc2x3::IfcDocumentInformation::Name() const {  std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcDocumentInformation::setName(const std::string& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcDocumentInformation::Description() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcDocumentInformation::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::vector< ::Ifc2x3::IfcDocumentReference > > Ifc2x3::IfcDocumentInformation::DocumentReferences() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcDocumentReference>(es); }
void Ifc2x3::IfcDocumentInformation::setDocumentReferences(const std::optional< std::vector< ::Ifc2x3::IfcDocumentReference > >& v) { if (v) {set_attribute_value(3, cast_vector<express::Base>(*v));} else {unset_attribute_value(3);} }
std::optional< std::string > Ifc2x3::IfcDocumentInformation::Purpose() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcDocumentInformation::setPurpose(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< std::string > Ifc2x3::IfcDocumentInformation::IntendedUse() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcDocumentInformation::setIntendedUse(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< std::string > Ifc2x3::IfcDocumentInformation::Scope() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcDocumentInformation::setScope(const std::optional< std::string >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< std::string > Ifc2x3::IfcDocumentInformation::Revision() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcDocumentInformation::setRevision(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
::Ifc2x3::IfcActorSelect Ifc2x3::IfcDocumentInformation::DocumentOwner() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcActorSelect{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcDocumentInformation::setDocumentOwner(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
std::optional< std::vector< ::Ifc2x3::IfcActorSelect > > Ifc2x3::IfcDocumentInformation::Editors() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(9); return cast_vector<::Ifc2x3::IfcActorSelect>(es); }
void Ifc2x3::IfcDocumentInformation::setEditors(const std::optional< std::vector< ::Ifc2x3::IfcActorSelect > >& v) { if (v) {set_attribute_value(9, cast_vector<express::Base>(*v));} else {unset_attribute_value(9);} }
::Ifc2x3::IfcDateAndTime Ifc2x3::IfcDocumentInformation::CreationTime() const { if(get_attribute_value(10).isNull()) { return ::Ifc2x3::IfcDateAndTime{}; } return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcDateAndTime>(); }
void Ifc2x3::IfcDocumentInformation::setCreationTime(const ::Ifc2x3::IfcDateAndTime& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
::Ifc2x3::IfcDateAndTime Ifc2x3::IfcDocumentInformation::LastRevisionTime() const { if(get_attribute_value(11).isNull()) { return ::Ifc2x3::IfcDateAndTime{}; } return ((express::Base)(get_attribute_value(11))).as<::Ifc2x3::IfcDateAndTime>(); }
void Ifc2x3::IfcDocumentInformation::setLastRevisionTime(const ::Ifc2x3::IfcDateAndTime& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
::Ifc2x3::IfcDocumentElectronicFormat Ifc2x3::IfcDocumentInformation::ElectronicFormat() const { if(get_attribute_value(12).isNull()) { return ::Ifc2x3::IfcDocumentElectronicFormat{}; } return ((express::Base)(get_attribute_value(12))).as<::Ifc2x3::IfcDocumentElectronicFormat>(); }
void Ifc2x3::IfcDocumentInformation::setElectronicFormat(const ::Ifc2x3::IfcDocumentElectronicFormat& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
::Ifc2x3::IfcCalendarDate Ifc2x3::IfcDocumentInformation::ValidFrom() const { if(get_attribute_value(13).isNull()) { return ::Ifc2x3::IfcCalendarDate{}; } return ((express::Base)(get_attribute_value(13))).as<::Ifc2x3::IfcCalendarDate>(); }
void Ifc2x3::IfcDocumentInformation::setValidFrom(const ::Ifc2x3::IfcCalendarDate& v) { set_attribute_value(13, v);if constexpr (false)unset_attribute_value(13); }
::Ifc2x3::IfcCalendarDate Ifc2x3::IfcDocumentInformation::ValidUntil() const { if(get_attribute_value(14).isNull()) { return ::Ifc2x3::IfcCalendarDate{}; } return ((express::Base)(get_attribute_value(14))).as<::Ifc2x3::IfcCalendarDate>(); }
void Ifc2x3::IfcDocumentInformation::setValidUntil(const ::Ifc2x3::IfcCalendarDate& v) { set_attribute_value(14, v);if constexpr (false)unset_attribute_value(14); }
std::optional< ::Ifc2x3::IfcDocumentConfidentialityEnum::Value > Ifc2x3::IfcDocumentInformation::Confidentiality() const { if(get_attribute_value(15).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcDocumentConfidentialityEnum::FromString(get_attribute_value(15)); }
void Ifc2x3::IfcDocumentInformation::setConfidentiality(const std::optional< ::Ifc2x3::IfcDocumentConfidentialityEnum::Value >& v) { if (v) {set_attribute_value(15, EnumerationReference(&::Ifc2x3::IfcDocumentConfidentialityEnum::Class(), (size_t) *v));} else {unset_attribute_value(15);} }
std::optional< ::Ifc2x3::IfcDocumentStatusEnum::Value > Ifc2x3::IfcDocumentInformation::Status() const { if(get_attribute_value(16).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcDocumentStatusEnum::FromString(get_attribute_value(16)); }
void Ifc2x3::IfcDocumentInformation::setStatus(const std::optional< ::Ifc2x3::IfcDocumentStatusEnum::Value >& v) { if (v) {set_attribute_value(16, EnumerationReference(&::Ifc2x3::IfcDocumentStatusEnum::Class(), (size_t) *v));} else {unset_attribute_value(16);} }

std::vector<::Ifc2x3::IfcDocumentInformationRelationship> Ifc2x3::IfcDocumentInformation::IsPointedTo() const { return cast_vector<IfcDocumentInformationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[243], 1)); }
std::vector<::Ifc2x3::IfcDocumentInformationRelationship> Ifc2x3::IfcDocumentInformation::IsPointer() const { return cast_vector<IfcDocumentInformationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[243], 0)); }

// const IfcParse::entity& Ifc2x3::IfcDocumentInformation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[242]); }
const IfcParse::entity& Ifc2x3::IfcDocumentInformation::Class() { return *((IfcParse::entity*)IFC2X3_types[242]); }
// Ifc2x3::IfcDocumentInformation::IfcDocumentInformation(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDocumentInformation::IfcDocumentInformation(std::string v1_DocumentId, std::string v2_Name, std::optional< std::string > v3_Description, std::optional< std::vector< ::Ifc2x3::IfcDocumentReference > > v4_DocumentReferences, std::optional< std::string > v5_Purpose, std::optional< std::string > v6_IntendedUse, std::optional< std::string > v7_Scope, std::optional< std::string > v8_Revision, ::Ifc2x3::IfcActorSelect v9_DocumentOwner, std::optional< std::vector< ::Ifc2x3::IfcActorSelect > > v10_Editors, ::Ifc2x3::IfcDateAndTime v11_CreationTime, ::Ifc2x3::IfcDateAndTime v12_LastRevisionTime, ::Ifc2x3::IfcDocumentElectronicFormat v13_ElectronicFormat, ::Ifc2x3::IfcCalendarDate v14_ValidFrom, ::Ifc2x3::IfcCalendarDate v15_ValidUntil, std::optional< ::Ifc2x3::IfcDocumentConfidentialityEnum::Value > v16_Confidentiality, std::optional< ::Ifc2x3::IfcDocumentStatusEnum::Value > v17_Status) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(17))) { set_attribute_value(0, (v1_DocumentId));set_attribute_value(1, (v2_Name)); if (v3_Description) {set_attribute_value(2, (*v3_Description)); } if (v4_DocumentReferences) {set_attribute_value(3, (*v4_DocumentReferences)->generalize()); } if (v5_Purpose) {set_attribute_value(4, (*v5_Purpose)); } if (v6_IntendedUse) {set_attribute_value(5, (*v6_IntendedUse)); } if (v7_Scope) {set_attribute_value(6, (*v7_Scope)); } if (v8_Revision) {set_attribute_value(7, (*v8_Revision)); } if (v9_DocumentOwner) {set_attribute_value(8, (*v9_DocumentOwner)); } if (v10_Editors) {set_attribute_value(9, (*v10_Editors)->generalize()); } if (v11_CreationTime) {set_attribute_value(10, (*v11_CreationTime)); } if (v12_LastRevisionTime) {set_attribute_value(11, (*v12_LastRevisionTime)); } if (v13_ElectronicFormat) {set_attribute_value(12, (*v13_ElectronicFormat)); } if (v14_ValidFrom) {set_attribute_value(13, (*v14_ValidFrom)); } if (v15_ValidUntil) {set_attribute_value(14, (*v15_ValidUntil)); } if (v16_Confidentiality) {set_attribute_value(15, (EnumerationReference(&::Ifc2x3::IfcDocumentConfidentialityEnum::Class(),(size_t)*v16_Confidentiality))); } if (v17_Status) {set_attribute_value(16, (EnumerationReference(&::Ifc2x3::IfcDocumentStatusEnum::Class(),(size_t)*v17_Status))); }; populate_derived(); }

// Function implementations for IfcDocumentInformationRelationship
::Ifc2x3::IfcDocumentInformation Ifc2x3::IfcDocumentInformationRelationship::RelatingDocument() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcDocumentInformation>(); }
void Ifc2x3::IfcDocumentInformationRelationship::setRelatingDocument(const ::Ifc2x3::IfcDocumentInformation& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcDocumentInformation > Ifc2x3::IfcDocumentInformationRelationship::RelatedDocuments() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcDocumentInformation>(es); }
void Ifc2x3::IfcDocumentInformationRelationship::setRelatedDocuments(const std::vector< ::Ifc2x3::IfcDocumentInformation >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcDocumentInformationRelationship::RelationshipType() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcDocumentInformationRelationship::setRelationshipType(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }


// const IfcParse::entity& Ifc2x3::IfcDocumentInformationRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[243]); }
const IfcParse::entity& Ifc2x3::IfcDocumentInformationRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[243]); }
// Ifc2x3::IfcDocumentInformationRelationship::IfcDocumentInformationRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDocumentInformationRelationship::IfcDocumentInformationRelationship(::Ifc2x3::IfcDocumentInformation v1_RelatingDocument, std::vector< ::Ifc2x3::IfcDocumentInformation > v2_RelatedDocuments, std::optional< std::string > v3_RelationshipType) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_RelatingDocument));set_attribute_value(1, (v2_RelatedDocuments)->generalize()); if (v3_RelationshipType) {set_attribute_value(2, (*v3_RelationshipType)); }; populate_derived(); }

// Function implementations for IfcDocumentReference

std::vector<::Ifc2x3::IfcDocumentInformation> Ifc2x3::IfcDocumentReference::ReferenceToDocument() const { return cast_vector<IfcDocumentInformation>(file()->getInverse(data()->id(), IFC2X3_types[242], 3)); }

// const IfcParse::entity& Ifc2x3::IfcDocumentReference::declaration() const { return *((IfcParse::entity*)IFC2X3_types[244]); }
const IfcParse::entity& Ifc2x3::IfcDocumentReference::Class() { return *((IfcParse::entity*)IFC2X3_types[244]); }
// Ifc2x3::IfcDocumentReference::IfcDocumentReference(const std::weak_ptr<InstanceData>& e) : IfcExternalReference(e) { }
// Ifc2x3::IfcDocumentReference::IfcDocumentReference(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name) : IfcExternalReference(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcDoor
std::optional< double > Ifc2x3::IfcDoor::OverallHeight() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcDoor::setOverallHeight(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcDoor::OverallWidth() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcDoor::setOverallWidth(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcDoor::declaration() const { return *((IfcParse::entity*)IFC2X3_types[247]); }
const IfcParse::entity& Ifc2x3::IfcDoor::Class() { return *((IfcParse::entity*)IFC2X3_types[247]); }
// Ifc2x3::IfcDoor::IfcDoor(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcDoor::IfcDoor(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< double > v9_OverallHeight, std::optional< double > v10_OverallWidth) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_OverallHeight) {set_attribute_value(8, (*v9_OverallHeight)); } if (v10_OverallWidth) {set_attribute_value(9, (*v10_OverallWidth)); }; populate_derived(); }

// Function implementations for IfcDoorLiningProperties
std::optional< double > Ifc2x3::IfcDoorLiningProperties::LiningDepth() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcDoorLiningProperties::setLiningDepth(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::LiningThickness() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcDoorLiningProperties::setLiningThickness(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::ThresholdDepth() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcDoorLiningProperties::setThresholdDepth(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::ThresholdThickness() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcDoorLiningProperties::setThresholdThickness(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::TransomThickness() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcDoorLiningProperties::setTransomThickness(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::TransomOffset() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcDoorLiningProperties::setTransomOffset(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::LiningOffset() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcDoorLiningProperties::setLiningOffset(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::ThresholdOffset() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcDoorLiningProperties::setThresholdOffset(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::CasingThickness() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcDoorLiningProperties::setCasingThickness(const std::optional< double >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }
std::optional< double > Ifc2x3::IfcDoorLiningProperties::CasingDepth() const { if(get_attribute_value(13).isNull()) { return std::nullopt; } double v = get_attribute_value(13); return v; }
void Ifc2x3::IfcDoorLiningProperties::setCasingDepth(const std::optional< double >& v) { if (v) {set_attribute_value(13, *v);} else {unset_attribute_value(13);} }
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcDoorLiningProperties::ShapeAspectStyle() const { if(get_attribute_value(14).isNull()) { return ::Ifc2x3::IfcShapeAspect{}; } return ((express::Base)(get_attribute_value(14))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcDoorLiningProperties::setShapeAspectStyle(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(14, v);if constexpr (false)unset_attribute_value(14); }


// const IfcParse::entity& Ifc2x3::IfcDoorLiningProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[248]); }
const IfcParse::entity& Ifc2x3::IfcDoorLiningProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[248]); }
// Ifc2x3::IfcDoorLiningProperties::IfcDoorLiningProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcDoorLiningProperties::IfcDoorLiningProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< double > v5_LiningDepth, std::optional< double > v6_LiningThickness, std::optional< double > v7_ThresholdDepth, std::optional< double > v8_ThresholdThickness, std::optional< double > v9_TransomThickness, std::optional< double > v10_TransomOffset, std::optional< double > v11_LiningOffset, std::optional< double > v12_ThresholdOffset, std::optional< double > v13_CasingThickness, std::optional< double > v14_CasingDepth, ::Ifc2x3::IfcShapeAspect v15_ShapeAspectStyle) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(15))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_LiningDepth) {set_attribute_value(4, (*v5_LiningDepth)); } if (v6_LiningThickness) {set_attribute_value(5, (*v6_LiningThickness)); } if (v7_ThresholdDepth) {set_attribute_value(6, (*v7_ThresholdDepth)); } if (v8_ThresholdThickness) {set_attribute_value(7, (*v8_ThresholdThickness)); } if (v9_TransomThickness) {set_attribute_value(8, (*v9_TransomThickness)); } if (v10_TransomOffset) {set_attribute_value(9, (*v10_TransomOffset)); } if (v11_LiningOffset) {set_attribute_value(10, (*v11_LiningOffset)); } if (v12_ThresholdOffset) {set_attribute_value(11, (*v12_ThresholdOffset)); } if (v13_CasingThickness) {set_attribute_value(12, (*v13_CasingThickness)); } if (v14_CasingDepth) {set_attribute_value(13, (*v14_CasingDepth)); } if (v15_ShapeAspectStyle) {set_attribute_value(14, (*v15_ShapeAspectStyle)); }; populate_derived(); }

// Function implementations for IfcDoorPanelProperties
std::optional< double > Ifc2x3::IfcDoorPanelProperties::PanelDepth() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcDoorPanelProperties::setPanelDepth(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
::Ifc2x3::IfcDoorPanelOperationEnum::Value Ifc2x3::IfcDoorPanelProperties::PanelOperation() const {  return ::Ifc2x3::IfcDoorPanelOperationEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcDoorPanelProperties::setPanelOperation(const ::Ifc2x3::IfcDoorPanelOperationEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcDoorPanelOperationEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
std::optional< double > Ifc2x3::IfcDoorPanelProperties::PanelWidth() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcDoorPanelProperties::setPanelWidth(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
::Ifc2x3::IfcDoorPanelPositionEnum::Value Ifc2x3::IfcDoorPanelProperties::PanelPosition() const {  return ::Ifc2x3::IfcDoorPanelPositionEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcDoorPanelProperties::setPanelPosition(const ::Ifc2x3::IfcDoorPanelPositionEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcDoorPanelPositionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcDoorPanelProperties::ShapeAspectStyle() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcShapeAspect{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcDoorPanelProperties::setShapeAspectStyle(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcDoorPanelProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[251]); }
const IfcParse::entity& Ifc2x3::IfcDoorPanelProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[251]); }
// Ifc2x3::IfcDoorPanelProperties::IfcDoorPanelProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcDoorPanelProperties::IfcDoorPanelProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< double > v5_PanelDepth, ::Ifc2x3::IfcDoorPanelOperationEnum::Value v6_PanelOperation, std::optional< double > v7_PanelWidth, ::Ifc2x3::IfcDoorPanelPositionEnum::Value v8_PanelPosition, ::Ifc2x3::IfcShapeAspect v9_ShapeAspectStyle) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_PanelDepth) {set_attribute_value(4, (*v5_PanelDepth)); }set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcDoorPanelOperationEnum::Class(),(size_t)v6_PanelOperation))); if (v7_PanelWidth) {set_attribute_value(6, (*v7_PanelWidth)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcDoorPanelPositionEnum::Class(),(size_t)v8_PanelPosition))); if (v9_ShapeAspectStyle) {set_attribute_value(8, (*v9_ShapeAspectStyle)); }; populate_derived(); }

// Function implementations for IfcDoorStyle
::Ifc2x3::IfcDoorStyleOperationEnum::Value Ifc2x3::IfcDoorStyle::OperationType() const {  return ::Ifc2x3::IfcDoorStyleOperationEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcDoorStyle::setOperationType(const ::Ifc2x3::IfcDoorStyleOperationEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcDoorStyleOperationEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcDoorStyleConstructionEnum::Value Ifc2x3::IfcDoorStyle::ConstructionType() const {  return ::Ifc2x3::IfcDoorStyleConstructionEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcDoorStyle::setConstructionType(const ::Ifc2x3::IfcDoorStyleConstructionEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcDoorStyleConstructionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }
bool Ifc2x3::IfcDoorStyle::ParameterTakesPrecedence() const {  bool v = get_attribute_value(10); return v; }
void Ifc2x3::IfcDoorStyle::setParameterTakesPrecedence(const bool& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
bool Ifc2x3::IfcDoorStyle::Sizeable() const {  bool v = get_attribute_value(11); return v; }
void Ifc2x3::IfcDoorStyle::setSizeable(const bool& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }


// const IfcParse::entity& Ifc2x3::IfcDoorStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[252]); }
const IfcParse::entity& Ifc2x3::IfcDoorStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[252]); }
// Ifc2x3::IfcDoorStyle::IfcDoorStyle(const std::weak_ptr<InstanceData>& e) : IfcTypeProduct(e) { }
// Ifc2x3::IfcDoorStyle::IfcDoorStyle(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcDoorStyleOperationEnum::Value v9_OperationType, ::Ifc2x3::IfcDoorStyleConstructionEnum::Value v10_ConstructionType, bool v11_ParameterTakesPrecedence, bool v12_Sizeable) : IfcTypeProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcDoorStyleOperationEnum::Class(),(size_t)v9_OperationType)));set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcDoorStyleConstructionEnum::Class(),(size_t)v10_ConstructionType)));set_attribute_value(10, (v11_ParameterTakesPrecedence));set_attribute_value(11, (v12_Sizeable));; populate_derived(); }

// Function implementations for IfcDraughtingCallout
std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > Ifc2x3::IfcDraughtingCallout::Contents() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcDraughtingCalloutElement>(es); }
void Ifc2x3::IfcDraughtingCallout::setContents(const std::vector< ::Ifc2x3::IfcDraughtingCalloutElement >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }

std::vector<::Ifc2x3::IfcDraughtingCalloutRelationship> Ifc2x3::IfcDraughtingCallout::IsRelatedFromCallout() const { return cast_vector<IfcDraughtingCalloutRelationship>(file()->getInverse(data()->id(), IFC2X3_types[258], 3)); }
std::vector<::Ifc2x3::IfcDraughtingCalloutRelationship> Ifc2x3::IfcDraughtingCallout::IsRelatedToCallout() const { return cast_vector<IfcDraughtingCalloutRelationship>(file()->getInverse(data()->id(), IFC2X3_types[258], 2)); }

// const IfcParse::entity& Ifc2x3::IfcDraughtingCallout::declaration() const { return *((IfcParse::entity*)IFC2X3_types[256]); }
const IfcParse::entity& Ifc2x3::IfcDraughtingCallout::Class() { return *((IfcParse::entity*)IFC2X3_types[256]); }
// Ifc2x3::IfcDraughtingCallout::IfcDraughtingCallout(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcDraughtingCallout::IfcDraughtingCallout(std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > v1_Contents) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Contents)->generalize());; populate_derived(); }

// Function implementations for IfcDraughtingCalloutRelationship
std::optional< std::string > Ifc2x3::IfcDraughtingCalloutRelationship::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcDraughtingCalloutRelationship::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcDraughtingCalloutRelationship::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcDraughtingCalloutRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcDraughtingCallout Ifc2x3::IfcDraughtingCalloutRelationship::RelatingDraughtingCallout() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcDraughtingCallout>(); }
void Ifc2x3::IfcDraughtingCalloutRelationship::setRelatingDraughtingCallout(const ::Ifc2x3::IfcDraughtingCallout& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcDraughtingCallout Ifc2x3::IfcDraughtingCalloutRelationship::RelatedDraughtingCallout() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcDraughtingCallout>(); }
void Ifc2x3::IfcDraughtingCalloutRelationship::setRelatedDraughtingCallout(const ::Ifc2x3::IfcDraughtingCallout& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcDraughtingCalloutRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[258]); }
const IfcParse::entity& Ifc2x3::IfcDraughtingCalloutRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[258]); }
// Ifc2x3::IfcDraughtingCalloutRelationship::IfcDraughtingCalloutRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcDraughtingCalloutRelationship::IfcDraughtingCalloutRelationship(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcDraughtingCallout v3_RelatingDraughtingCallout, ::Ifc2x3::IfcDraughtingCallout v4_RelatedDraughtingCallout) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_RelatingDraughtingCallout));set_attribute_value(3, (v4_RelatedDraughtingCallout));; populate_derived(); }

// Function implementations for IfcDraughtingPreDefinedColour


// const IfcParse::entity& Ifc2x3::IfcDraughtingPreDefinedColour::declaration() const { return *((IfcParse::entity*)IFC2X3_types[259]); }
const IfcParse::entity& Ifc2x3::IfcDraughtingPreDefinedColour::Class() { return *((IfcParse::entity*)IFC2X3_types[259]); }
// Ifc2x3::IfcDraughtingPreDefinedColour::IfcDraughtingPreDefinedColour(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedColour(e) { }
// Ifc2x3::IfcDraughtingPreDefinedColour::IfcDraughtingPreDefinedColour(std::string v1_Name) : IfcPreDefinedColour(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcDraughtingPreDefinedCurveFont


// const IfcParse::entity& Ifc2x3::IfcDraughtingPreDefinedCurveFont::declaration() const { return *((IfcParse::entity*)IFC2X3_types[260]); }
const IfcParse::entity& Ifc2x3::IfcDraughtingPreDefinedCurveFont::Class() { return *((IfcParse::entity*)IFC2X3_types[260]); }
// Ifc2x3::IfcDraughtingPreDefinedCurveFont::IfcDraughtingPreDefinedCurveFont(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedCurveFont(e) { }
// Ifc2x3::IfcDraughtingPreDefinedCurveFont::IfcDraughtingPreDefinedCurveFont(std::string v1_Name) : IfcPreDefinedCurveFont(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcDraughtingPreDefinedTextFont


// const IfcParse::entity& Ifc2x3::IfcDraughtingPreDefinedTextFont::declaration() const { return *((IfcParse::entity*)IFC2X3_types[261]); }
const IfcParse::entity& Ifc2x3::IfcDraughtingPreDefinedTextFont::Class() { return *((IfcParse::entity*)IFC2X3_types[261]); }
// Ifc2x3::IfcDraughtingPreDefinedTextFont::IfcDraughtingPreDefinedTextFont(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedTextFont(e) { }
// Ifc2x3::IfcDraughtingPreDefinedTextFont::IfcDraughtingPreDefinedTextFont(std::string v1_Name) : IfcPreDefinedTextFont(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcDuctFittingType
::Ifc2x3::IfcDuctFittingTypeEnum::Value Ifc2x3::IfcDuctFittingType::PredefinedType() const {  return ::Ifc2x3::IfcDuctFittingTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcDuctFittingType::setPredefinedType(const ::Ifc2x3::IfcDuctFittingTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcDuctFittingTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcDuctFittingType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[262]); }
const IfcParse::entity& Ifc2x3::IfcDuctFittingType::Class() { return *((IfcParse::entity*)IFC2X3_types[262]); }
// Ifc2x3::IfcDuctFittingType::IfcDuctFittingType(const std::weak_ptr<InstanceData>& e) : IfcFlowFittingType(e) { }
// Ifc2x3::IfcDuctFittingType::IfcDuctFittingType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcDuctFittingTypeEnum::Value v10_PredefinedType) : IfcFlowFittingType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcDuctFittingTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcDuctSegmentType
::Ifc2x3::IfcDuctSegmentTypeEnum::Value Ifc2x3::IfcDuctSegmentType::PredefinedType() const {  return ::Ifc2x3::IfcDuctSegmentTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcDuctSegmentType::setPredefinedType(const ::Ifc2x3::IfcDuctSegmentTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcDuctSegmentTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcDuctSegmentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[264]); }
const IfcParse::entity& Ifc2x3::IfcDuctSegmentType::Class() { return *((IfcParse::entity*)IFC2X3_types[264]); }
// Ifc2x3::IfcDuctSegmentType::IfcDuctSegmentType(const std::weak_ptr<InstanceData>& e) : IfcFlowSegmentType(e) { }
// Ifc2x3::IfcDuctSegmentType::IfcDuctSegmentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcDuctSegmentTypeEnum::Value v10_PredefinedType) : IfcFlowSegmentType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcDuctSegmentTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcDuctSilencerType
::Ifc2x3::IfcDuctSilencerTypeEnum::Value Ifc2x3::IfcDuctSilencerType::PredefinedType() const {  return ::Ifc2x3::IfcDuctSilencerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcDuctSilencerType::setPredefinedType(const ::Ifc2x3::IfcDuctSilencerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcDuctSilencerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcDuctSilencerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[266]); }
const IfcParse::entity& Ifc2x3::IfcDuctSilencerType::Class() { return *((IfcParse::entity*)IFC2X3_types[266]); }
// Ifc2x3::IfcDuctSilencerType::IfcDuctSilencerType(const std::weak_ptr<InstanceData>& e) : IfcFlowTreatmentDeviceType(e) { }
// Ifc2x3::IfcDuctSilencerType::IfcDuctSilencerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcDuctSilencerTypeEnum::Value v10_PredefinedType) : IfcFlowTreatmentDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcDuctSilencerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcEdge
::Ifc2x3::IfcVertex Ifc2x3::IfcEdge::EdgeStart() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcVertex>(); }
void Ifc2x3::IfcEdge::setEdgeStart(const ::Ifc2x3::IfcVertex& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcVertex Ifc2x3::IfcEdge::EdgeEnd() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcVertex>(); }
void Ifc2x3::IfcEdge::setEdgeEnd(const ::Ifc2x3::IfcVertex& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcEdge::declaration() const { return *((IfcParse::entity*)IFC2X3_types[269]); }
const IfcParse::entity& Ifc2x3::IfcEdge::Class() { return *((IfcParse::entity*)IFC2X3_types[269]); }
// Ifc2x3::IfcEdge::IfcEdge(const std::weak_ptr<InstanceData>& e) : IfcTopologicalRepresentationItem(e) { }
// Ifc2x3::IfcEdge::IfcEdge(::Ifc2x3::IfcVertex v1_EdgeStart, ::Ifc2x3::IfcVertex v2_EdgeEnd) : IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_EdgeStart));set_attribute_value(1, (v2_EdgeEnd));; populate_derived(); }

// Function implementations for IfcEdgeCurve
::Ifc2x3::IfcCurve Ifc2x3::IfcEdgeCurve::EdgeGeometry() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcEdgeCurve::setEdgeGeometry(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
bool Ifc2x3::IfcEdgeCurve::SameSense() const {  bool v = get_attribute_value(3); return v; }
void Ifc2x3::IfcEdgeCurve::setSameSense(const bool& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcEdgeCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[270]); }
const IfcParse::entity& Ifc2x3::IfcEdgeCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[270]); }
// Ifc2x3::IfcEdgeCurve::IfcEdgeCurve(const std::weak_ptr<InstanceData>& e) : IfcEdge(e) { }
// Ifc2x3::IfcEdgeCurve::IfcEdgeCurve(::Ifc2x3::IfcVertex v1_EdgeStart, ::Ifc2x3::IfcVertex v2_EdgeEnd, ::Ifc2x3::IfcCurve v3_EdgeGeometry, bool v4_SameSense) : IfcEdge(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_EdgeStart));set_attribute_value(1, (v2_EdgeEnd));set_attribute_value(2, (v3_EdgeGeometry));set_attribute_value(3, (v4_SameSense));; populate_derived(); }

// Function implementations for IfcEdgeFeature
std::optional< double > Ifc2x3::IfcEdgeFeature::FeatureLength() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcEdgeFeature::setFeatureLength(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcEdgeFeature::declaration() const { return *((IfcParse::entity*)IFC2X3_types[271]); }
const IfcParse::entity& Ifc2x3::IfcEdgeFeature::Class() { return *((IfcParse::entity*)IFC2X3_types[271]); }
// Ifc2x3::IfcEdgeFeature::IfcEdgeFeature(const std::weak_ptr<InstanceData>& e) : IfcFeatureElementSubtraction(e) { }
// Ifc2x3::IfcEdgeFeature::IfcEdgeFeature(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< double > v9_FeatureLength) : IfcFeatureElementSubtraction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_FeatureLength) {set_attribute_value(8, (*v9_FeatureLength)); }; populate_derived(); }

// Function implementations for IfcEdgeLoop
std::vector< ::Ifc2x3::IfcOrientedEdge > Ifc2x3::IfcEdgeLoop::EdgeList() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcOrientedEdge>(es); }
void Ifc2x3::IfcEdgeLoop::setEdgeList(const std::vector< ::Ifc2x3::IfcOrientedEdge >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcEdgeLoop::declaration() const { return *((IfcParse::entity*)IFC2X3_types[272]); }
const IfcParse::entity& Ifc2x3::IfcEdgeLoop::Class() { return *((IfcParse::entity*)IFC2X3_types[272]); }
// Ifc2x3::IfcEdgeLoop::IfcEdgeLoop(const std::weak_ptr<InstanceData>& e) : IfcLoop(e) { }
// Ifc2x3::IfcEdgeLoop::IfcEdgeLoop(std::vector< ::Ifc2x3::IfcOrientedEdge > v1_EdgeList) : IfcLoop(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_EdgeList)->generalize());; populate_derived(); }

// Function implementations for IfcElectricApplianceType
::Ifc2x3::IfcElectricApplianceTypeEnum::Value Ifc2x3::IfcElectricApplianceType::PredefinedType() const {  return ::Ifc2x3::IfcElectricApplianceTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcElectricApplianceType::setPredefinedType(const ::Ifc2x3::IfcElectricApplianceTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcElectricApplianceTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcElectricApplianceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[276]); }
const IfcParse::entity& Ifc2x3::IfcElectricApplianceType::Class() { return *((IfcParse::entity*)IFC2X3_types[276]); }
// Ifc2x3::IfcElectricApplianceType::IfcElectricApplianceType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcElectricApplianceType::IfcElectricApplianceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcElectricApplianceTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcElectricApplianceTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcElectricDistributionPoint
::Ifc2x3::IfcElectricDistributionPointFunctionEnum::Value Ifc2x3::IfcElectricDistributionPoint::DistributionPointFunction() const {  return ::Ifc2x3::IfcElectricDistributionPointFunctionEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcElectricDistributionPoint::setDistributionPointFunction(const ::Ifc2x3::IfcElectricDistributionPointFunctionEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcElectricDistributionPointFunctionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }
std::optional< std::string > Ifc2x3::IfcElectricDistributionPoint::UserDefinedFunction() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::string v = get_attribute_value(9); return v; }
void Ifc2x3::IfcElectricDistributionPoint::setUserDefinedFunction(const std::optional< std::string >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcElectricDistributionPoint::declaration() const { return *((IfcParse::entity*)IFC2X3_types[283]); }
const IfcParse::entity& Ifc2x3::IfcElectricDistributionPoint::Class() { return *((IfcParse::entity*)IFC2X3_types[283]); }
// Ifc2x3::IfcElectricDistributionPoint::IfcElectricDistributionPoint(const std::weak_ptr<InstanceData>& e) : IfcFlowController(e) { }
// Ifc2x3::IfcElectricDistributionPoint::IfcElectricDistributionPoint(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcElectricDistributionPointFunctionEnum::Value v9_DistributionPointFunction, std::optional< std::string > v10_UserDefinedFunction) : IfcFlowController(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcElectricDistributionPointFunctionEnum::Class(),(size_t)v9_DistributionPointFunction))); if (v10_UserDefinedFunction) {set_attribute_value(9, (*v10_UserDefinedFunction)); }; populate_derived(); }

// Function implementations for IfcElectricFlowStorageDeviceType
::Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Value Ifc2x3::IfcElectricFlowStorageDeviceType::PredefinedType() const {  return ::Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcElectricFlowStorageDeviceType::setPredefinedType(const ::Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcElectricFlowStorageDeviceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[285]); }
const IfcParse::entity& Ifc2x3::IfcElectricFlowStorageDeviceType::Class() { return *((IfcParse::entity*)IFC2X3_types[285]); }
// Ifc2x3::IfcElectricFlowStorageDeviceType::IfcElectricFlowStorageDeviceType(const std::weak_ptr<InstanceData>& e) : IfcFlowStorageDeviceType(e) { }
// Ifc2x3::IfcElectricFlowStorageDeviceType::IfcElectricFlowStorageDeviceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Value v10_PredefinedType) : IfcFlowStorageDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcElectricFlowStorageDeviceTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcElectricGeneratorType
::Ifc2x3::IfcElectricGeneratorTypeEnum::Value Ifc2x3::IfcElectricGeneratorType::PredefinedType() const {  return ::Ifc2x3::IfcElectricGeneratorTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcElectricGeneratorType::setPredefinedType(const ::Ifc2x3::IfcElectricGeneratorTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcElectricGeneratorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcElectricGeneratorType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[287]); }
const IfcParse::entity& Ifc2x3::IfcElectricGeneratorType::Class() { return *((IfcParse::entity*)IFC2X3_types[287]); }
// Ifc2x3::IfcElectricGeneratorType::IfcElectricGeneratorType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcElectricGeneratorType::IfcElectricGeneratorType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcElectricGeneratorTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcElectricGeneratorTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcElectricHeaterType
::Ifc2x3::IfcElectricHeaterTypeEnum::Value Ifc2x3::IfcElectricHeaterType::PredefinedType() const {  return ::Ifc2x3::IfcElectricHeaterTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcElectricHeaterType::setPredefinedType(const ::Ifc2x3::IfcElectricHeaterTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcElectricHeaterTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcElectricHeaterType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[289]); }
const IfcParse::entity& Ifc2x3::IfcElectricHeaterType::Class() { return *((IfcParse::entity*)IFC2X3_types[289]); }
// Ifc2x3::IfcElectricHeaterType::IfcElectricHeaterType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcElectricHeaterType::IfcElectricHeaterType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcElectricHeaterTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcElectricHeaterTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcElectricMotorType
::Ifc2x3::IfcElectricMotorTypeEnum::Value Ifc2x3::IfcElectricMotorType::PredefinedType() const {  return ::Ifc2x3::IfcElectricMotorTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcElectricMotorType::setPredefinedType(const ::Ifc2x3::IfcElectricMotorTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcElectricMotorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcElectricMotorType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[291]); }
const IfcParse::entity& Ifc2x3::IfcElectricMotorType::Class() { return *((IfcParse::entity*)IFC2X3_types[291]); }
// Ifc2x3::IfcElectricMotorType::IfcElectricMotorType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcElectricMotorType::IfcElectricMotorType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcElectricMotorTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcElectricMotorTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcElectricTimeControlType
::Ifc2x3::IfcElectricTimeControlTypeEnum::Value Ifc2x3::IfcElectricTimeControlType::PredefinedType() const {  return ::Ifc2x3::IfcElectricTimeControlTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcElectricTimeControlType::setPredefinedType(const ::Ifc2x3::IfcElectricTimeControlTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcElectricTimeControlTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcElectricTimeControlType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[294]); }
const IfcParse::entity& Ifc2x3::IfcElectricTimeControlType::Class() { return *((IfcParse::entity*)IFC2X3_types[294]); }
// Ifc2x3::IfcElectricTimeControlType::IfcElectricTimeControlType(const std::weak_ptr<InstanceData>& e) : IfcFlowControllerType(e) { }
// Ifc2x3::IfcElectricTimeControlType::IfcElectricTimeControlType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcElectricTimeControlTypeEnum::Value v10_PredefinedType) : IfcFlowControllerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcElectricTimeControlTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcElectricalBaseProperties
std::optional< ::Ifc2x3::IfcElectricCurrentEnum::Value > Ifc2x3::IfcElectricalBaseProperties::ElectricCurrentType() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcElectricCurrentEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcElectricalBaseProperties::setElectricCurrentType(const std::optional< ::Ifc2x3::IfcElectricCurrentEnum::Value >& v) { if (v) {set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcElectricCurrentEnum::Class(), (size_t) *v));} else {unset_attribute_value(6);} }
double Ifc2x3::IfcElectricalBaseProperties::InputVoltage() const {  double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcElectricalBaseProperties::setInputVoltage(const double& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
double Ifc2x3::IfcElectricalBaseProperties::InputFrequency() const {  double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcElectricalBaseProperties::setInputFrequency(const double& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
std::optional< double > Ifc2x3::IfcElectricalBaseProperties::FullLoadCurrent() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcElectricalBaseProperties::setFullLoadCurrent(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcElectricalBaseProperties::MinimumCircuitCurrent() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcElectricalBaseProperties::setMinimumCircuitCurrent(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcElectricalBaseProperties::MaximumPowerInput() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcElectricalBaseProperties::setMaximumPowerInput(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< double > Ifc2x3::IfcElectricalBaseProperties::RatedPowerInput() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcElectricalBaseProperties::setRatedPowerInput(const std::optional< double >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }
int Ifc2x3::IfcElectricalBaseProperties::InputPhase() const {  int v = get_attribute_value(13); return v; }
void Ifc2x3::IfcElectricalBaseProperties::setInputPhase(const int& v) { set_attribute_value(13, v);if constexpr (false)unset_attribute_value(13); }


// const IfcParse::entity& Ifc2x3::IfcElectricalBaseProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[273]); }
const IfcParse::entity& Ifc2x3::IfcElectricalBaseProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[273]); }
// Ifc2x3::IfcElectricalBaseProperties::IfcElectricalBaseProperties(const std::weak_ptr<InstanceData>& e) : IfcEnergyProperties(e) { }
// Ifc2x3::IfcElectricalBaseProperties::IfcElectricalBaseProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< ::Ifc2x3::IfcEnergySequenceEnum::Value > v5_EnergySequence, std::optional< std::string > v6_UserDefinedEnergySequence, std::optional< ::Ifc2x3::IfcElectricCurrentEnum::Value > v7_ElectricCurrentType, double v8_InputVoltage, double v9_InputFrequency, std::optional< double > v10_FullLoadCurrent, std::optional< double > v11_MinimumCircuitCurrent, std::optional< double > v12_MaximumPowerInput, std::optional< double > v13_RatedPowerInput, int v14_InputPhase) : IfcEnergyProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(14))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_EnergySequence) {set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcEnergySequenceEnum::Class(),(size_t)*v5_EnergySequence))); } if (v6_UserDefinedEnergySequence) {set_attribute_value(5, (*v6_UserDefinedEnergySequence)); } if (v7_ElectricCurrentType) {set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcElectricCurrentEnum::Class(),(size_t)*v7_ElectricCurrentType))); }set_attribute_value(7, (v8_InputVoltage));set_attribute_value(8, (v9_InputFrequency)); if (v10_FullLoadCurrent) {set_attribute_value(9, (*v10_FullLoadCurrent)); } if (v11_MinimumCircuitCurrent) {set_attribute_value(10, (*v11_MinimumCircuitCurrent)); } if (v12_MaximumPowerInput) {set_attribute_value(11, (*v12_MaximumPowerInput)); } if (v13_RatedPowerInput) {set_attribute_value(12, (*v13_RatedPowerInput)); }set_attribute_value(13, (v14_InputPhase));; populate_derived(); }

// Function implementations for IfcElectricalCircuit


// const IfcParse::entity& Ifc2x3::IfcElectricalCircuit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[274]); }
const IfcParse::entity& Ifc2x3::IfcElectricalCircuit::Class() { return *((IfcParse::entity*)IFC2X3_types[274]); }
// Ifc2x3::IfcElectricalCircuit::IfcElectricalCircuit(const std::weak_ptr<InstanceData>& e) : IfcSystem(e) { }
// Ifc2x3::IfcElectricalCircuit::IfcElectricalCircuit(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcSystem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcElectricalElement


// const IfcParse::entity& Ifc2x3::IfcElectricalElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[275]); }
const IfcParse::entity& Ifc2x3::IfcElectricalElement::Class() { return *((IfcParse::entity*)IFC2X3_types[275]); }
// Ifc2x3::IfcElectricalElement::IfcElectricalElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcElectricalElement::IfcElectricalElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcElement
std::optional< std::string > Ifc2x3::IfcElement::Tag() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcElement::setTag(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }

std::vector<::Ifc2x3::IfcRelConnectsStructuralElement> Ifc2x3::IfcElement::HasStructuralMember() const { return cast_vector<IfcRelConnectsStructuralElement>(file()->getInverse(data()->id(), IFC2X3_types[694], 4)); }
std::vector<::Ifc2x3::IfcRelFillsElement> Ifc2x3::IfcElement::FillsVoids() const { return cast_vector<IfcRelFillsElement>(file()->getInverse(data()->id(), IFC2X3_types[705], 5)); }
std::vector<::Ifc2x3::IfcRelConnectsElements> Ifc2x3::IfcElement::ConnectedTo() const { return cast_vector<IfcRelConnectsElements>(file()->getInverse(data()->id(), IFC2X3_types[689], 5)); }
std::vector<::Ifc2x3::IfcRelCoversBldgElements> Ifc2x3::IfcElement::HasCoverings() const { return cast_vector<IfcRelCoversBldgElements>(file()->getInverse(data()->id(), IFC2X3_types[699], 4)); }
std::vector<::Ifc2x3::IfcRelProjectsElement> Ifc2x3::IfcElement::HasProjections() const { return cast_vector<IfcRelProjectsElement>(file()->getInverse(data()->id(), IFC2X3_types[711], 4)); }
std::vector<::Ifc2x3::IfcRelReferencedInSpatialStructure> Ifc2x3::IfcElement::ReferencedInStructures() const { return cast_vector<IfcRelReferencedInSpatialStructure>(file()->getInverse(data()->id(), IFC2X3_types[712], 4)); }
std::vector<::Ifc2x3::IfcRelConnectsPortToElement> Ifc2x3::IfcElement::HasPorts() const { return cast_vector<IfcRelConnectsPortToElement>(file()->getInverse(data()->id(), IFC2X3_types[692], 5)); }
std::vector<::Ifc2x3::IfcRelVoidsElement> Ifc2x3::IfcElement::HasOpenings() const { return cast_vector<IfcRelVoidsElement>(file()->getInverse(data()->id(), IFC2X3_types[717], 4)); }
std::vector<::Ifc2x3::IfcRelConnectsWithRealizingElements> Ifc2x3::IfcElement::IsConnectionRealization() const { return cast_vector<IfcRelConnectsWithRealizingElements>(file()->getInverse(data()->id(), IFC2X3_types[697], 7)); }
std::vector<::Ifc2x3::IfcRelSpaceBoundary> Ifc2x3::IfcElement::ProvidesBoundaries() const { return cast_vector<IfcRelSpaceBoundary>(file()->getInverse(data()->id(), IFC2X3_types[716], 5)); }
std::vector<::Ifc2x3::IfcRelConnectsElements> Ifc2x3::IfcElement::ConnectedFrom() const { return cast_vector<IfcRelConnectsElements>(file()->getInverse(data()->id(), IFC2X3_types[689], 6)); }
std::vector<::Ifc2x3::IfcRelContainedInSpatialStructure> Ifc2x3::IfcElement::ContainedInStructure() const { return cast_vector<IfcRelContainedInSpatialStructure>(file()->getInverse(data()->id(), IFC2X3_types[698], 4)); }

// const IfcParse::entity& Ifc2x3::IfcElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[297]); }
const IfcParse::entity& Ifc2x3::IfcElement::Class() { return *((IfcParse::entity*)IFC2X3_types[297]); }
// Ifc2x3::IfcElement::IfcElement(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcElement::IfcElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcElementAssembly
std::optional< ::Ifc2x3::IfcAssemblyPlaceEnum::Value > Ifc2x3::IfcElementAssembly::AssemblyPlace() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcAssemblyPlaceEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcElementAssembly::setAssemblyPlace(const std::optional< ::Ifc2x3::IfcAssemblyPlaceEnum::Value >& v) { if (v) {set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcAssemblyPlaceEnum::Class(), (size_t) *v));} else {unset_attribute_value(8);} }
::Ifc2x3::IfcElementAssemblyTypeEnum::Value Ifc2x3::IfcElementAssembly::PredefinedType() const {  return ::Ifc2x3::IfcElementAssemblyTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcElementAssembly::setPredefinedType(const ::Ifc2x3::IfcElementAssemblyTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcElementAssemblyTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcElementAssembly::declaration() const { return *((IfcParse::entity*)IFC2X3_types[299]); }
const IfcParse::entity& Ifc2x3::IfcElementAssembly::Class() { return *((IfcParse::entity*)IFC2X3_types[299]); }
// Ifc2x3::IfcElementAssembly::IfcElementAssembly(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcElementAssembly::IfcElementAssembly(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< ::Ifc2x3::IfcAssemblyPlaceEnum::Value > v9_AssemblyPlace, ::Ifc2x3::IfcElementAssemblyTypeEnum::Value v10_PredefinedType) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_AssemblyPlace) {set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcAssemblyPlaceEnum::Class(),(size_t)*v9_AssemblyPlace))); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcElementAssemblyTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcElementComponent


// const IfcParse::entity& Ifc2x3::IfcElementComponent::declaration() const { return *((IfcParse::entity*)IFC2X3_types[301]); }
const IfcParse::entity& Ifc2x3::IfcElementComponent::Class() { return *((IfcParse::entity*)IFC2X3_types[301]); }
// Ifc2x3::IfcElementComponent::IfcElementComponent(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcElementComponent::IfcElementComponent(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcElementComponentType


// const IfcParse::entity& Ifc2x3::IfcElementComponentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[302]); }
const IfcParse::entity& Ifc2x3::IfcElementComponentType::Class() { return *((IfcParse::entity*)IFC2X3_types[302]); }
// Ifc2x3::IfcElementComponentType::IfcElementComponentType(const std::weak_ptr<InstanceData>& e) : IfcElementType(e) { }
// Ifc2x3::IfcElementComponentType::IfcElementComponentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcElementQuantity
std::optional< std::string > Ifc2x3::IfcElementQuantity::MethodOfMeasurement() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcElementQuantity::setMethodOfMeasurement(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::vector< ::Ifc2x3::IfcPhysicalQuantity > Ifc2x3::IfcElementQuantity::Quantities() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcPhysicalQuantity>(es); }
void Ifc2x3::IfcElementQuantity::setQuantities(const std::vector< ::Ifc2x3::IfcPhysicalQuantity >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcElementQuantity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[304]); }
const IfcParse::entity& Ifc2x3::IfcElementQuantity::Class() { return *((IfcParse::entity*)IFC2X3_types[304]); }
// Ifc2x3::IfcElementQuantity::IfcElementQuantity(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcElementQuantity::IfcElementQuantity(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_MethodOfMeasurement, std::vector< ::Ifc2x3::IfcPhysicalQuantity > v6_Quantities) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_MethodOfMeasurement) {set_attribute_value(4, (*v5_MethodOfMeasurement)); }set_attribute_value(5, (v6_Quantities)->generalize());; populate_derived(); }

// Function implementations for IfcElementType
std::optional< std::string > Ifc2x3::IfcElementType::ElementType() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcElementType::setElementType(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[305]); }
const IfcParse::entity& Ifc2x3::IfcElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[305]); }
// Ifc2x3::IfcElementType::IfcElementType(const std::weak_ptr<InstanceData>& e) : IfcTypeProduct(e) { }
// Ifc2x3::IfcElementType::IfcElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcTypeProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcElementarySurface
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcElementarySurface::Position() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcElementarySurface::setPosition(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcElementarySurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[298]); }
const IfcParse::entity& Ifc2x3::IfcElementarySurface::Class() { return *((IfcParse::entity*)IFC2X3_types[298]); }
// Ifc2x3::IfcElementarySurface::IfcElementarySurface(const std::weak_ptr<InstanceData>& e) : IfcSurface(e) { }
// Ifc2x3::IfcElementarySurface::IfcElementarySurface(::Ifc2x3::IfcAxis2Placement3D v1_Position) : IfcSurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Position));; populate_derived(); }

// Function implementations for IfcEllipse
double Ifc2x3::IfcEllipse::SemiAxis1() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcEllipse::setSemiAxis1(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcEllipse::SemiAxis2() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcEllipse::setSemiAxis2(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcEllipse::declaration() const { return *((IfcParse::entity*)IFC2X3_types[306]); }
const IfcParse::entity& Ifc2x3::IfcEllipse::Class() { return *((IfcParse::entity*)IFC2X3_types[306]); }
// Ifc2x3::IfcEllipse::IfcEllipse(const std::weak_ptr<InstanceData>& e) : IfcConic(e) { }
// Ifc2x3::IfcEllipse::IfcEllipse(::Ifc2x3::IfcAxis2Placement v1_Position, double v2_SemiAxis1, double v3_SemiAxis2) : IfcConic(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Position));set_attribute_value(1, (v2_SemiAxis1));set_attribute_value(2, (v3_SemiAxis2));; populate_derived(); }

// Function implementations for IfcEllipseProfileDef
double Ifc2x3::IfcEllipseProfileDef::SemiAxis1() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcEllipseProfileDef::setSemiAxis1(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcEllipseProfileDef::SemiAxis2() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcEllipseProfileDef::setSemiAxis2(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcEllipseProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[307]); }
const IfcParse::entity& Ifc2x3::IfcEllipseProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[307]); }
// Ifc2x3::IfcEllipseProfileDef::IfcEllipseProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcEllipseProfileDef::IfcEllipseProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_SemiAxis1, double v5_SemiAxis2) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_SemiAxis1));set_attribute_value(4, (v5_SemiAxis2));; populate_derived(); }

// Function implementations for IfcEnergyConversionDevice


// const IfcParse::entity& Ifc2x3::IfcEnergyConversionDevice::declaration() const { return *((IfcParse::entity*)IFC2X3_types[308]); }
const IfcParse::entity& Ifc2x3::IfcEnergyConversionDevice::Class() { return *((IfcParse::entity*)IFC2X3_types[308]); }
// Ifc2x3::IfcEnergyConversionDevice::IfcEnergyConversionDevice(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcEnergyConversionDevice::IfcEnergyConversionDevice(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcEnergyConversionDeviceType


// const IfcParse::entity& Ifc2x3::IfcEnergyConversionDeviceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[309]); }
const IfcParse::entity& Ifc2x3::IfcEnergyConversionDeviceType::Class() { return *((IfcParse::entity*)IFC2X3_types[309]); }
// Ifc2x3::IfcEnergyConversionDeviceType::IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcEnergyConversionDeviceType::IfcEnergyConversionDeviceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcEnergyProperties
std::optional< ::Ifc2x3::IfcEnergySequenceEnum::Value > Ifc2x3::IfcEnergyProperties::EnergySequence() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcEnergySequenceEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcEnergyProperties::setEnergySequence(const std::optional< ::Ifc2x3::IfcEnergySequenceEnum::Value >& v) { if (v) {set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcEnergySequenceEnum::Class(), (size_t) *v));} else {unset_attribute_value(4);} }
std::optional< std::string > Ifc2x3::IfcEnergyProperties::UserDefinedEnergySequence() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcEnergyProperties::setUserDefinedEnergySequence(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }


// const IfcParse::entity& Ifc2x3::IfcEnergyProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[311]); }
const IfcParse::entity& Ifc2x3::IfcEnergyProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[311]); }
// Ifc2x3::IfcEnergyProperties::IfcEnergyProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcEnergyProperties::IfcEnergyProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< ::Ifc2x3::IfcEnergySequenceEnum::Value > v5_EnergySequence, std::optional< std::string > v6_UserDefinedEnergySequence) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_EnergySequence) {set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcEnergySequenceEnum::Class(),(size_t)*v5_EnergySequence))); } if (v6_UserDefinedEnergySequence) {set_attribute_value(5, (*v6_UserDefinedEnergySequence)); }; populate_derived(); }

// Function implementations for IfcEnvironmentalImpactValue
std::string Ifc2x3::IfcEnvironmentalImpactValue::ImpactType() const {  std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcEnvironmentalImpactValue::setImpactType(const std::string& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Value Ifc2x3::IfcEnvironmentalImpactValue::Category() const {  return ::Ifc2x3::IfcEnvironmentalImpactCategoryEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcEnvironmentalImpactValue::setCategory(const ::Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }
std::optional< std::string > Ifc2x3::IfcEnvironmentalImpactValue::UserDefinedCategory() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcEnvironmentalImpactValue::setUserDefinedCategory(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcEnvironmentalImpactValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[314]); }
const IfcParse::entity& Ifc2x3::IfcEnvironmentalImpactValue::Class() { return *((IfcParse::entity*)IFC2X3_types[314]); }
// Ifc2x3::IfcEnvironmentalImpactValue::IfcEnvironmentalImpactValue(const std::weak_ptr<InstanceData>& e) : IfcAppliedValue(e) { }
// Ifc2x3::IfcEnvironmentalImpactValue::IfcEnvironmentalImpactValue(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcAppliedValueSelect v3_AppliedValue, ::Ifc2x3::IfcMeasureWithUnit v4_UnitBasis, ::Ifc2x3::IfcDateTimeSelect v5_ApplicableDate, ::Ifc2x3::IfcDateTimeSelect v6_FixedUntilDate, std::string v7_ImpactType, ::Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Value v8_Category, std::optional< std::string > v9_UserDefinedCategory) : IfcAppliedValue(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_AppliedValue) {set_attribute_value(2, (*v3_AppliedValue)); } if (v4_UnitBasis) {set_attribute_value(3, (*v4_UnitBasis)); } if (v5_ApplicableDate) {set_attribute_value(4, (*v5_ApplicableDate)); } if (v6_FixedUntilDate) {set_attribute_value(5, (*v6_FixedUntilDate)); }set_attribute_value(6, (v7_ImpactType));set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcEnvironmentalImpactCategoryEnum::Class(),(size_t)v8_Category))); if (v9_UserDefinedCategory) {set_attribute_value(8, (*v9_UserDefinedCategory)); }; populate_derived(); }

// Function implementations for IfcEquipmentElement


// const IfcParse::entity& Ifc2x3::IfcEquipmentElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[315]); }
const IfcParse::entity& Ifc2x3::IfcEquipmentElement::Class() { return *((IfcParse::entity*)IFC2X3_types[315]); }
// Ifc2x3::IfcEquipmentElement::IfcEquipmentElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcEquipmentElement::IfcEquipmentElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcEquipmentStandard


// const IfcParse::entity& Ifc2x3::IfcEquipmentStandard::declaration() const { return *((IfcParse::entity*)IFC2X3_types[316]); }
const IfcParse::entity& Ifc2x3::IfcEquipmentStandard::Class() { return *((IfcParse::entity*)IFC2X3_types[316]); }
// Ifc2x3::IfcEquipmentStandard::IfcEquipmentStandard(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcEquipmentStandard::IfcEquipmentStandard(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcEvaporativeCoolerType
::Ifc2x3::IfcEvaporativeCoolerTypeEnum::Value Ifc2x3::IfcEvaporativeCoolerType::PredefinedType() const {  return ::Ifc2x3::IfcEvaporativeCoolerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcEvaporativeCoolerType::setPredefinedType(const ::Ifc2x3::IfcEvaporativeCoolerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcEvaporativeCoolerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcEvaporativeCoolerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[317]); }
const IfcParse::entity& Ifc2x3::IfcEvaporativeCoolerType::Class() { return *((IfcParse::entity*)IFC2X3_types[317]); }
// Ifc2x3::IfcEvaporativeCoolerType::IfcEvaporativeCoolerType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcEvaporativeCoolerType::IfcEvaporativeCoolerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcEvaporativeCoolerTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcEvaporativeCoolerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcEvaporatorType
::Ifc2x3::IfcEvaporatorTypeEnum::Value Ifc2x3::IfcEvaporatorType::PredefinedType() const {  return ::Ifc2x3::IfcEvaporatorTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcEvaporatorType::setPredefinedType(const ::Ifc2x3::IfcEvaporatorTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcEvaporatorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcEvaporatorType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[319]); }
const IfcParse::entity& Ifc2x3::IfcEvaporatorType::Class() { return *((IfcParse::entity*)IFC2X3_types[319]); }
// Ifc2x3::IfcEvaporatorType::IfcEvaporatorType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcEvaporatorType::IfcEvaporatorType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcEvaporatorTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcEvaporatorTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcExtendedMaterialProperties
std::vector< ::Ifc2x3::IfcProperty > Ifc2x3::IfcExtendedMaterialProperties::ExtendedProperties() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcProperty>(es); }
void Ifc2x3::IfcExtendedMaterialProperties::setExtendedProperties(const std::vector< ::Ifc2x3::IfcProperty >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcExtendedMaterialProperties::Description() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcExtendedMaterialProperties::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::string Ifc2x3::IfcExtendedMaterialProperties::Name() const {  std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcExtendedMaterialProperties::setName(const std::string& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcExtendedMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[321]); }
const IfcParse::entity& Ifc2x3::IfcExtendedMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[321]); }
// Ifc2x3::IfcExtendedMaterialProperties::IfcExtendedMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcExtendedMaterialProperties::IfcExtendedMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::vector< ::Ifc2x3::IfcProperty > v2_ExtendedProperties, std::optional< std::string > v3_Description, std::string v4_Name) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Material));set_attribute_value(1, (v2_ExtendedProperties)->generalize()); if (v3_Description) {set_attribute_value(2, (*v3_Description)); }set_attribute_value(3, (v4_Name));; populate_derived(); }

// Function implementations for IfcExternalReference
std::optional< std::string > Ifc2x3::IfcExternalReference::Location() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcExternalReference::setLocation(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcExternalReference::ItemReference() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcExternalReference::setItemReference(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcExternalReference::Name() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcExternalReference::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }


// const IfcParse::entity& Ifc2x3::IfcExternalReference::declaration() const { return *((IfcParse::entity*)IFC2X3_types[326]); }
const IfcParse::entity& Ifc2x3::IfcExternalReference::Class() { return *((IfcParse::entity*)IFC2X3_types[326]); }
// Ifc2x3::IfcExternalReference::IfcExternalReference(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcExternalReference::IfcExternalReference(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcExternallyDefinedHatchStyle


// const IfcParse::entity& Ifc2x3::IfcExternallyDefinedHatchStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[322]); }
const IfcParse::entity& Ifc2x3::IfcExternallyDefinedHatchStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[322]); }
// Ifc2x3::IfcExternallyDefinedHatchStyle::IfcExternallyDefinedHatchStyle(const std::weak_ptr<InstanceData>& e) : IfcExternalReference(e) { }
// Ifc2x3::IfcExternallyDefinedHatchStyle::IfcExternallyDefinedHatchStyle(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name) : IfcExternalReference(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcExternallyDefinedSurfaceStyle


// const IfcParse::entity& Ifc2x3::IfcExternallyDefinedSurfaceStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[323]); }
const IfcParse::entity& Ifc2x3::IfcExternallyDefinedSurfaceStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[323]); }
// Ifc2x3::IfcExternallyDefinedSurfaceStyle::IfcExternallyDefinedSurfaceStyle(const std::weak_ptr<InstanceData>& e) : IfcExternalReference(e) { }
// Ifc2x3::IfcExternallyDefinedSurfaceStyle::IfcExternallyDefinedSurfaceStyle(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name) : IfcExternalReference(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcExternallyDefinedSymbol


// const IfcParse::entity& Ifc2x3::IfcExternallyDefinedSymbol::declaration() const { return *((IfcParse::entity*)IFC2X3_types[324]); }
const IfcParse::entity& Ifc2x3::IfcExternallyDefinedSymbol::Class() { return *((IfcParse::entity*)IFC2X3_types[324]); }
// Ifc2x3::IfcExternallyDefinedSymbol::IfcExternallyDefinedSymbol(const std::weak_ptr<InstanceData>& e) : IfcExternalReference(e) { }
// Ifc2x3::IfcExternallyDefinedSymbol::IfcExternallyDefinedSymbol(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name) : IfcExternalReference(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcExternallyDefinedTextFont


// const IfcParse::entity& Ifc2x3::IfcExternallyDefinedTextFont::declaration() const { return *((IfcParse::entity*)IFC2X3_types[325]); }
const IfcParse::entity& Ifc2x3::IfcExternallyDefinedTextFont::Class() { return *((IfcParse::entity*)IFC2X3_types[325]); }
// Ifc2x3::IfcExternallyDefinedTextFont::IfcExternallyDefinedTextFont(const std::weak_ptr<InstanceData>& e) : IfcExternalReference(e) { }
// Ifc2x3::IfcExternallyDefinedTextFont::IfcExternallyDefinedTextFont(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name) : IfcExternalReference(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcExtrudedAreaSolid
::Ifc2x3::IfcDirection Ifc2x3::IfcExtrudedAreaSolid::ExtrudedDirection() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcExtrudedAreaSolid::setExtrudedDirection(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcExtrudedAreaSolid::Depth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcExtrudedAreaSolid::setDepth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcExtrudedAreaSolid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[327]); }
const IfcParse::entity& Ifc2x3::IfcExtrudedAreaSolid::Class() { return *((IfcParse::entity*)IFC2X3_types[327]); }
// Ifc2x3::IfcExtrudedAreaSolid::IfcExtrudedAreaSolid(const std::weak_ptr<InstanceData>& e) : IfcSweptAreaSolid(e) { }
// Ifc2x3::IfcExtrudedAreaSolid::IfcExtrudedAreaSolid(::Ifc2x3::IfcProfileDef v1_SweptArea, ::Ifc2x3::IfcAxis2Placement3D v2_Position, ::Ifc2x3::IfcDirection v3_ExtrudedDirection, double v4_Depth) : IfcSweptAreaSolid(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_SweptArea));set_attribute_value(1, (v2_Position));set_attribute_value(2, (v3_ExtrudedDirection));set_attribute_value(3, (v4_Depth));; populate_derived(); }

// Function implementations for IfcFace
std::vector< ::Ifc2x3::IfcFaceBound > Ifc2x3::IfcFace::Bounds() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcFaceBound>(es); }
void Ifc2x3::IfcFace::setBounds(const std::vector< ::Ifc2x3::IfcFaceBound >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcFace::declaration() const { return *((IfcParse::entity*)IFC2X3_types[328]); }
const IfcParse::entity& Ifc2x3::IfcFace::Class() { return *((IfcParse::entity*)IFC2X3_types[328]); }
// Ifc2x3::IfcFace::IfcFace(const std::weak_ptr<InstanceData>& e) : IfcTopologicalRepresentationItem(e) { }
// Ifc2x3::IfcFace::IfcFace(std::vector< ::Ifc2x3::IfcFaceBound > v1_Bounds) : IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Bounds)->generalize());; populate_derived(); }

// Function implementations for IfcFaceBasedSurfaceModel
std::vector< ::Ifc2x3::IfcConnectedFaceSet > Ifc2x3::IfcFaceBasedSurfaceModel::FbsmFaces() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcConnectedFaceSet>(es); }
void Ifc2x3::IfcFaceBasedSurfaceModel::setFbsmFaces(const std::vector< ::Ifc2x3::IfcConnectedFaceSet >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcFaceBasedSurfaceModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[329]); }
const IfcParse::entity& Ifc2x3::IfcFaceBasedSurfaceModel::Class() { return *((IfcParse::entity*)IFC2X3_types[329]); }
// Ifc2x3::IfcFaceBasedSurfaceModel::IfcFaceBasedSurfaceModel(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcFaceBasedSurfaceModel::IfcFaceBasedSurfaceModel(std::vector< ::Ifc2x3::IfcConnectedFaceSet > v1_FbsmFaces) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_FbsmFaces)->generalize());; populate_derived(); }

// Function implementations for IfcFaceBound
::Ifc2x3::IfcLoop Ifc2x3::IfcFaceBound::Bound() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcLoop>(); }
void Ifc2x3::IfcFaceBound::setBound(const ::Ifc2x3::IfcLoop& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
bool Ifc2x3::IfcFaceBound::Orientation() const {  bool v = get_attribute_value(1); return v; }
void Ifc2x3::IfcFaceBound::setOrientation(const bool& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcFaceBound::declaration() const { return *((IfcParse::entity*)IFC2X3_types[330]); }
const IfcParse::entity& Ifc2x3::IfcFaceBound::Class() { return *((IfcParse::entity*)IFC2X3_types[330]); }
// Ifc2x3::IfcFaceBound::IfcFaceBound(const std::weak_ptr<InstanceData>& e) : IfcTopologicalRepresentationItem(e) { }
// Ifc2x3::IfcFaceBound::IfcFaceBound(::Ifc2x3::IfcLoop v1_Bound, bool v2_Orientation) : IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Bound));set_attribute_value(1, (v2_Orientation));; populate_derived(); }

// Function implementations for IfcFaceOuterBound


// const IfcParse::entity& Ifc2x3::IfcFaceOuterBound::declaration() const { return *((IfcParse::entity*)IFC2X3_types[331]); }
const IfcParse::entity& Ifc2x3::IfcFaceOuterBound::Class() { return *((IfcParse::entity*)IFC2X3_types[331]); }
// Ifc2x3::IfcFaceOuterBound::IfcFaceOuterBound(const std::weak_ptr<InstanceData>& e) : IfcFaceBound(e) { }
// Ifc2x3::IfcFaceOuterBound::IfcFaceOuterBound(::Ifc2x3::IfcLoop v1_Bound, bool v2_Orientation) : IfcFaceBound(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Bound));set_attribute_value(1, (v2_Orientation));; populate_derived(); }

// Function implementations for IfcFaceSurface
::Ifc2x3::IfcSurface Ifc2x3::IfcFaceSurface::FaceSurface() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcSurface>(); }
void Ifc2x3::IfcFaceSurface::setFaceSurface(const ::Ifc2x3::IfcSurface& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
bool Ifc2x3::IfcFaceSurface::SameSense() const {  bool v = get_attribute_value(2); return v; }
void Ifc2x3::IfcFaceSurface::setSameSense(const bool& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcFaceSurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[332]); }
const IfcParse::entity& Ifc2x3::IfcFaceSurface::Class() { return *((IfcParse::entity*)IFC2X3_types[332]); }
// Ifc2x3::IfcFaceSurface::IfcFaceSurface(const std::weak_ptr<InstanceData>& e) : IfcFace(e) { }
// Ifc2x3::IfcFaceSurface::IfcFaceSurface(std::vector< ::Ifc2x3::IfcFaceBound > v1_Bounds, ::Ifc2x3::IfcSurface v2_FaceSurface, bool v3_SameSense) : IfcFace(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Bounds)->generalize());set_attribute_value(1, (v2_FaceSurface));set_attribute_value(2, (v3_SameSense));; populate_derived(); }

// Function implementations for IfcFacetedBrep


// const IfcParse::entity& Ifc2x3::IfcFacetedBrep::declaration() const { return *((IfcParse::entity*)IFC2X3_types[333]); }
const IfcParse::entity& Ifc2x3::IfcFacetedBrep::Class() { return *((IfcParse::entity*)IFC2X3_types[333]); }
// Ifc2x3::IfcFacetedBrep::IfcFacetedBrep(const std::weak_ptr<InstanceData>& e) : IfcManifoldSolidBrep(e) { }
// Ifc2x3::IfcFacetedBrep::IfcFacetedBrep(::Ifc2x3::IfcClosedShell v1_Outer) : IfcManifoldSolidBrep(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Outer));; populate_derived(); }

// Function implementations for IfcFacetedBrepWithVoids
std::vector< ::Ifc2x3::IfcClosedShell > Ifc2x3::IfcFacetedBrepWithVoids::Voids() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcClosedShell>(es); }
void Ifc2x3::IfcFacetedBrepWithVoids::setVoids(const std::vector< ::Ifc2x3::IfcClosedShell >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcFacetedBrepWithVoids::declaration() const { return *((IfcParse::entity*)IFC2X3_types[334]); }
const IfcParse::entity& Ifc2x3::IfcFacetedBrepWithVoids::Class() { return *((IfcParse::entity*)IFC2X3_types[334]); }
// Ifc2x3::IfcFacetedBrepWithVoids::IfcFacetedBrepWithVoids(const std::weak_ptr<InstanceData>& e) : IfcManifoldSolidBrep(e) { }
// Ifc2x3::IfcFacetedBrepWithVoids::IfcFacetedBrepWithVoids(::Ifc2x3::IfcClosedShell v1_Outer, std::vector< ::Ifc2x3::IfcClosedShell > v2_Voids) : IfcManifoldSolidBrep(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Outer));set_attribute_value(1, (v2_Voids)->generalize());; populate_derived(); }

// Function implementations for IfcFailureConnectionCondition
std::optional< double > Ifc2x3::IfcFailureConnectionCondition::TensionFailureX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcFailureConnectionCondition::setTensionFailureX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcFailureConnectionCondition::TensionFailureY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcFailureConnectionCondition::setTensionFailureY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcFailureConnectionCondition::TensionFailureZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcFailureConnectionCondition::setTensionFailureZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcFailureConnectionCondition::CompressionFailureX() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcFailureConnectionCondition::setCompressionFailureX(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcFailureConnectionCondition::CompressionFailureY() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcFailureConnectionCondition::setCompressionFailureY(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcFailureConnectionCondition::CompressionFailureZ() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcFailureConnectionCondition::setCompressionFailureZ(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcFailureConnectionCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[335]); }
const IfcParse::entity& Ifc2x3::IfcFailureConnectionCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[335]); }
// Ifc2x3::IfcFailureConnectionCondition::IfcFailureConnectionCondition(const std::weak_ptr<InstanceData>& e) : IfcStructuralConnectionCondition(e) { }
// Ifc2x3::IfcFailureConnectionCondition::IfcFailureConnectionCondition(std::optional< std::string > v1_Name, std::optional< double > v2_TensionFailureX, std::optional< double > v3_TensionFailureY, std::optional< double > v4_TensionFailureZ, std::optional< double > v5_CompressionFailureX, std::optional< double > v6_CompressionFailureY, std::optional< double > v7_CompressionFailureZ) : IfcStructuralConnectionCondition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_TensionFailureX) {set_attribute_value(1, (*v2_TensionFailureX)); } if (v3_TensionFailureY) {set_attribute_value(2, (*v3_TensionFailureY)); } if (v4_TensionFailureZ) {set_attribute_value(3, (*v4_TensionFailureZ)); } if (v5_CompressionFailureX) {set_attribute_value(4, (*v5_CompressionFailureX)); } if (v6_CompressionFailureY) {set_attribute_value(5, (*v6_CompressionFailureY)); } if (v7_CompressionFailureZ) {set_attribute_value(6, (*v7_CompressionFailureZ)); }; populate_derived(); }

// Function implementations for IfcFanType
::Ifc2x3::IfcFanTypeEnum::Value Ifc2x3::IfcFanType::PredefinedType() const {  return ::Ifc2x3::IfcFanTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcFanType::setPredefinedType(const ::Ifc2x3::IfcFanTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcFanTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcFanType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[336]); }
const IfcParse::entity& Ifc2x3::IfcFanType::Class() { return *((IfcParse::entity*)IFC2X3_types[336]); }
// Ifc2x3::IfcFanType::IfcFanType(const std::weak_ptr<InstanceData>& e) : IfcFlowMovingDeviceType(e) { }
// Ifc2x3::IfcFanType::IfcFanType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcFanTypeEnum::Value v10_PredefinedType) : IfcFlowMovingDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcFanTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcFastener


// const IfcParse::entity& Ifc2x3::IfcFastener::declaration() const { return *((IfcParse::entity*)IFC2X3_types[338]); }
const IfcParse::entity& Ifc2x3::IfcFastener::Class() { return *((IfcParse::entity*)IFC2X3_types[338]); }
// Ifc2x3::IfcFastener::IfcFastener(const std::weak_ptr<InstanceData>& e) : IfcElementComponent(e) { }
// Ifc2x3::IfcFastener::IfcFastener(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElementComponent(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFastenerType


// const IfcParse::entity& Ifc2x3::IfcFastenerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[339]); }
const IfcParse::entity& Ifc2x3::IfcFastenerType::Class() { return *((IfcParse::entity*)IFC2X3_types[339]); }
// Ifc2x3::IfcFastenerType::IfcFastenerType(const std::weak_ptr<InstanceData>& e) : IfcElementComponentType(e) { }
// Ifc2x3::IfcFastenerType::IfcFastenerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcElementComponentType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFeatureElement


// const IfcParse::entity& Ifc2x3::IfcFeatureElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[340]); }
const IfcParse::entity& Ifc2x3::IfcFeatureElement::Class() { return *((IfcParse::entity*)IFC2X3_types[340]); }
// Ifc2x3::IfcFeatureElement::IfcFeatureElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcFeatureElement::IfcFeatureElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFeatureElementAddition

std::vector<::Ifc2x3::IfcRelProjectsElement> Ifc2x3::IfcFeatureElementAddition::ProjectsElements() const { return cast_vector<IfcRelProjectsElement>(file()->getInverse(data()->id(), IFC2X3_types[711], 5)); }

// const IfcParse::entity& Ifc2x3::IfcFeatureElementAddition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[341]); }
const IfcParse::entity& Ifc2x3::IfcFeatureElementAddition::Class() { return *((IfcParse::entity*)IFC2X3_types[341]); }
// Ifc2x3::IfcFeatureElementAddition::IfcFeatureElementAddition(const std::weak_ptr<InstanceData>& e) : IfcFeatureElement(e) { }
// Ifc2x3::IfcFeatureElementAddition::IfcFeatureElementAddition(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcFeatureElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFeatureElementSubtraction

std::vector<::Ifc2x3::IfcRelVoidsElement> Ifc2x3::IfcFeatureElementSubtraction::VoidsElements() const { return cast_vector<IfcRelVoidsElement>(file()->getInverse(data()->id(), IFC2X3_types[717], 5)); }

// const IfcParse::entity& Ifc2x3::IfcFeatureElementSubtraction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[342]); }
const IfcParse::entity& Ifc2x3::IfcFeatureElementSubtraction::Class() { return *((IfcParse::entity*)IFC2X3_types[342]); }
// Ifc2x3::IfcFeatureElementSubtraction::IfcFeatureElementSubtraction(const std::weak_ptr<InstanceData>& e) : IfcFeatureElement(e) { }
// Ifc2x3::IfcFeatureElementSubtraction::IfcFeatureElementSubtraction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcFeatureElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFillAreaStyle
std::vector< ::Ifc2x3::IfcFillStyleSelect > Ifc2x3::IfcFillAreaStyle::FillStyles() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcFillStyleSelect>(es); }
void Ifc2x3::IfcFillAreaStyle::setFillStyles(const std::vector< ::Ifc2x3::IfcFillStyleSelect >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcFillAreaStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[343]); }
const IfcParse::entity& Ifc2x3::IfcFillAreaStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[343]); }
// Ifc2x3::IfcFillAreaStyle::IfcFillAreaStyle(const std::weak_ptr<InstanceData>& e) : IfcPresentationStyle(e) { }
// Ifc2x3::IfcFillAreaStyle::IfcFillAreaStyle(std::optional< std::string > v1_Name, std::vector< ::Ifc2x3::IfcFillStyleSelect > v2_FillStyles) : IfcPresentationStyle(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_FillStyles)->generalize());; populate_derived(); }

// Function implementations for IfcFillAreaStyleHatching
::Ifc2x3::IfcCurveStyle Ifc2x3::IfcFillAreaStyleHatching::HatchLineAppearance() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurveStyle>(); }
void Ifc2x3::IfcFillAreaStyleHatching::setHatchLineAppearance(const ::Ifc2x3::IfcCurveStyle& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcHatchLineDistanceSelect Ifc2x3::IfcFillAreaStyleHatching::StartOfNextHatchLine() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcHatchLineDistanceSelect>(); }
void Ifc2x3::IfcFillAreaStyleHatching::setStartOfNextHatchLine(const ::Ifc2x3::IfcHatchLineDistanceSelect& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcCartesianPoint Ifc2x3::IfcFillAreaStyleHatching::PointOfReferenceHatchLine() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcCartesianPoint{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcCartesianPoint>(); }
void Ifc2x3::IfcFillAreaStyleHatching::setPointOfReferenceHatchLine(const ::Ifc2x3::IfcCartesianPoint& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcCartesianPoint Ifc2x3::IfcFillAreaStyleHatching::PatternStart() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcCartesianPoint{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcCartesianPoint>(); }
void Ifc2x3::IfcFillAreaStyleHatching::setPatternStart(const ::Ifc2x3::IfcCartesianPoint& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcFillAreaStyleHatching::HatchLineAngle() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcFillAreaStyleHatching::setHatchLineAngle(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcFillAreaStyleHatching::declaration() const { return *((IfcParse::entity*)IFC2X3_types[344]); }
const IfcParse::entity& Ifc2x3::IfcFillAreaStyleHatching::Class() { return *((IfcParse::entity*)IFC2X3_types[344]); }
// Ifc2x3::IfcFillAreaStyleHatching::IfcFillAreaStyleHatching(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcFillAreaStyleHatching::IfcFillAreaStyleHatching(::Ifc2x3::IfcCurveStyle v1_HatchLineAppearance, ::Ifc2x3::IfcHatchLineDistanceSelect v2_StartOfNextHatchLine, ::Ifc2x3::IfcCartesianPoint v3_PointOfReferenceHatchLine, ::Ifc2x3::IfcCartesianPoint v4_PatternStart, double v5_HatchLineAngle) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_HatchLineAppearance));set_attribute_value(1, (v2_StartOfNextHatchLine)); if (v3_PointOfReferenceHatchLine) {set_attribute_value(2, (*v3_PointOfReferenceHatchLine)); } if (v4_PatternStart) {set_attribute_value(3, (*v4_PatternStart)); }set_attribute_value(4, (v5_HatchLineAngle));; populate_derived(); }

// Function implementations for IfcFillAreaStyleTileSymbolWithStyle
::Ifc2x3::IfcAnnotationSymbolOccurrence Ifc2x3::IfcFillAreaStyleTileSymbolWithStyle::Symbol() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcAnnotationSymbolOccurrence>(); }
void Ifc2x3::IfcFillAreaStyleTileSymbolWithStyle::setSymbol(const ::Ifc2x3::IfcAnnotationSymbolOccurrence& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcFillAreaStyleTileSymbolWithStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[347]); }
const IfcParse::entity& Ifc2x3::IfcFillAreaStyleTileSymbolWithStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[347]); }
// Ifc2x3::IfcFillAreaStyleTileSymbolWithStyle::IfcFillAreaStyleTileSymbolWithStyle(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcFillAreaStyleTileSymbolWithStyle::IfcFillAreaStyleTileSymbolWithStyle(::Ifc2x3::IfcAnnotationSymbolOccurrence v1_Symbol) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Symbol));; populate_derived(); }

// Function implementations for IfcFillAreaStyleTiles
::Ifc2x3::IfcOneDirectionRepeatFactor Ifc2x3::IfcFillAreaStyleTiles::TilingPattern() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcOneDirectionRepeatFactor>(); }
void Ifc2x3::IfcFillAreaStyleTiles::setTilingPattern(const ::Ifc2x3::IfcOneDirectionRepeatFactor& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcFillAreaStyleTileShapeSelect > Ifc2x3::IfcFillAreaStyleTiles::Tiles() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcFillAreaStyleTileShapeSelect>(es); }
void Ifc2x3::IfcFillAreaStyleTiles::setTiles(const std::vector< ::Ifc2x3::IfcFillAreaStyleTileShapeSelect >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcFillAreaStyleTiles::TilingScale() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcFillAreaStyleTiles::setTilingScale(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcFillAreaStyleTiles::declaration() const { return *((IfcParse::entity*)IFC2X3_types[345]); }
const IfcParse::entity& Ifc2x3::IfcFillAreaStyleTiles::Class() { return *((IfcParse::entity*)IFC2X3_types[345]); }
// Ifc2x3::IfcFillAreaStyleTiles::IfcFillAreaStyleTiles(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcFillAreaStyleTiles::IfcFillAreaStyleTiles(::Ifc2x3::IfcOneDirectionRepeatFactor v1_TilingPattern, std::vector< ::Ifc2x3::IfcFillAreaStyleTileShapeSelect > v2_Tiles, double v3_TilingScale) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_TilingPattern));set_attribute_value(1, (v2_Tiles)->generalize());set_attribute_value(2, (v3_TilingScale));; populate_derived(); }

// Function implementations for IfcFilterType
::Ifc2x3::IfcFilterTypeEnum::Value Ifc2x3::IfcFilterType::PredefinedType() const {  return ::Ifc2x3::IfcFilterTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcFilterType::setPredefinedType(const ::Ifc2x3::IfcFilterTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcFilterTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcFilterType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[349]); }
const IfcParse::entity& Ifc2x3::IfcFilterType::Class() { return *((IfcParse::entity*)IFC2X3_types[349]); }
// Ifc2x3::IfcFilterType::IfcFilterType(const std::weak_ptr<InstanceData>& e) : IfcFlowTreatmentDeviceType(e) { }
// Ifc2x3::IfcFilterType::IfcFilterType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcFilterTypeEnum::Value v10_PredefinedType) : IfcFlowTreatmentDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcFilterTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcFireSuppressionTerminalType
::Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Value Ifc2x3::IfcFireSuppressionTerminalType::PredefinedType() const {  return ::Ifc2x3::IfcFireSuppressionTerminalTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcFireSuppressionTerminalType::setPredefinedType(const ::Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcFireSuppressionTerminalType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[351]); }
const IfcParse::entity& Ifc2x3::IfcFireSuppressionTerminalType::Class() { return *((IfcParse::entity*)IFC2X3_types[351]); }
// Ifc2x3::IfcFireSuppressionTerminalType::IfcFireSuppressionTerminalType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcFireSuppressionTerminalType::IfcFireSuppressionTerminalType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcFireSuppressionTerminalTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcFlowController


// const IfcParse::entity& Ifc2x3::IfcFlowController::declaration() const { return *((IfcParse::entity*)IFC2X3_types[353]); }
const IfcParse::entity& Ifc2x3::IfcFlowController::Class() { return *((IfcParse::entity*)IFC2X3_types[353]); }
// Ifc2x3::IfcFlowController::IfcFlowController(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcFlowController::IfcFlowController(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFlowControllerType


// const IfcParse::entity& Ifc2x3::IfcFlowControllerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[354]); }
const IfcParse::entity& Ifc2x3::IfcFlowControllerType::Class() { return *((IfcParse::entity*)IFC2X3_types[354]); }
// Ifc2x3::IfcFlowControllerType::IfcFlowControllerType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcFlowControllerType::IfcFlowControllerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFlowFitting


// const IfcParse::entity& Ifc2x3::IfcFlowFitting::declaration() const { return *((IfcParse::entity*)IFC2X3_types[356]); }
const IfcParse::entity& Ifc2x3::IfcFlowFitting::Class() { return *((IfcParse::entity*)IFC2X3_types[356]); }
// Ifc2x3::IfcFlowFitting::IfcFlowFitting(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcFlowFitting::IfcFlowFitting(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFlowFittingType


// const IfcParse::entity& Ifc2x3::IfcFlowFittingType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[357]); }
const IfcParse::entity& Ifc2x3::IfcFlowFittingType::Class() { return *((IfcParse::entity*)IFC2X3_types[357]); }
// Ifc2x3::IfcFlowFittingType::IfcFlowFittingType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcFlowFittingType::IfcFlowFittingType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFlowInstrumentType
::Ifc2x3::IfcFlowInstrumentTypeEnum::Value Ifc2x3::IfcFlowInstrumentType::PredefinedType() const {  return ::Ifc2x3::IfcFlowInstrumentTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcFlowInstrumentType::setPredefinedType(const ::Ifc2x3::IfcFlowInstrumentTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcFlowInstrumentTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcFlowInstrumentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[358]); }
const IfcParse::entity& Ifc2x3::IfcFlowInstrumentType::Class() { return *((IfcParse::entity*)IFC2X3_types[358]); }
// Ifc2x3::IfcFlowInstrumentType::IfcFlowInstrumentType(const std::weak_ptr<InstanceData>& e) : IfcDistributionControlElementType(e) { }
// Ifc2x3::IfcFlowInstrumentType::IfcFlowInstrumentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcFlowInstrumentTypeEnum::Value v10_PredefinedType) : IfcDistributionControlElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcFlowInstrumentTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcFlowMeterType
::Ifc2x3::IfcFlowMeterTypeEnum::Value Ifc2x3::IfcFlowMeterType::PredefinedType() const {  return ::Ifc2x3::IfcFlowMeterTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcFlowMeterType::setPredefinedType(const ::Ifc2x3::IfcFlowMeterTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcFlowMeterTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcFlowMeterType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[360]); }
const IfcParse::entity& Ifc2x3::IfcFlowMeterType::Class() { return *((IfcParse::entity*)IFC2X3_types[360]); }
// Ifc2x3::IfcFlowMeterType::IfcFlowMeterType(const std::weak_ptr<InstanceData>& e) : IfcFlowControllerType(e) { }
// Ifc2x3::IfcFlowMeterType::IfcFlowMeterType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcFlowMeterTypeEnum::Value v10_PredefinedType) : IfcFlowControllerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcFlowMeterTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcFlowMovingDevice


// const IfcParse::entity& Ifc2x3::IfcFlowMovingDevice::declaration() const { return *((IfcParse::entity*)IFC2X3_types[362]); }
const IfcParse::entity& Ifc2x3::IfcFlowMovingDevice::Class() { return *((IfcParse::entity*)IFC2X3_types[362]); }
// Ifc2x3::IfcFlowMovingDevice::IfcFlowMovingDevice(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcFlowMovingDevice::IfcFlowMovingDevice(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFlowMovingDeviceType


// const IfcParse::entity& Ifc2x3::IfcFlowMovingDeviceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[363]); }
const IfcParse::entity& Ifc2x3::IfcFlowMovingDeviceType::Class() { return *((IfcParse::entity*)IFC2X3_types[363]); }
// Ifc2x3::IfcFlowMovingDeviceType::IfcFlowMovingDeviceType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcFlowMovingDeviceType::IfcFlowMovingDeviceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFlowSegment


// const IfcParse::entity& Ifc2x3::IfcFlowSegment::declaration() const { return *((IfcParse::entity*)IFC2X3_types[364]); }
const IfcParse::entity& Ifc2x3::IfcFlowSegment::Class() { return *((IfcParse::entity*)IFC2X3_types[364]); }
// Ifc2x3::IfcFlowSegment::IfcFlowSegment(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcFlowSegment::IfcFlowSegment(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFlowSegmentType


// const IfcParse::entity& Ifc2x3::IfcFlowSegmentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[365]); }
const IfcParse::entity& Ifc2x3::IfcFlowSegmentType::Class() { return *((IfcParse::entity*)IFC2X3_types[365]); }
// Ifc2x3::IfcFlowSegmentType::IfcFlowSegmentType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcFlowSegmentType::IfcFlowSegmentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFlowStorageDevice


// const IfcParse::entity& Ifc2x3::IfcFlowStorageDevice::declaration() const { return *((IfcParse::entity*)IFC2X3_types[366]); }
const IfcParse::entity& Ifc2x3::IfcFlowStorageDevice::Class() { return *((IfcParse::entity*)IFC2X3_types[366]); }
// Ifc2x3::IfcFlowStorageDevice::IfcFlowStorageDevice(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcFlowStorageDevice::IfcFlowStorageDevice(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFlowStorageDeviceType


// const IfcParse::entity& Ifc2x3::IfcFlowStorageDeviceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[367]); }
const IfcParse::entity& Ifc2x3::IfcFlowStorageDeviceType::Class() { return *((IfcParse::entity*)IFC2X3_types[367]); }
// Ifc2x3::IfcFlowStorageDeviceType::IfcFlowStorageDeviceType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcFlowStorageDeviceType::IfcFlowStorageDeviceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFlowTerminal


// const IfcParse::entity& Ifc2x3::IfcFlowTerminal::declaration() const { return *((IfcParse::entity*)IFC2X3_types[368]); }
const IfcParse::entity& Ifc2x3::IfcFlowTerminal::Class() { return *((IfcParse::entity*)IFC2X3_types[368]); }
// Ifc2x3::IfcFlowTerminal::IfcFlowTerminal(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcFlowTerminal::IfcFlowTerminal(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFlowTerminalType


// const IfcParse::entity& Ifc2x3::IfcFlowTerminalType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[369]); }
const IfcParse::entity& Ifc2x3::IfcFlowTerminalType::Class() { return *((IfcParse::entity*)IFC2X3_types[369]); }
// Ifc2x3::IfcFlowTerminalType::IfcFlowTerminalType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcFlowTerminalType::IfcFlowTerminalType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFlowTreatmentDevice


// const IfcParse::entity& Ifc2x3::IfcFlowTreatmentDevice::declaration() const { return *((IfcParse::entity*)IFC2X3_types[370]); }
const IfcParse::entity& Ifc2x3::IfcFlowTreatmentDevice::Class() { return *((IfcParse::entity*)IFC2X3_types[370]); }
// Ifc2x3::IfcFlowTreatmentDevice::IfcFlowTreatmentDevice(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElement(e) { }
// Ifc2x3::IfcFlowTreatmentDevice::IfcFlowTreatmentDevice(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcDistributionFlowElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFlowTreatmentDeviceType


// const IfcParse::entity& Ifc2x3::IfcFlowTreatmentDeviceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[371]); }
const IfcParse::entity& Ifc2x3::IfcFlowTreatmentDeviceType::Class() { return *((IfcParse::entity*)IFC2X3_types[371]); }
// Ifc2x3::IfcFlowTreatmentDeviceType::IfcFlowTreatmentDeviceType(const std::weak_ptr<InstanceData>& e) : IfcDistributionFlowElementType(e) { }
// Ifc2x3::IfcFlowTreatmentDeviceType::IfcFlowTreatmentDeviceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcDistributionFlowElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFluidFlowProperties
::Ifc2x3::IfcPropertySourceEnum::Value Ifc2x3::IfcFluidFlowProperties::PropertySource() const {  return ::Ifc2x3::IfcPropertySourceEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcFluidFlowProperties::setPropertySource(const ::Ifc2x3::IfcPropertySourceEnum::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcPropertySourceEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcFluidFlowProperties::FlowConditionTimeSeries() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcFluidFlowProperties::setFlowConditionTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcFluidFlowProperties::VelocityTimeSeries() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcFluidFlowProperties::setVelocityTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcFluidFlowProperties::FlowrateTimeSeries() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcFluidFlowProperties::setFlowrateTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcMaterial Ifc2x3::IfcFluidFlowProperties::Fluid() const {  return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcMaterial>(); }
void Ifc2x3::IfcFluidFlowProperties::setFluid(const ::Ifc2x3::IfcMaterial& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcFluidFlowProperties::PressureTimeSeries() const { if(get_attribute_value(9).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcFluidFlowProperties::setPressureTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
std::optional< std::string > Ifc2x3::IfcFluidFlowProperties::UserDefinedPropertySource() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } std::string v = get_attribute_value(10); return v; }
void Ifc2x3::IfcFluidFlowProperties::setUserDefinedPropertySource(const std::optional< std::string >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcFluidFlowProperties::TemperatureSingleValue() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcFluidFlowProperties::setTemperatureSingleValue(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< double > Ifc2x3::IfcFluidFlowProperties::WetBulbTemperatureSingleValue() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcFluidFlowProperties::setWetBulbTemperatureSingleValue(const std::optional< double >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcFluidFlowProperties::WetBulbTemperatureTimeSeries() const { if(get_attribute_value(13).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(13))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcFluidFlowProperties::setWetBulbTemperatureTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(13, v);if constexpr (false)unset_attribute_value(13); }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcFluidFlowProperties::TemperatureTimeSeries() const { if(get_attribute_value(14).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(14))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcFluidFlowProperties::setTemperatureTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(14, v);if constexpr (false)unset_attribute_value(14); }
::Ifc2x3::IfcDerivedMeasureValue Ifc2x3::IfcFluidFlowProperties::FlowrateSingleValue() const { if(get_attribute_value(15).isNull()) { return ::Ifc2x3::IfcDerivedMeasureValue{}; } return ((express::Base)(get_attribute_value(15))).as<::Ifc2x3::IfcDerivedMeasureValue>(); }
void Ifc2x3::IfcFluidFlowProperties::setFlowrateSingleValue(const ::Ifc2x3::IfcDerivedMeasureValue& v) { set_attribute_value(15, v);if constexpr (false)unset_attribute_value(15); }
std::optional< double > Ifc2x3::IfcFluidFlowProperties::FlowConditionSingleValue() const { if(get_attribute_value(16).isNull()) { return std::nullopt; } double v = get_attribute_value(16); return v; }
void Ifc2x3::IfcFluidFlowProperties::setFlowConditionSingleValue(const std::optional< double >& v) { if (v) {set_attribute_value(16, *v);} else {unset_attribute_value(16);} }
std::optional< double > Ifc2x3::IfcFluidFlowProperties::VelocitySingleValue() const { if(get_attribute_value(17).isNull()) { return std::nullopt; } double v = get_attribute_value(17); return v; }
void Ifc2x3::IfcFluidFlowProperties::setVelocitySingleValue(const std::optional< double >& v) { if (v) {set_attribute_value(17, *v);} else {unset_attribute_value(17);} }
std::optional< double > Ifc2x3::IfcFluidFlowProperties::PressureSingleValue() const { if(get_attribute_value(18).isNull()) { return std::nullopt; } double v = get_attribute_value(18); return v; }
void Ifc2x3::IfcFluidFlowProperties::setPressureSingleValue(const std::optional< double >& v) { if (v) {set_attribute_value(18, *v);} else {unset_attribute_value(18);} }


// const IfcParse::entity& Ifc2x3::IfcFluidFlowProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[372]); }
const IfcParse::entity& Ifc2x3::IfcFluidFlowProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[372]); }
// Ifc2x3::IfcFluidFlowProperties::IfcFluidFlowProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcFluidFlowProperties::IfcFluidFlowProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcPropertySourceEnum::Value v5_PropertySource, ::Ifc2x3::IfcTimeSeries v6_FlowConditionTimeSeries, ::Ifc2x3::IfcTimeSeries v7_VelocityTimeSeries, ::Ifc2x3::IfcTimeSeries v8_FlowrateTimeSeries, ::Ifc2x3::IfcMaterial v9_Fluid, ::Ifc2x3::IfcTimeSeries v10_PressureTimeSeries, std::optional< std::string > v11_UserDefinedPropertySource, std::optional< double > v12_TemperatureSingleValue, std::optional< double > v13_WetBulbTemperatureSingleValue, ::Ifc2x3::IfcTimeSeries v14_WetBulbTemperatureTimeSeries, ::Ifc2x3::IfcTimeSeries v15_TemperatureTimeSeries, ::Ifc2x3::IfcDerivedMeasureValue v16_FlowrateSingleValue, std::optional< double > v17_FlowConditionSingleValue, std::optional< double > v18_VelocitySingleValue, std::optional< double > v19_PressureSingleValue) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(19))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcPropertySourceEnum::Class(),(size_t)v5_PropertySource))); if (v6_FlowConditionTimeSeries) {set_attribute_value(5, (*v6_FlowConditionTimeSeries)); } if (v7_VelocityTimeSeries) {set_attribute_value(6, (*v7_VelocityTimeSeries)); } if (v8_FlowrateTimeSeries) {set_attribute_value(7, (*v8_FlowrateTimeSeries)); }set_attribute_value(8, (v9_Fluid)); if (v10_PressureTimeSeries) {set_attribute_value(9, (*v10_PressureTimeSeries)); } if (v11_UserDefinedPropertySource) {set_attribute_value(10, (*v11_UserDefinedPropertySource)); } if (v12_TemperatureSingleValue) {set_attribute_value(11, (*v12_TemperatureSingleValue)); } if (v13_WetBulbTemperatureSingleValue) {set_attribute_value(12, (*v13_WetBulbTemperatureSingleValue)); } if (v14_WetBulbTemperatureTimeSeries) {set_attribute_value(13, (*v14_WetBulbTemperatureTimeSeries)); } if (v15_TemperatureTimeSeries) {set_attribute_value(14, (*v15_TemperatureTimeSeries)); } if (v16_FlowrateSingleValue) {set_attribute_value(15, (*v16_FlowrateSingleValue)); } if (v17_FlowConditionSingleValue) {set_attribute_value(16, (*v17_FlowConditionSingleValue)); } if (v18_VelocitySingleValue) {set_attribute_value(17, (*v18_VelocitySingleValue)); } if (v19_PressureSingleValue) {set_attribute_value(18, (*v19_PressureSingleValue)); }; populate_derived(); }

// Function implementations for IfcFooting
::Ifc2x3::IfcFootingTypeEnum::Value Ifc2x3::IfcFooting::PredefinedType() const {  return ::Ifc2x3::IfcFootingTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcFooting::setPredefinedType(const ::Ifc2x3::IfcFootingTypeEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcFootingTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcFooting::declaration() const { return *((IfcParse::entity*)IFC2X3_types[376]); }
const IfcParse::entity& Ifc2x3::IfcFooting::Class() { return *((IfcParse::entity*)IFC2X3_types[376]); }
// Ifc2x3::IfcFooting::IfcFooting(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcFooting::IfcFooting(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcFootingTypeEnum::Value v9_PredefinedType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcFootingTypeEnum::Class(),(size_t)v9_PredefinedType)));; populate_derived(); }

// Function implementations for IfcFuelProperties
std::optional< double > Ifc2x3::IfcFuelProperties::CombustionTemperature() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcFuelProperties::setCombustionTemperature(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcFuelProperties::CarbonContent() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcFuelProperties::setCarbonContent(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcFuelProperties::LowerHeatingValue() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcFuelProperties::setLowerHeatingValue(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcFuelProperties::HigherHeatingValue() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcFuelProperties::setHigherHeatingValue(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcFuelProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[380]); }
const IfcParse::entity& Ifc2x3::IfcFuelProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[380]); }
// Ifc2x3::IfcFuelProperties::IfcFuelProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcFuelProperties::IfcFuelProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_CombustionTemperature, std::optional< double > v3_CarbonContent, std::optional< double > v4_LowerHeatingValue, std::optional< double > v5_HigherHeatingValue) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Material)); if (v2_CombustionTemperature) {set_attribute_value(1, (*v2_CombustionTemperature)); } if (v3_CarbonContent) {set_attribute_value(2, (*v3_CarbonContent)); } if (v4_LowerHeatingValue) {set_attribute_value(3, (*v4_LowerHeatingValue)); } if (v5_HigherHeatingValue) {set_attribute_value(4, (*v5_HigherHeatingValue)); }; populate_derived(); }

// Function implementations for IfcFurnishingElement


// const IfcParse::entity& Ifc2x3::IfcFurnishingElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[381]); }
const IfcParse::entity& Ifc2x3::IfcFurnishingElement::Class() { return *((IfcParse::entity*)IFC2X3_types[381]); }
// Ifc2x3::IfcFurnishingElement::IfcFurnishingElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcFurnishingElement::IfcFurnishingElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcFurnishingElementType


// const IfcParse::entity& Ifc2x3::IfcFurnishingElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[382]); }
const IfcParse::entity& Ifc2x3::IfcFurnishingElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[382]); }
// Ifc2x3::IfcFurnishingElementType::IfcFurnishingElementType(const std::weak_ptr<InstanceData>& e) : IfcElementType(e) { }
// Ifc2x3::IfcFurnishingElementType::IfcFurnishingElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcFurnitureStandard


// const IfcParse::entity& Ifc2x3::IfcFurnitureStandard::declaration() const { return *((IfcParse::entity*)IFC2X3_types[383]); }
const IfcParse::entity& Ifc2x3::IfcFurnitureStandard::Class() { return *((IfcParse::entity*)IFC2X3_types[383]); }
// Ifc2x3::IfcFurnitureStandard::IfcFurnitureStandard(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcFurnitureStandard::IfcFurnitureStandard(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcFurnitureType
::Ifc2x3::IfcAssemblyPlaceEnum::Value Ifc2x3::IfcFurnitureType::AssemblyPlace() const {  return ::Ifc2x3::IfcAssemblyPlaceEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcFurnitureType::setAssemblyPlace(const ::Ifc2x3::IfcAssemblyPlaceEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcAssemblyPlaceEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcFurnitureType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[384]); }
const IfcParse::entity& Ifc2x3::IfcFurnitureType::Class() { return *((IfcParse::entity*)IFC2X3_types[384]); }
// Ifc2x3::IfcFurnitureType::IfcFurnitureType(const std::weak_ptr<InstanceData>& e) : IfcFurnishingElementType(e) { }
// Ifc2x3::IfcFurnitureType::IfcFurnitureType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcAssemblyPlaceEnum::Value v10_AssemblyPlace) : IfcFurnishingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcAssemblyPlaceEnum::Class(),(size_t)v10_AssemblyPlace)));; populate_derived(); }

// Function implementations for IfcGasTerminalType
::Ifc2x3::IfcGasTerminalTypeEnum::Value Ifc2x3::IfcGasTerminalType::PredefinedType() const {  return ::Ifc2x3::IfcGasTerminalTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcGasTerminalType::setPredefinedType(const ::Ifc2x3::IfcGasTerminalTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcGasTerminalTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcGasTerminalType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[385]); }
const IfcParse::entity& Ifc2x3::IfcGasTerminalType::Class() { return *((IfcParse::entity*)IFC2X3_types[385]); }
// Ifc2x3::IfcGasTerminalType::IfcGasTerminalType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcGasTerminalType::IfcGasTerminalType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcGasTerminalTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcGasTerminalTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcGeneralMaterialProperties
std::optional< double > Ifc2x3::IfcGeneralMaterialProperties::MolecularWeight() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcGeneralMaterialProperties::setMolecularWeight(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcGeneralMaterialProperties::Porosity() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcGeneralMaterialProperties::setPorosity(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcGeneralMaterialProperties::MassDensity() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcGeneralMaterialProperties::setMassDensity(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcGeneralMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[387]); }
const IfcParse::entity& Ifc2x3::IfcGeneralMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[387]); }
// Ifc2x3::IfcGeneralMaterialProperties::IfcGeneralMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcGeneralMaterialProperties::IfcGeneralMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_MolecularWeight, std::optional< double > v3_Porosity, std::optional< double > v4_MassDensity) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Material)); if (v2_MolecularWeight) {set_attribute_value(1, (*v2_MolecularWeight)); } if (v3_Porosity) {set_attribute_value(2, (*v3_Porosity)); } if (v4_MassDensity) {set_attribute_value(3, (*v4_MassDensity)); }; populate_derived(); }

// Function implementations for IfcGeneralProfileProperties
std::optional< double > Ifc2x3::IfcGeneralProfileProperties::PhysicalWeight() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcGeneralProfileProperties::setPhysicalWeight(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcGeneralProfileProperties::Perimeter() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcGeneralProfileProperties::setPerimeter(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcGeneralProfileProperties::MinimumPlateThickness() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcGeneralProfileProperties::setMinimumPlateThickness(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcGeneralProfileProperties::MaximumPlateThickness() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcGeneralProfileProperties::setMaximumPlateThickness(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcGeneralProfileProperties::CrossSectionArea() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcGeneralProfileProperties::setCrossSectionArea(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcGeneralProfileProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[388]); }
const IfcParse::entity& Ifc2x3::IfcGeneralProfileProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[388]); }
// Ifc2x3::IfcGeneralProfileProperties::IfcGeneralProfileProperties(const std::weak_ptr<InstanceData>& e) : IfcProfileProperties(e) { }
// Ifc2x3::IfcGeneralProfileProperties::IfcGeneralProfileProperties(std::optional< std::string > v1_ProfileName, ::Ifc2x3::IfcProfileDef v2_ProfileDefinition, std::optional< double > v3_PhysicalWeight, std::optional< double > v4_Perimeter, std::optional< double > v5_MinimumPlateThickness, std::optional< double > v6_MaximumPlateThickness, std::optional< double > v7_CrossSectionArea) : IfcProfileProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_ProfileName) {set_attribute_value(0, (*v1_ProfileName)); } if (v2_ProfileDefinition) {set_attribute_value(1, (*v2_ProfileDefinition)); } if (v3_PhysicalWeight) {set_attribute_value(2, (*v3_PhysicalWeight)); } if (v4_Perimeter) {set_attribute_value(3, (*v4_Perimeter)); } if (v5_MinimumPlateThickness) {set_attribute_value(4, (*v5_MinimumPlateThickness)); } if (v6_MaximumPlateThickness) {set_attribute_value(5, (*v6_MaximumPlateThickness)); } if (v7_CrossSectionArea) {set_attribute_value(6, (*v7_CrossSectionArea)); }; populate_derived(); }

// Function implementations for IfcGeometricCurveSet


// const IfcParse::entity& Ifc2x3::IfcGeometricCurveSet::declaration() const { return *((IfcParse::entity*)IFC2X3_types[389]); }
const IfcParse::entity& Ifc2x3::IfcGeometricCurveSet::Class() { return *((IfcParse::entity*)IFC2X3_types[389]); }
// Ifc2x3::IfcGeometricCurveSet::IfcGeometricCurveSet(const std::weak_ptr<InstanceData>& e) : IfcGeometricSet(e) { }
// Ifc2x3::IfcGeometricCurveSet::IfcGeometricCurveSet(std::vector< ::Ifc2x3::IfcGeometricSetSelect > v1_Elements) : IfcGeometricSet(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Elements)->generalize());; populate_derived(); }

// Function implementations for IfcGeometricRepresentationContext
int Ifc2x3::IfcGeometricRepresentationContext::CoordinateSpaceDimension() const {  int v = get_attribute_value(2); return v; }
void Ifc2x3::IfcGeometricRepresentationContext::setCoordinateSpaceDimension(const int& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::optional< double > Ifc2x3::IfcGeometricRepresentationContext::Precision() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcGeometricRepresentationContext::setPrecision(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcGeometricRepresentationContext::WorldCoordinateSystem() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcGeometricRepresentationContext::setWorldCoordinateSystem(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcDirection Ifc2x3::IfcGeometricRepresentationContext::TrueNorth() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcDirection{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcGeometricRepresentationContext::setTrueNorth(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }

std::vector<::Ifc2x3::IfcGeometricRepresentationSubContext> Ifc2x3::IfcGeometricRepresentationContext::HasSubContexts() const { return cast_vector<IfcGeometricRepresentationSubContext>(file()->getInverse(data()->id(), IFC2X3_types[393], 6)); }

// const IfcParse::entity& Ifc2x3::IfcGeometricRepresentationContext::declaration() const { return *((IfcParse::entity*)IFC2X3_types[391]); }
const IfcParse::entity& Ifc2x3::IfcGeometricRepresentationContext::Class() { return *((IfcParse::entity*)IFC2X3_types[391]); }
// Ifc2x3::IfcGeometricRepresentationContext::IfcGeometricRepresentationContext(const std::weak_ptr<InstanceData>& e) : IfcRepresentationContext(e) { }
// Ifc2x3::IfcGeometricRepresentationContext::IfcGeometricRepresentationContext(std::optional< std::string > v1_ContextIdentifier, std::optional< std::string > v2_ContextType, int v3_CoordinateSpaceDimension, std::optional< double > v4_Precision, ::Ifc2x3::IfcAxis2Placement v5_WorldCoordinateSystem, ::Ifc2x3::IfcDirection v6_TrueNorth) : IfcRepresentationContext(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) {  if (v1_ContextIdentifier) {set_attribute_value(0, (*v1_ContextIdentifier)); } if (v2_ContextType) {set_attribute_value(1, (*v2_ContextType)); }set_attribute_value(2, (v3_CoordinateSpaceDimension)); if (v4_Precision) {set_attribute_value(3, (*v4_Precision)); }set_attribute_value(4, (v5_WorldCoordinateSystem)); if (v6_TrueNorth) {set_attribute_value(5, (*v6_TrueNorth)); }; populate_derived(); }

// Function implementations for IfcGeometricRepresentationItem


// const IfcParse::entity& Ifc2x3::IfcGeometricRepresentationItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[392]); }
const IfcParse::entity& Ifc2x3::IfcGeometricRepresentationItem::Class() { return *((IfcParse::entity*)IFC2X3_types[392]); }
// Ifc2x3::IfcGeometricRepresentationItem::IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>& e) : IfcRepresentationItem(e) { }
// Ifc2x3::IfcGeometricRepresentationItem::IfcGeometricRepresentationItem() : IfcRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcGeometricRepresentationSubContext
::Ifc2x3::IfcGeometricRepresentationContext Ifc2x3::IfcGeometricRepresentationSubContext::ParentContext() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcGeometricRepresentationContext>(); }
void Ifc2x3::IfcGeometricRepresentationSubContext::setParentContext(const ::Ifc2x3::IfcGeometricRepresentationContext& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< double > Ifc2x3::IfcGeometricRepresentationSubContext::TargetScale() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcGeometricRepresentationSubContext::setTargetScale(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
::Ifc2x3::IfcGeometricProjectionEnum::Value Ifc2x3::IfcGeometricRepresentationSubContext::TargetView() const {  return ::Ifc2x3::IfcGeometricProjectionEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcGeometricRepresentationSubContext::setTargetView(const ::Ifc2x3::IfcGeometricProjectionEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcGeometricProjectionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }
std::optional< std::string > Ifc2x3::IfcGeometricRepresentationSubContext::UserDefinedTargetView() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::string v = get_attribute_value(9); return v; }
void Ifc2x3::IfcGeometricRepresentationSubContext::setUserDefinedTargetView(const std::optional< std::string >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcGeometricRepresentationSubContext::declaration() const { return *((IfcParse::entity*)IFC2X3_types[393]); }
const IfcParse::entity& Ifc2x3::IfcGeometricRepresentationSubContext::Class() { return *((IfcParse::entity*)IFC2X3_types[393]); }
// Ifc2x3::IfcGeometricRepresentationSubContext::IfcGeometricRepresentationSubContext(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationContext(e) { }
// Ifc2x3::IfcGeometricRepresentationSubContext::IfcGeometricRepresentationSubContext(std::optional< std::string > v1_ContextIdentifier, std::optional< std::string > v2_ContextType, ::Ifc2x3::IfcGeometricRepresentationContext v7_ParentContext, std::optional< double > v8_TargetScale, ::Ifc2x3::IfcGeometricProjectionEnum::Value v9_TargetView, std::optional< std::string > v10_UserDefinedTargetView) : IfcGeometricRepresentationContext(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) {  if (v1_ContextIdentifier) {set_attribute_value(0, (*v1_ContextIdentifier)); } if (v2_ContextType) {set_attribute_value(1, (*v2_ContextType)); }set_attribute_value(6, (v7_ParentContext)); if (v8_TargetScale) {set_attribute_value(7, (*v8_TargetScale)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGeometricProjectionEnum::Class(),(size_t)v9_TargetView))); if (v10_UserDefinedTargetView) {set_attribute_value(9, (*v10_UserDefinedTargetView)); }; populate_derived(); }

// Function implementations for IfcGeometricSet
std::vector< ::Ifc2x3::IfcGeometricSetSelect > Ifc2x3::IfcGeometricSet::Elements() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcGeometricSetSelect>(es); }
void Ifc2x3::IfcGeometricSet::setElements(const std::vector< ::Ifc2x3::IfcGeometricSetSelect >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcGeometricSet::declaration() const { return *((IfcParse::entity*)IFC2X3_types[394]); }
const IfcParse::entity& Ifc2x3::IfcGeometricSet::Class() { return *((IfcParse::entity*)IFC2X3_types[394]); }
// Ifc2x3::IfcGeometricSet::IfcGeometricSet(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcGeometricSet::IfcGeometricSet(std::vector< ::Ifc2x3::IfcGeometricSetSelect > v1_Elements) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Elements)->generalize());; populate_derived(); }

// Function implementations for IfcGrid
std::vector< ::Ifc2x3::IfcGridAxis > Ifc2x3::IfcGrid::UAxes() const {  std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcGridAxis>(es); }
void Ifc2x3::IfcGrid::setUAxes(const std::vector< ::Ifc2x3::IfcGridAxis >& v) { set_attribute_value(7, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(7); }
std::vector< ::Ifc2x3::IfcGridAxis > Ifc2x3::IfcGrid::VAxes() const {  std::vector<express::Base> es = get_attribute_value(8); return cast_vector<::Ifc2x3::IfcGridAxis>(es); }
void Ifc2x3::IfcGrid::setVAxes(const std::vector< ::Ifc2x3::IfcGridAxis >& v) { set_attribute_value(8, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(8); }
std::optional< std::vector< ::Ifc2x3::IfcGridAxis > > Ifc2x3::IfcGrid::WAxes() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(9); return cast_vector<::Ifc2x3::IfcGridAxis>(es); }
void Ifc2x3::IfcGrid::setWAxes(const std::optional< std::vector< ::Ifc2x3::IfcGridAxis > >& v) { if (v) {set_attribute_value(9, cast_vector<express::Base>(*v));} else {unset_attribute_value(9);} }

std::vector<::Ifc2x3::IfcRelContainedInSpatialStructure> Ifc2x3::IfcGrid::ContainedInStructure() const { return cast_vector<IfcRelContainedInSpatialStructure>(file()->getInverse(data()->id(), IFC2X3_types[698], 4)); }

// const IfcParse::entity& Ifc2x3::IfcGrid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[398]); }
const IfcParse::entity& Ifc2x3::IfcGrid::Class() { return *((IfcParse::entity*)IFC2X3_types[398]); }
// Ifc2x3::IfcGrid::IfcGrid(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcGrid::IfcGrid(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::vector< ::Ifc2x3::IfcGridAxis > v8_UAxes, std::vector< ::Ifc2x3::IfcGridAxis > v9_VAxes, std::optional< std::vector< ::Ifc2x3::IfcGridAxis > > v10_WAxes) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_UAxes)->generalize());set_attribute_value(8, (v9_VAxes)->generalize()); if (v10_WAxes) {set_attribute_value(9, (*v10_WAxes)->generalize()); }; populate_derived(); }

// Function implementations for IfcGridAxis
std::optional< std::string > Ifc2x3::IfcGridAxis::AxisTag() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcGridAxis::setAxisTag(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
::Ifc2x3::IfcCurve Ifc2x3::IfcGridAxis::AxisCurve() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcGridAxis::setAxisCurve(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
bool Ifc2x3::IfcGridAxis::SameSense() const {  bool v = get_attribute_value(2); return v; }
void Ifc2x3::IfcGridAxis::setSameSense(const bool& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }

std::vector<::Ifc2x3::IfcGrid> Ifc2x3::IfcGridAxis::PartOfW() const { return cast_vector<IfcGrid>(file()->getInverse(data()->id(), IFC2X3_types[398], 9)); }
std::vector<::Ifc2x3::IfcGrid> Ifc2x3::IfcGridAxis::PartOfV() const { return cast_vector<IfcGrid>(file()->getInverse(data()->id(), IFC2X3_types[398], 8)); }
std::vector<::Ifc2x3::IfcGrid> Ifc2x3::IfcGridAxis::PartOfU() const { return cast_vector<IfcGrid>(file()->getInverse(data()->id(), IFC2X3_types[398], 7)); }
std::vector<::Ifc2x3::IfcVirtualGridIntersection> Ifc2x3::IfcGridAxis::HasIntersections() const { return cast_vector<IfcVirtualGridIntersection>(file()->getInverse(data()->id(), IFC2X3_types[953], 0)); }

// const IfcParse::entity& Ifc2x3::IfcGridAxis::declaration() const { return *((IfcParse::entity*)IFC2X3_types[399]); }
const IfcParse::entity& Ifc2x3::IfcGridAxis::Class() { return *((IfcParse::entity*)IFC2X3_types[399]); }
// Ifc2x3::IfcGridAxis::IfcGridAxis(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcGridAxis::IfcGridAxis(std::optional< std::string > v1_AxisTag, ::Ifc2x3::IfcCurve v2_AxisCurve, bool v3_SameSense) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_AxisTag) {set_attribute_value(0, (*v1_AxisTag)); }set_attribute_value(1, (v2_AxisCurve));set_attribute_value(2, (v3_SameSense));; populate_derived(); }

// Function implementations for IfcGridPlacement
::Ifc2x3::IfcVirtualGridIntersection Ifc2x3::IfcGridPlacement::PlacementLocation() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcVirtualGridIntersection>(); }
void Ifc2x3::IfcGridPlacement::setPlacementLocation(const ::Ifc2x3::IfcVirtualGridIntersection& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcVirtualGridIntersection Ifc2x3::IfcGridPlacement::PlacementRefDirection() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcVirtualGridIntersection{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcVirtualGridIntersection>(); }
void Ifc2x3::IfcGridPlacement::setPlacementRefDirection(const ::Ifc2x3::IfcVirtualGridIntersection& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcGridPlacement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[400]); }
const IfcParse::entity& Ifc2x3::IfcGridPlacement::Class() { return *((IfcParse::entity*)IFC2X3_types[400]); }
// Ifc2x3::IfcGridPlacement::IfcGridPlacement(const std::weak_ptr<InstanceData>& e) : IfcObjectPlacement(e) { }
// Ifc2x3::IfcGridPlacement::IfcGridPlacement(::Ifc2x3::IfcVirtualGridIntersection v1_PlacementLocation, ::Ifc2x3::IfcVirtualGridIntersection v2_PlacementRefDirection) : IfcObjectPlacement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_PlacementLocation)); if (v2_PlacementRefDirection) {set_attribute_value(1, (*v2_PlacementRefDirection)); }; populate_derived(); }

// Function implementations for IfcGroup

std::vector<::Ifc2x3::IfcRelAssignsToGroup> Ifc2x3::IfcGroup::IsGroupedBy() const { return cast_vector<IfcRelAssignsToGroup>(file()->getInverse(data()->id(), IFC2X3_types[672], 6)); }

// const IfcParse::entity& Ifc2x3::IfcGroup::declaration() const { return *((IfcParse::entity*)IFC2X3_types[401]); }
const IfcParse::entity& Ifc2x3::IfcGroup::Class() { return *((IfcParse::entity*)IFC2X3_types[401]); }
// Ifc2x3::IfcGroup::IfcGroup(const std::weak_ptr<InstanceData>& e) : IfcObject(e) { }
// Ifc2x3::IfcGroup::IfcGroup(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcHalfSpaceSolid
::Ifc2x3::IfcSurface Ifc2x3::IfcHalfSpaceSolid::BaseSurface() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcSurface>(); }
void Ifc2x3::IfcHalfSpaceSolid::setBaseSurface(const ::Ifc2x3::IfcSurface& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
bool Ifc2x3::IfcHalfSpaceSolid::AgreementFlag() const {  bool v = get_attribute_value(1); return v; }
void Ifc2x3::IfcHalfSpaceSolid::setAgreementFlag(const bool& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcHalfSpaceSolid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[402]); }
const IfcParse::entity& Ifc2x3::IfcHalfSpaceSolid::Class() { return *((IfcParse::entity*)IFC2X3_types[402]); }
// Ifc2x3::IfcHalfSpaceSolid::IfcHalfSpaceSolid(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcHalfSpaceSolid::IfcHalfSpaceSolid(::Ifc2x3::IfcSurface v1_BaseSurface, bool v2_AgreementFlag) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_BaseSurface));set_attribute_value(1, (v2_AgreementFlag));; populate_derived(); }

// Function implementations for IfcHeatExchangerType
::Ifc2x3::IfcHeatExchangerTypeEnum::Value Ifc2x3::IfcHeatExchangerType::PredefinedType() const {  return ::Ifc2x3::IfcHeatExchangerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcHeatExchangerType::setPredefinedType(const ::Ifc2x3::IfcHeatExchangerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcHeatExchangerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcHeatExchangerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[404]); }
const IfcParse::entity& Ifc2x3::IfcHeatExchangerType::Class() { return *((IfcParse::entity*)IFC2X3_types[404]); }
// Ifc2x3::IfcHeatExchangerType::IfcHeatExchangerType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcHeatExchangerType::IfcHeatExchangerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcHeatExchangerTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcHeatExchangerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcHumidifierType
::Ifc2x3::IfcHumidifierTypeEnum::Value Ifc2x3::IfcHumidifierType::PredefinedType() const {  return ::Ifc2x3::IfcHumidifierTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcHumidifierType::setPredefinedType(const ::Ifc2x3::IfcHumidifierTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcHumidifierTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcHumidifierType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[409]); }
const IfcParse::entity& Ifc2x3::IfcHumidifierType::Class() { return *((IfcParse::entity*)IFC2X3_types[409]); }
// Ifc2x3::IfcHumidifierType::IfcHumidifierType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcHumidifierType::IfcHumidifierType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcHumidifierTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcHumidifierTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcHygroscopicMaterialProperties
std::optional< double > Ifc2x3::IfcHygroscopicMaterialProperties::UpperVaporResistanceFactor() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcHygroscopicMaterialProperties::setUpperVaporResistanceFactor(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcHygroscopicMaterialProperties::LowerVaporResistanceFactor() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcHygroscopicMaterialProperties::setLowerVaporResistanceFactor(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcHygroscopicMaterialProperties::IsothermalMoistureCapacity() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcHygroscopicMaterialProperties::setIsothermalMoistureCapacity(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcHygroscopicMaterialProperties::VaporPermeability() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcHygroscopicMaterialProperties::setVaporPermeability(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcHygroscopicMaterialProperties::MoistureDiffusivity() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcHygroscopicMaterialProperties::setMoistureDiffusivity(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }


// const IfcParse::entity& Ifc2x3::IfcHygroscopicMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[411]); }
const IfcParse::entity& Ifc2x3::IfcHygroscopicMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[411]); }
// Ifc2x3::IfcHygroscopicMaterialProperties::IfcHygroscopicMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcHygroscopicMaterialProperties::IfcHygroscopicMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_UpperVaporResistanceFactor, std::optional< double > v3_LowerVaporResistanceFactor, std::optional< double > v4_IsothermalMoistureCapacity, std::optional< double > v5_VaporPermeability, std::optional< double > v6_MoistureDiffusivity) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_Material)); if (v2_UpperVaporResistanceFactor) {set_attribute_value(1, (*v2_UpperVaporResistanceFactor)); } if (v3_LowerVaporResistanceFactor) {set_attribute_value(2, (*v3_LowerVaporResistanceFactor)); } if (v4_IsothermalMoistureCapacity) {set_attribute_value(3, (*v4_IsothermalMoistureCapacity)); } if (v5_VaporPermeability) {set_attribute_value(4, (*v5_VaporPermeability)); } if (v6_MoistureDiffusivity) {set_attribute_value(5, (*v6_MoistureDiffusivity)); }; populate_derived(); }

// Function implementations for IfcIShapeProfileDef
double Ifc2x3::IfcIShapeProfileDef::OverallWidth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcIShapeProfileDef::setOverallWidth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcIShapeProfileDef::OverallDepth() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcIShapeProfileDef::setOverallDepth(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcIShapeProfileDef::WebThickness() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcIShapeProfileDef::setWebThickness(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcIShapeProfileDef::FlangeThickness() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcIShapeProfileDef::setFlangeThickness(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< double > Ifc2x3::IfcIShapeProfileDef::FilletRadius() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcIShapeProfileDef::setFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcIShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[424]); }
const IfcParse::entity& Ifc2x3::IfcIShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[424]); }
// Ifc2x3::IfcIShapeProfileDef::IfcIShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcIShapeProfileDef::IfcIShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_OverallWidth, double v5_OverallDepth, double v6_WebThickness, double v7_FlangeThickness, std::optional< double > v8_FilletRadius) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_OverallWidth));set_attribute_value(4, (v5_OverallDepth));set_attribute_value(5, (v6_WebThickness));set_attribute_value(6, (v7_FlangeThickness)); if (v8_FilletRadius) {set_attribute_value(7, (*v8_FilletRadius)); }; populate_derived(); }

// Function implementations for IfcImageTexture
std::string Ifc2x3::IfcImageTexture::UrlReference() const {  std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcImageTexture::setUrlReference(const std::string& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcImageTexture::declaration() const { return *((IfcParse::entity*)IFC2X3_types[414]); }
const IfcParse::entity& Ifc2x3::IfcImageTexture::Class() { return *((IfcParse::entity*)IFC2X3_types[414]); }
// Ifc2x3::IfcImageTexture::IfcImageTexture(const std::weak_ptr<InstanceData>& e) : IfcSurfaceTexture(e) { }
// Ifc2x3::IfcImageTexture::IfcImageTexture(bool v1_RepeatS, bool v2_RepeatT, ::Ifc2x3::IfcSurfaceTextureEnum::Value v3_TextureType, ::Ifc2x3::IfcCartesianTransformationOperator2D v4_TextureTransform, std::string v5_UrlReference) : IfcSurfaceTexture(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_RepeatS));set_attribute_value(1, (v2_RepeatT));set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcSurfaceTextureEnum::Class(),(size_t)v3_TextureType))); if (v4_TextureTransform) {set_attribute_value(3, (*v4_TextureTransform)); }set_attribute_value(4, (v5_UrlReference));; populate_derived(); }

// Function implementations for IfcInventory
::Ifc2x3::IfcInventoryTypeEnum::Value Ifc2x3::IfcInventory::InventoryType() const {  return ::Ifc2x3::IfcInventoryTypeEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcInventory::setInventoryType(const ::Ifc2x3::IfcInventoryTypeEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcInventoryTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcActorSelect Ifc2x3::IfcInventory::Jurisdiction() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcInventory::setJurisdiction(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::vector< ::Ifc2x3::IfcPerson > Ifc2x3::IfcInventory::ResponsiblePersons() const {  std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcPerson>(es); }
void Ifc2x3::IfcInventory::setResponsiblePersons(const std::vector< ::Ifc2x3::IfcPerson >& v) { set_attribute_value(7, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcCalendarDate Ifc2x3::IfcInventory::LastUpdateDate() const {  return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcCalendarDate>(); }
void Ifc2x3::IfcInventory::setLastUpdateDate(const ::Ifc2x3::IfcCalendarDate& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcCostValue Ifc2x3::IfcInventory::CurrentValue() const { if(get_attribute_value(9).isNull()) { return ::Ifc2x3::IfcCostValue{}; } return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcCostValue>(); }
void Ifc2x3::IfcInventory::setCurrentValue(const ::Ifc2x3::IfcCostValue& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
::Ifc2x3::IfcCostValue Ifc2x3::IfcInventory::OriginalValue() const { if(get_attribute_value(10).isNull()) { return ::Ifc2x3::IfcCostValue{}; } return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcCostValue>(); }
void Ifc2x3::IfcInventory::setOriginalValue(const ::Ifc2x3::IfcCostValue& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }


// const IfcParse::entity& Ifc2x3::IfcInventory::declaration() const { return *((IfcParse::entity*)IFC2X3_types[419]); }
const IfcParse::entity& Ifc2x3::IfcInventory::Class() { return *((IfcParse::entity*)IFC2X3_types[419]); }
// Ifc2x3::IfcInventory::IfcInventory(const std::weak_ptr<InstanceData>& e) : IfcGroup(e) { }
// Ifc2x3::IfcInventory::IfcInventory(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcInventoryTypeEnum::Value v6_InventoryType, ::Ifc2x3::IfcActorSelect v7_Jurisdiction, std::vector< ::Ifc2x3::IfcPerson > v8_ResponsiblePersons, ::Ifc2x3::IfcCalendarDate v9_LastUpdateDate, ::Ifc2x3::IfcCostValue v10_CurrentValue, ::Ifc2x3::IfcCostValue v11_OriginalValue) : IfcGroup(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcInventoryTypeEnum::Class(),(size_t)v6_InventoryType)));set_attribute_value(6, (v7_Jurisdiction));set_attribute_value(7, (v8_ResponsiblePersons)->generalize());set_attribute_value(8, (v9_LastUpdateDate)); if (v10_CurrentValue) {set_attribute_value(9, (*v10_CurrentValue)); } if (v11_OriginalValue) {set_attribute_value(10, (*v11_OriginalValue)); }; populate_derived(); }

// Function implementations for IfcIrregularTimeSeries
std::vector< ::Ifc2x3::IfcIrregularTimeSeriesValue > Ifc2x3::IfcIrregularTimeSeries::Values() const {  std::vector<express::Base> es = get_attribute_value(8); return cast_vector<::Ifc2x3::IfcIrregularTimeSeriesValue>(es); }
void Ifc2x3::IfcIrregularTimeSeries::setValues(const std::vector< ::Ifc2x3::IfcIrregularTimeSeriesValue >& v) { set_attribute_value(8, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcIrregularTimeSeries::declaration() const { return *((IfcParse::entity*)IFC2X3_types[422]); }
const IfcParse::entity& Ifc2x3::IfcIrregularTimeSeries::Class() { return *((IfcParse::entity*)IFC2X3_types[422]); }
// Ifc2x3::IfcIrregularTimeSeries::IfcIrregularTimeSeries(const std::weak_ptr<InstanceData>& e) : IfcTimeSeries(e) { }
// Ifc2x3::IfcIrregularTimeSeries::IfcIrregularTimeSeries(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcDateTimeSelect v3_StartTime, ::Ifc2x3::IfcDateTimeSelect v4_EndTime, ::Ifc2x3::IfcTimeSeriesDataTypeEnum::Value v5_TimeSeriesDataType, ::Ifc2x3::IfcDataOriginEnum::Value v6_DataOrigin, std::optional< std::string > v7_UserDefinedDataOrigin, ::Ifc2x3::IfcUnit v8_Unit, std::vector< ::Ifc2x3::IfcIrregularTimeSeriesValue > v9_Values) : IfcTimeSeries(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_StartTime));set_attribute_value(3, (v4_EndTime));set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcTimeSeriesDataTypeEnum::Class(),(size_t)v5_TimeSeriesDataType)));set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcDataOriginEnum::Class(),(size_t)v6_DataOrigin))); if (v7_UserDefinedDataOrigin) {set_attribute_value(6, (*v7_UserDefinedDataOrigin)); } if (v8_Unit) {set_attribute_value(7, (*v8_Unit)); }set_attribute_value(8, (v9_Values)->generalize());; populate_derived(); }

// Function implementations for IfcIrregularTimeSeriesValue
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcIrregularTimeSeriesValue::TimeStamp() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcIrregularTimeSeriesValue::setTimeStamp(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcIrregularTimeSeriesValue::ListValues() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcIrregularTimeSeriesValue::setListValues(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcIrregularTimeSeriesValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[423]); }
const IfcParse::entity& Ifc2x3::IfcIrregularTimeSeriesValue::Class() { return *((IfcParse::entity*)IFC2X3_types[423]); }
// Ifc2x3::IfcIrregularTimeSeriesValue::IfcIrregularTimeSeriesValue(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcIrregularTimeSeriesValue::IfcIrregularTimeSeriesValue(::Ifc2x3::IfcDateTimeSelect v1_TimeStamp, std::vector< ::Ifc2x3::IfcValue > v2_ListValues) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_TimeStamp));set_attribute_value(1, (v2_ListValues)->generalize());; populate_derived(); }

// Function implementations for IfcJunctionBoxType
::Ifc2x3::IfcJunctionBoxTypeEnum::Value Ifc2x3::IfcJunctionBoxType::PredefinedType() const {  return ::Ifc2x3::IfcJunctionBoxTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcJunctionBoxType::setPredefinedType(const ::Ifc2x3::IfcJunctionBoxTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcJunctionBoxTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcJunctionBoxType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[426]); }
const IfcParse::entity& Ifc2x3::IfcJunctionBoxType::Class() { return *((IfcParse::entity*)IFC2X3_types[426]); }
// Ifc2x3::IfcJunctionBoxType::IfcJunctionBoxType(const std::weak_ptr<InstanceData>& e) : IfcFlowFittingType(e) { }
// Ifc2x3::IfcJunctionBoxType::IfcJunctionBoxType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcJunctionBoxTypeEnum::Value v10_PredefinedType) : IfcFlowFittingType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcJunctionBoxTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcLShapeProfileDef
double Ifc2x3::IfcLShapeProfileDef::Depth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcLShapeProfileDef::setDepth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
std::optional< double > Ifc2x3::IfcLShapeProfileDef::Width() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcLShapeProfileDef::setWidth(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
double Ifc2x3::IfcLShapeProfileDef::Thickness() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcLShapeProfileDef::setThickness(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
std::optional< double > Ifc2x3::IfcLShapeProfileDef::FilletRadius() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcLShapeProfileDef::setFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcLShapeProfileDef::EdgeRadius() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcLShapeProfileDef::setEdgeRadius(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcLShapeProfileDef::LegSlope() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcLShapeProfileDef::setLegSlope(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcLShapeProfileDef::CentreOfGravityInX() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcLShapeProfileDef::setCentreOfGravityInX(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcLShapeProfileDef::CentreOfGravityInY() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcLShapeProfileDef::setCentreOfGravityInY(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }


// const IfcParse::entity& Ifc2x3::IfcLShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[464]); }
const IfcParse::entity& Ifc2x3::IfcLShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[464]); }
// Ifc2x3::IfcLShapeProfileDef::IfcLShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcLShapeProfileDef::IfcLShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_Depth, std::optional< double > v5_Width, double v6_Thickness, std::optional< double > v7_FilletRadius, std::optional< double > v8_EdgeRadius, std::optional< double > v9_LegSlope, std::optional< double > v10_CentreOfGravityInX, std::optional< double > v11_CentreOfGravityInY) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_Depth)); if (v5_Width) {set_attribute_value(4, (*v5_Width)); }set_attribute_value(5, (v6_Thickness)); if (v7_FilletRadius) {set_attribute_value(6, (*v7_FilletRadius)); } if (v8_EdgeRadius) {set_attribute_value(7, (*v8_EdgeRadius)); } if (v9_LegSlope) {set_attribute_value(8, (*v9_LegSlope)); } if (v10_CentreOfGravityInX) {set_attribute_value(9, (*v10_CentreOfGravityInX)); } if (v11_CentreOfGravityInY) {set_attribute_value(10, (*v11_CentreOfGravityInY)); }; populate_derived(); }

// Function implementations for IfcLaborResource
std::optional< std::string > Ifc2x3::IfcLaborResource::SkillSet() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::string v = get_attribute_value(9); return v; }
void Ifc2x3::IfcLaborResource::setSkillSet(const std::optional< std::string >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcLaborResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[430]); }
const IfcParse::entity& Ifc2x3::IfcLaborResource::Class() { return *((IfcParse::entity*)IFC2X3_types[430]); }
// Ifc2x3::IfcLaborResource::IfcLaborResource(const std::weak_ptr<InstanceData>& e) : IfcConstructionResource(e) { }
// Ifc2x3::IfcLaborResource::IfcLaborResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_ResourceIdentifier, std::optional< std::string > v7_ResourceGroup, std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > v8_ResourceConsumption, ::Ifc2x3::IfcMeasureWithUnit v9_BaseQuantity, std::optional< std::string > v10_SkillSet) : IfcConstructionResource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ResourceIdentifier) {set_attribute_value(5, (*v6_ResourceIdentifier)); } if (v7_ResourceGroup) {set_attribute_value(6, (*v7_ResourceGroup)); } if (v8_ResourceConsumption) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(),(size_t)*v8_ResourceConsumption))); } if (v9_BaseQuantity) {set_attribute_value(8, (*v9_BaseQuantity)); } if (v10_SkillSet) {set_attribute_value(9, (*v10_SkillSet)); }; populate_derived(); }

// Function implementations for IfcLampType
::Ifc2x3::IfcLampTypeEnum::Value Ifc2x3::IfcLampType::PredefinedType() const {  return ::Ifc2x3::IfcLampTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcLampType::setPredefinedType(const ::Ifc2x3::IfcLampTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcLampTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcLampType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[431]); }
const IfcParse::entity& Ifc2x3::IfcLampType::Class() { return *((IfcParse::entity*)IFC2X3_types[431]); }
// Ifc2x3::IfcLampType::IfcLampType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcLampType::IfcLampType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcLampTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcLampTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcLibraryInformation
std::string Ifc2x3::IfcLibraryInformation::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcLibraryInformation::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcLibraryInformation::Version() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcLibraryInformation::setVersion(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcOrganization Ifc2x3::IfcLibraryInformation::Publisher() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcOrganization{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcOrganization>(); }
void Ifc2x3::IfcLibraryInformation::setPublisher(const ::Ifc2x3::IfcOrganization& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcCalendarDate Ifc2x3::IfcLibraryInformation::VersionDate() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcCalendarDate{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcCalendarDate>(); }
void Ifc2x3::IfcLibraryInformation::setVersionDate(const ::Ifc2x3::IfcCalendarDate& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
std::optional< std::vector< ::Ifc2x3::IfcLibraryReference > > Ifc2x3::IfcLibraryInformation::LibraryReference() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcLibraryReference>(es); }
void Ifc2x3::IfcLibraryInformation::setLibraryReference(const std::optional< std::vector< ::Ifc2x3::IfcLibraryReference > >& v) { if (v) {set_attribute_value(4, cast_vector<express::Base>(*v));} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcLibraryInformation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[436]); }
const IfcParse::entity& Ifc2x3::IfcLibraryInformation::Class() { return *((IfcParse::entity*)IFC2X3_types[436]); }
// Ifc2x3::IfcLibraryInformation::IfcLibraryInformation(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcLibraryInformation::IfcLibraryInformation(std::string v1_Name, std::optional< std::string > v2_Version, ::Ifc2x3::IfcOrganization v3_Publisher, ::Ifc2x3::IfcCalendarDate v4_VersionDate, std::optional< std::vector< ::Ifc2x3::IfcLibraryReference > > v5_LibraryReference) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Name)); if (v2_Version) {set_attribute_value(1, (*v2_Version)); } if (v3_Publisher) {set_attribute_value(2, (*v3_Publisher)); } if (v4_VersionDate) {set_attribute_value(3, (*v4_VersionDate)); } if (v5_LibraryReference) {set_attribute_value(4, (*v5_LibraryReference)->generalize()); }; populate_derived(); }

// Function implementations for IfcLibraryReference

std::vector<::Ifc2x3::IfcLibraryInformation> Ifc2x3::IfcLibraryReference::ReferenceIntoLibrary() const { return cast_vector<IfcLibraryInformation>(file()->getInverse(data()->id(), IFC2X3_types[436], 4)); }

// const IfcParse::entity& Ifc2x3::IfcLibraryReference::declaration() const { return *((IfcParse::entity*)IFC2X3_types[437]); }
const IfcParse::entity& Ifc2x3::IfcLibraryReference::Class() { return *((IfcParse::entity*)IFC2X3_types[437]); }
// Ifc2x3::IfcLibraryReference::IfcLibraryReference(const std::weak_ptr<InstanceData>& e) : IfcExternalReference(e) { }
// Ifc2x3::IfcLibraryReference::IfcLibraryReference(std::optional< std::string > v1_Location, std::optional< std::string > v2_ItemReference, std::optional< std::string > v3_Name) : IfcExternalReference(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Location) {set_attribute_value(0, (*v1_Location)); } if (v2_ItemReference) {set_attribute_value(1, (*v2_ItemReference)); } if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcLightDistributionData
double Ifc2x3::IfcLightDistributionData::MainPlaneAngle() const {  double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcLightDistributionData::setMainPlaneAngle(const double& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< double > /*[1:?]*/ Ifc2x3::IfcLightDistributionData::SecondaryPlaneAngle() const {  std::vector< double > /*[1:?]*/ v = get_attribute_value(1); return v; }
void Ifc2x3::IfcLightDistributionData::setSecondaryPlaneAngle(const std::vector< double > /*[1:?]*/& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::vector< double > /*[1:?]*/ Ifc2x3::IfcLightDistributionData::LuminousIntensity() const {  std::vector< double > /*[1:?]*/ v = get_attribute_value(2); return v; }
void Ifc2x3::IfcLightDistributionData::setLuminousIntensity(const std::vector< double > /*[1:?]*/& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcLightDistributionData::declaration() const { return *((IfcParse::entity*)IFC2X3_types[440]); }
const IfcParse::entity& Ifc2x3::IfcLightDistributionData::Class() { return *((IfcParse::entity*)IFC2X3_types[440]); }
// Ifc2x3::IfcLightDistributionData::IfcLightDistributionData(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcLightDistributionData::IfcLightDistributionData(double v1_MainPlaneAngle, std::vector< double > /*[1:?]*/ v2_SecondaryPlaneAngle, std::vector< double > /*[1:?]*/ v3_LuminousIntensity) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_MainPlaneAngle));set_attribute_value(1, (v2_SecondaryPlaneAngle));set_attribute_value(2, (v3_LuminousIntensity));; populate_derived(); }

// Function implementations for IfcLightFixtureType
::Ifc2x3::IfcLightFixtureTypeEnum::Value Ifc2x3::IfcLightFixtureType::PredefinedType() const {  return ::Ifc2x3::IfcLightFixtureTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcLightFixtureType::setPredefinedType(const ::Ifc2x3::IfcLightFixtureTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcLightFixtureTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcLightFixtureType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[443]); }
const IfcParse::entity& Ifc2x3::IfcLightFixtureType::Class() { return *((IfcParse::entity*)IFC2X3_types[443]); }
// Ifc2x3::IfcLightFixtureType::IfcLightFixtureType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcLightFixtureType::IfcLightFixtureType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcLightFixtureTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcLightFixtureTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcLightIntensityDistribution
::Ifc2x3::IfcLightDistributionCurveEnum::Value Ifc2x3::IfcLightIntensityDistribution::LightDistributionCurve() const {  return ::Ifc2x3::IfcLightDistributionCurveEnum::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcLightIntensityDistribution::setLightDistributionCurve(const ::Ifc2x3::IfcLightDistributionCurveEnum::Value& v) { set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcLightDistributionCurveEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcLightDistributionData > Ifc2x3::IfcLightIntensityDistribution::DistributionData() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcLightDistributionData>(es); }
void Ifc2x3::IfcLightIntensityDistribution::setDistributionData(const std::vector< ::Ifc2x3::IfcLightDistributionData >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcLightIntensityDistribution::declaration() const { return *((IfcParse::entity*)IFC2X3_types[445]); }
const IfcParse::entity& Ifc2x3::IfcLightIntensityDistribution::Class() { return *((IfcParse::entity*)IFC2X3_types[445]); }
// Ifc2x3::IfcLightIntensityDistribution::IfcLightIntensityDistribution(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcLightIntensityDistribution::IfcLightIntensityDistribution(::Ifc2x3::IfcLightDistributionCurveEnum::Value v1_LightDistributionCurve, std::vector< ::Ifc2x3::IfcLightDistributionData > v2_DistributionData) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcLightDistributionCurveEnum::Class(),(size_t)v1_LightDistributionCurve)));set_attribute_value(1, (v2_DistributionData)->generalize());; populate_derived(); }

// Function implementations for IfcLightSource
std::optional< std::string > Ifc2x3::IfcLightSource::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcLightSource::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
::Ifc2x3::IfcColourRgb Ifc2x3::IfcLightSource::LightColour() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcColourRgb>(); }
void Ifc2x3::IfcLightSource::setLightColour(const ::Ifc2x3::IfcColourRgb& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< double > Ifc2x3::IfcLightSource::AmbientIntensity() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcLightSource::setAmbientIntensity(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcLightSource::Intensity() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcLightSource::setIntensity(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcLightSource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[446]); }
const IfcParse::entity& Ifc2x3::IfcLightSource::Class() { return *((IfcParse::entity*)IFC2X3_types[446]); }
// Ifc2x3::IfcLightSource::IfcLightSource(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcLightSource::IfcLightSource(std::optional< std::string > v1_Name, ::Ifc2x3::IfcColourRgb v2_LightColour, std::optional< double > v3_AmbientIntensity, std::optional< double > v4_Intensity) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_LightColour)); if (v3_AmbientIntensity) {set_attribute_value(2, (*v3_AmbientIntensity)); } if (v4_Intensity) {set_attribute_value(3, (*v4_Intensity)); }; populate_derived(); }

// Function implementations for IfcLightSourceAmbient


// const IfcParse::entity& Ifc2x3::IfcLightSourceAmbient::declaration() const { return *((IfcParse::entity*)IFC2X3_types[447]); }
const IfcParse::entity& Ifc2x3::IfcLightSourceAmbient::Class() { return *((IfcParse::entity*)IFC2X3_types[447]); }
// Ifc2x3::IfcLightSourceAmbient::IfcLightSourceAmbient(const std::weak_ptr<InstanceData>& e) : IfcLightSource(e) { }
// Ifc2x3::IfcLightSourceAmbient::IfcLightSourceAmbient(std::optional< std::string > v1_Name, ::Ifc2x3::IfcColourRgb v2_LightColour, std::optional< double > v3_AmbientIntensity, std::optional< double > v4_Intensity) : IfcLightSource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_LightColour)); if (v3_AmbientIntensity) {set_attribute_value(2, (*v3_AmbientIntensity)); } if (v4_Intensity) {set_attribute_value(3, (*v4_Intensity)); }; populate_derived(); }

// Function implementations for IfcLightSourceDirectional
::Ifc2x3::IfcDirection Ifc2x3::IfcLightSourceDirectional::Orientation() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcLightSourceDirectional::setOrientation(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcLightSourceDirectional::declaration() const { return *((IfcParse::entity*)IFC2X3_types[448]); }
const IfcParse::entity& Ifc2x3::IfcLightSourceDirectional::Class() { return *((IfcParse::entity*)IFC2X3_types[448]); }
// Ifc2x3::IfcLightSourceDirectional::IfcLightSourceDirectional(const std::weak_ptr<InstanceData>& e) : IfcLightSource(e) { }
// Ifc2x3::IfcLightSourceDirectional::IfcLightSourceDirectional(std::optional< std::string > v1_Name, ::Ifc2x3::IfcColourRgb v2_LightColour, std::optional< double > v3_AmbientIntensity, std::optional< double > v4_Intensity, ::Ifc2x3::IfcDirection v5_Orientation) : IfcLightSource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_LightColour)); if (v3_AmbientIntensity) {set_attribute_value(2, (*v3_AmbientIntensity)); } if (v4_Intensity) {set_attribute_value(3, (*v4_Intensity)); }set_attribute_value(4, (v5_Orientation));; populate_derived(); }

// Function implementations for IfcLightSourceGoniometric
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcLightSourceGoniometric::Position() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcLightSourceGoniometric::setPosition(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcColourRgb Ifc2x3::IfcLightSourceGoniometric::ColourAppearance() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcColourRgb{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcColourRgb>(); }
void Ifc2x3::IfcLightSourceGoniometric::setColourAppearance(const ::Ifc2x3::IfcColourRgb& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcLightSourceGoniometric::ColourTemperature() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcLightSourceGoniometric::setColourTemperature(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
double Ifc2x3::IfcLightSourceGoniometric::LuminousFlux() const {  double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcLightSourceGoniometric::setLuminousFlux(const double& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcLightEmissionSourceEnum::Value Ifc2x3::IfcLightSourceGoniometric::LightEmissionSource() const {  return ::Ifc2x3::IfcLightEmissionSourceEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcLightSourceGoniometric::setLightEmissionSource(const ::Ifc2x3::IfcLightEmissionSourceEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcLightEmissionSourceEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcLightDistributionDataSourceSelect Ifc2x3::IfcLightSourceGoniometric::LightDistributionDataSource() const {  return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcLightDistributionDataSourceSelect>(); }
void Ifc2x3::IfcLightSourceGoniometric::setLightDistributionDataSource(const ::Ifc2x3::IfcLightDistributionDataSourceSelect& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcLightSourceGoniometric::declaration() const { return *((IfcParse::entity*)IFC2X3_types[449]); }
const IfcParse::entity& Ifc2x3::IfcLightSourceGoniometric::Class() { return *((IfcParse::entity*)IFC2X3_types[449]); }
// Ifc2x3::IfcLightSourceGoniometric::IfcLightSourceGoniometric(const std::weak_ptr<InstanceData>& e) : IfcLightSource(e) { }
// Ifc2x3::IfcLightSourceGoniometric::IfcLightSourceGoniometric(std::optional< std::string > v1_Name, ::Ifc2x3::IfcColourRgb v2_LightColour, std::optional< double > v3_AmbientIntensity, std::optional< double > v4_Intensity, ::Ifc2x3::IfcAxis2Placement3D v5_Position, ::Ifc2x3::IfcColourRgb v6_ColourAppearance, double v7_ColourTemperature, double v8_LuminousFlux, ::Ifc2x3::IfcLightEmissionSourceEnum::Value v9_LightEmissionSource, ::Ifc2x3::IfcLightDistributionDataSourceSelect v10_LightDistributionDataSource) : IfcLightSource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_LightColour)); if (v3_AmbientIntensity) {set_attribute_value(2, (*v3_AmbientIntensity)); } if (v4_Intensity) {set_attribute_value(3, (*v4_Intensity)); }set_attribute_value(4, (v5_Position)); if (v6_ColourAppearance) {set_attribute_value(5, (*v6_ColourAppearance)); }set_attribute_value(6, (v7_ColourTemperature));set_attribute_value(7, (v8_LuminousFlux));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcLightEmissionSourceEnum::Class(),(size_t)v9_LightEmissionSource)));set_attribute_value(9, (v10_LightDistributionDataSource));; populate_derived(); }

// Function implementations for IfcLightSourcePositional
::Ifc2x3::IfcCartesianPoint Ifc2x3::IfcLightSourcePositional::Position() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcCartesianPoint>(); }
void Ifc2x3::IfcLightSourcePositional::setPosition(const ::Ifc2x3::IfcCartesianPoint& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcLightSourcePositional::Radius() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcLightSourcePositional::setRadius(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcLightSourcePositional::ConstantAttenuation() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcLightSourcePositional::setConstantAttenuation(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
double Ifc2x3::IfcLightSourcePositional::DistanceAttenuation() const {  double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcLightSourcePositional::setDistanceAttenuation(const double& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
double Ifc2x3::IfcLightSourcePositional::QuadricAttenuation() const {  double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcLightSourcePositional::setQuadricAttenuation(const double& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcLightSourcePositional::declaration() const { return *((IfcParse::entity*)IFC2X3_types[450]); }
const IfcParse::entity& Ifc2x3::IfcLightSourcePositional::Class() { return *((IfcParse::entity*)IFC2X3_types[450]); }
// Ifc2x3::IfcLightSourcePositional::IfcLightSourcePositional(const std::weak_ptr<InstanceData>& e) : IfcLightSource(e) { }
// Ifc2x3::IfcLightSourcePositional::IfcLightSourcePositional(std::optional< std::string > v1_Name, ::Ifc2x3::IfcColourRgb v2_LightColour, std::optional< double > v3_AmbientIntensity, std::optional< double > v4_Intensity, ::Ifc2x3::IfcCartesianPoint v5_Position, double v6_Radius, double v7_ConstantAttenuation, double v8_DistanceAttenuation, double v9_QuadricAttenuation) : IfcLightSource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_LightColour)); if (v3_AmbientIntensity) {set_attribute_value(2, (*v3_AmbientIntensity)); } if (v4_Intensity) {set_attribute_value(3, (*v4_Intensity)); }set_attribute_value(4, (v5_Position));set_attribute_value(5, (v6_Radius));set_attribute_value(6, (v7_ConstantAttenuation));set_attribute_value(7, (v8_DistanceAttenuation));set_attribute_value(8, (v9_QuadricAttenuation));; populate_derived(); }

// Function implementations for IfcLightSourceSpot
::Ifc2x3::IfcDirection Ifc2x3::IfcLightSourceSpot::Orientation() const {  return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcLightSourceSpot::setOrientation(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
std::optional< double > Ifc2x3::IfcLightSourceSpot::ConcentrationExponent() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcLightSourceSpot::setConcentrationExponent(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
double Ifc2x3::IfcLightSourceSpot::SpreadAngle() const {  double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcLightSourceSpot::setSpreadAngle(const double& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
double Ifc2x3::IfcLightSourceSpot::BeamWidthAngle() const {  double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcLightSourceSpot::setBeamWidthAngle(const double& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }


// const IfcParse::entity& Ifc2x3::IfcLightSourceSpot::declaration() const { return *((IfcParse::entity*)IFC2X3_types[451]); }
const IfcParse::entity& Ifc2x3::IfcLightSourceSpot::Class() { return *((IfcParse::entity*)IFC2X3_types[451]); }
// Ifc2x3::IfcLightSourceSpot::IfcLightSourceSpot(const std::weak_ptr<InstanceData>& e) : IfcLightSourcePositional(e) { }
// Ifc2x3::IfcLightSourceSpot::IfcLightSourceSpot(std::optional< std::string > v1_Name, ::Ifc2x3::IfcColourRgb v2_LightColour, std::optional< double > v3_AmbientIntensity, std::optional< double > v4_Intensity, ::Ifc2x3::IfcCartesianPoint v5_Position, double v6_Radius, double v7_ConstantAttenuation, double v8_DistanceAttenuation, double v9_QuadricAttenuation, ::Ifc2x3::IfcDirection v10_Orientation, std::optional< double > v11_ConcentrationExponent, double v12_SpreadAngle, double v13_BeamWidthAngle) : IfcLightSourcePositional(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(13))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_LightColour)); if (v3_AmbientIntensity) {set_attribute_value(2, (*v3_AmbientIntensity)); } if (v4_Intensity) {set_attribute_value(3, (*v4_Intensity)); }set_attribute_value(4, (v5_Position));set_attribute_value(5, (v6_Radius));set_attribute_value(6, (v7_ConstantAttenuation));set_attribute_value(7, (v8_DistanceAttenuation));set_attribute_value(8, (v9_QuadricAttenuation));set_attribute_value(9, (v10_Orientation)); if (v11_ConcentrationExponent) {set_attribute_value(10, (*v11_ConcentrationExponent)); }set_attribute_value(11, (v12_SpreadAngle));set_attribute_value(12, (v13_BeamWidthAngle));; populate_derived(); }

// Function implementations for IfcLine
::Ifc2x3::IfcCartesianPoint Ifc2x3::IfcLine::Pnt() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCartesianPoint>(); }
void Ifc2x3::IfcLine::setPnt(const ::Ifc2x3::IfcCartesianPoint& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcVector Ifc2x3::IfcLine::Dir() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcVector>(); }
void Ifc2x3::IfcLine::setDir(const ::Ifc2x3::IfcVector& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcLine::declaration() const { return *((IfcParse::entity*)IFC2X3_types[452]); }
const IfcParse::entity& Ifc2x3::IfcLine::Class() { return *((IfcParse::entity*)IFC2X3_types[452]); }
// Ifc2x3::IfcLine::IfcLine(const std::weak_ptr<InstanceData>& e) : IfcCurve(e) { }
// Ifc2x3::IfcLine::IfcLine(::Ifc2x3::IfcCartesianPoint v1_Pnt, ::Ifc2x3::IfcVector v2_Dir) : IfcCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Pnt));set_attribute_value(1, (v2_Dir));; populate_derived(); }

// Function implementations for IfcLinearDimension


// const IfcParse::entity& Ifc2x3::IfcLinearDimension::declaration() const { return *((IfcParse::entity*)IFC2X3_types[453]); }
const IfcParse::entity& Ifc2x3::IfcLinearDimension::Class() { return *((IfcParse::entity*)IFC2X3_types[453]); }
// Ifc2x3::IfcLinearDimension::IfcLinearDimension(const std::weak_ptr<InstanceData>& e) : IfcDimensionCurveDirectedCallout(e) { }
// Ifc2x3::IfcLinearDimension::IfcLinearDimension(std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > v1_Contents) : IfcDimensionCurveDirectedCallout(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Contents)->generalize());; populate_derived(); }

// Function implementations for IfcLocalPlacement
::Ifc2x3::IfcObjectPlacement Ifc2x3::IfcLocalPlacement::PlacementRelTo() const { if(get_attribute_value(0).isNull()) { return ::Ifc2x3::IfcObjectPlacement{}; } return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcObjectPlacement>(); }
void Ifc2x3::IfcLocalPlacement::setPlacementRelTo(const ::Ifc2x3::IfcObjectPlacement& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcLocalPlacement::RelativePlacement() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcLocalPlacement::setRelativePlacement(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcLocalPlacement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[459]); }
const IfcParse::entity& Ifc2x3::IfcLocalPlacement::Class() { return *((IfcParse::entity*)IFC2X3_types[459]); }
// Ifc2x3::IfcLocalPlacement::IfcLocalPlacement(const std::weak_ptr<InstanceData>& e) : IfcObjectPlacement(e) { }
// Ifc2x3::IfcLocalPlacement::IfcLocalPlacement(::Ifc2x3::IfcObjectPlacement v1_PlacementRelTo, ::Ifc2x3::IfcAxis2Placement v2_RelativePlacement) : IfcObjectPlacement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) {  if (v1_PlacementRelTo) {set_attribute_value(0, (*v1_PlacementRelTo)); }set_attribute_value(1, (v2_RelativePlacement));; populate_derived(); }

// Function implementations for IfcLocalTime
int Ifc2x3::IfcLocalTime::HourComponent() const {  int v = get_attribute_value(0); return v; }
void Ifc2x3::IfcLocalTime::setHourComponent(const int& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< int > Ifc2x3::IfcLocalTime::MinuteComponent() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } int v = get_attribute_value(1); return v; }
void Ifc2x3::IfcLocalTime::setMinuteComponent(const std::optional< int >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcLocalTime::SecondComponent() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcLocalTime::setSecondComponent(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
::Ifc2x3::IfcCoordinatedUniversalTimeOffset Ifc2x3::IfcLocalTime::Zone() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcCoordinatedUniversalTimeOffset{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcCoordinatedUniversalTimeOffset>(); }
void Ifc2x3::IfcLocalTime::setZone(const ::Ifc2x3::IfcCoordinatedUniversalTimeOffset& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
std::optional< int > Ifc2x3::IfcLocalTime::DaylightSavingOffset() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } int v = get_attribute_value(4); return v; }
void Ifc2x3::IfcLocalTime::setDaylightSavingOffset(const std::optional< int >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcLocalTime::declaration() const { return *((IfcParse::entity*)IFC2X3_types[460]); }
const IfcParse::entity& Ifc2x3::IfcLocalTime::Class() { return *((IfcParse::entity*)IFC2X3_types[460]); }
// Ifc2x3::IfcLocalTime::IfcLocalTime(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcLocalTime::IfcLocalTime(int v1_HourComponent, std::optional< int > v2_MinuteComponent, std::optional< double > v3_SecondComponent, ::Ifc2x3::IfcCoordinatedUniversalTimeOffset v4_Zone, std::optional< int > v5_DaylightSavingOffset) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_HourComponent)); if (v2_MinuteComponent) {set_attribute_value(1, (*v2_MinuteComponent)); } if (v3_SecondComponent) {set_attribute_value(2, (*v3_SecondComponent)); } if (v4_Zone) {set_attribute_value(3, (*v4_Zone)); } if (v5_DaylightSavingOffset) {set_attribute_value(4, (*v5_DaylightSavingOffset)); }; populate_derived(); }

// Function implementations for IfcLoop


// const IfcParse::entity& Ifc2x3::IfcLoop::declaration() const { return *((IfcParse::entity*)IFC2X3_types[463]); }
const IfcParse::entity& Ifc2x3::IfcLoop::Class() { return *((IfcParse::entity*)IFC2X3_types[463]); }
// Ifc2x3::IfcLoop::IfcLoop(const std::weak_ptr<InstanceData>& e) : IfcTopologicalRepresentationItem(e) { }
// Ifc2x3::IfcLoop::IfcLoop() : IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcManifoldSolidBrep
::Ifc2x3::IfcClosedShell Ifc2x3::IfcManifoldSolidBrep::Outer() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcClosedShell>(); }
void Ifc2x3::IfcManifoldSolidBrep::setOuter(const ::Ifc2x3::IfcClosedShell& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcManifoldSolidBrep::declaration() const { return *((IfcParse::entity*)IFC2X3_types[470]); }
const IfcParse::entity& Ifc2x3::IfcManifoldSolidBrep::Class() { return *((IfcParse::entity*)IFC2X3_types[470]); }
// Ifc2x3::IfcManifoldSolidBrep::IfcManifoldSolidBrep(const std::weak_ptr<InstanceData>& e) : IfcSolidModel(e) { }
// Ifc2x3::IfcManifoldSolidBrep::IfcManifoldSolidBrep(::Ifc2x3::IfcClosedShell v1_Outer) : IfcSolidModel(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Outer));; populate_derived(); }

// Function implementations for IfcMappedItem
::Ifc2x3::IfcRepresentationMap Ifc2x3::IfcMappedItem::MappingSource() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcRepresentationMap>(); }
void Ifc2x3::IfcMappedItem::setMappingSource(const ::Ifc2x3::IfcRepresentationMap& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcCartesianTransformationOperator Ifc2x3::IfcMappedItem::MappingTarget() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCartesianTransformationOperator>(); }
void Ifc2x3::IfcMappedItem::setMappingTarget(const ::Ifc2x3::IfcCartesianTransformationOperator& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcMappedItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[471]); }
const IfcParse::entity& Ifc2x3::IfcMappedItem::Class() { return *((IfcParse::entity*)IFC2X3_types[471]); }
// Ifc2x3::IfcMappedItem::IfcMappedItem(const std::weak_ptr<InstanceData>& e) : IfcRepresentationItem(e) { }
// Ifc2x3::IfcMappedItem::IfcMappedItem(::Ifc2x3::IfcRepresentationMap v1_MappingSource, ::Ifc2x3::IfcCartesianTransformationOperator v2_MappingTarget) : IfcRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_MappingSource));set_attribute_value(1, (v2_MappingTarget));; populate_derived(); }

// Function implementations for IfcMaterial
std::string Ifc2x3::IfcMaterial::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcMaterial::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }

std::vector<::Ifc2x3::IfcMaterialDefinitionRepresentation> Ifc2x3::IfcMaterial::HasRepresentation() const { return cast_vector<IfcMaterialDefinitionRepresentation>(file()->getInverse(data()->id(), IFC2X3_types[478], 3)); }
std::vector<::Ifc2x3::IfcMaterialClassificationRelationship> Ifc2x3::IfcMaterial::ClassifiedAs() const { return cast_vector<IfcMaterialClassificationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[477], 1)); }

// const IfcParse::entity& Ifc2x3::IfcMaterial::declaration() const { return *((IfcParse::entity*)IFC2X3_types[476]); }
const IfcParse::entity& Ifc2x3::IfcMaterial::Class() { return *((IfcParse::entity*)IFC2X3_types[476]); }
// Ifc2x3::IfcMaterial::IfcMaterial(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMaterial::IfcMaterial(std::string v1_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcMaterialClassificationRelationship
std::vector< ::Ifc2x3::IfcClassificationNotationSelect > Ifc2x3::IfcMaterialClassificationRelationship::MaterialClassifications() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcClassificationNotationSelect>(es); }
void Ifc2x3::IfcMaterialClassificationRelationship::setMaterialClassifications(const std::vector< ::Ifc2x3::IfcClassificationNotationSelect >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcMaterial Ifc2x3::IfcMaterialClassificationRelationship::ClassifiedMaterial() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcMaterial>(); }
void Ifc2x3::IfcMaterialClassificationRelationship::setClassifiedMaterial(const ::Ifc2x3::IfcMaterial& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcMaterialClassificationRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[477]); }
const IfcParse::entity& Ifc2x3::IfcMaterialClassificationRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[477]); }
// Ifc2x3::IfcMaterialClassificationRelationship::IfcMaterialClassificationRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMaterialClassificationRelationship::IfcMaterialClassificationRelationship(std::vector< ::Ifc2x3::IfcClassificationNotationSelect > v1_MaterialClassifications, ::Ifc2x3::IfcMaterial v2_ClassifiedMaterial) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_MaterialClassifications)->generalize());set_attribute_value(1, (v2_ClassifiedMaterial));; populate_derived(); }

// Function implementations for IfcMaterialDefinitionRepresentation
::Ifc2x3::IfcMaterial Ifc2x3::IfcMaterialDefinitionRepresentation::RepresentedMaterial() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcMaterial>(); }
void Ifc2x3::IfcMaterialDefinitionRepresentation::setRepresentedMaterial(const ::Ifc2x3::IfcMaterial& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcMaterialDefinitionRepresentation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[478]); }
const IfcParse::entity& Ifc2x3::IfcMaterialDefinitionRepresentation::Class() { return *((IfcParse::entity*)IFC2X3_types[478]); }
// Ifc2x3::IfcMaterialDefinitionRepresentation::IfcMaterialDefinitionRepresentation(const std::weak_ptr<InstanceData>& e) : IfcProductRepresentation(e) { }
// Ifc2x3::IfcMaterialDefinitionRepresentation::IfcMaterialDefinitionRepresentation(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcRepresentation > v3_Representations, ::Ifc2x3::IfcMaterial v4_RepresentedMaterial) : IfcProductRepresentation(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_Representations)->generalize());set_attribute_value(3, (v4_RepresentedMaterial));; populate_derived(); }

// Function implementations for IfcMaterialLayer
::Ifc2x3::IfcMaterial Ifc2x3::IfcMaterialLayer::Material() const { if(get_attribute_value(0).isNull()) { return ::Ifc2x3::IfcMaterial{}; } return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcMaterial>(); }
void Ifc2x3::IfcMaterialLayer::setMaterial(const ::Ifc2x3::IfcMaterial& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcMaterialLayer::LayerThickness() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcMaterialLayer::setLayerThickness(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< boost::logic::tribool > Ifc2x3::IfcMaterialLayer::IsVentilated() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } boost::logic::tribool v = get_attribute_value(2); return v; }
void Ifc2x3::IfcMaterialLayer::setIsVentilated(const std::optional< boost::logic::tribool >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }

std::vector<::Ifc2x3::IfcMaterialLayerSet> Ifc2x3::IfcMaterialLayer::ToMaterialLayerSet() const { return cast_vector<IfcMaterialLayerSet>(file()->getInverse(data()->id(), IFC2X3_types[480], 0)); }

// const IfcParse::entity& Ifc2x3::IfcMaterialLayer::declaration() const { return *((IfcParse::entity*)IFC2X3_types[479]); }
const IfcParse::entity& Ifc2x3::IfcMaterialLayer::Class() { return *((IfcParse::entity*)IFC2X3_types[479]); }
// Ifc2x3::IfcMaterialLayer::IfcMaterialLayer(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMaterialLayer::IfcMaterialLayer(::Ifc2x3::IfcMaterial v1_Material, double v2_LayerThickness, std::optional< boost::logic::tribool > v3_IsVentilated) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Material) {set_attribute_value(0, (*v1_Material)); }set_attribute_value(1, (v2_LayerThickness)); if (v3_IsVentilated) {set_attribute_value(2, (*v3_IsVentilated)); }; populate_derived(); }

// Function implementations for IfcMaterialLayerSet
std::vector< ::Ifc2x3::IfcMaterialLayer > Ifc2x3::IfcMaterialLayerSet::MaterialLayers() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcMaterialLayer>(es); }
void Ifc2x3::IfcMaterialLayerSet::setMaterialLayers(const std::vector< ::Ifc2x3::IfcMaterialLayer >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcMaterialLayerSet::LayerSetName() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcMaterialLayerSet::setLayerSetName(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }


// const IfcParse::entity& Ifc2x3::IfcMaterialLayerSet::declaration() const { return *((IfcParse::entity*)IFC2X3_types[480]); }
const IfcParse::entity& Ifc2x3::IfcMaterialLayerSet::Class() { return *((IfcParse::entity*)IFC2X3_types[480]); }
// Ifc2x3::IfcMaterialLayerSet::IfcMaterialLayerSet(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMaterialLayerSet::IfcMaterialLayerSet(std::vector< ::Ifc2x3::IfcMaterialLayer > v1_MaterialLayers, std::optional< std::string > v2_LayerSetName) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_MaterialLayers)->generalize()); if (v2_LayerSetName) {set_attribute_value(1, (*v2_LayerSetName)); }; populate_derived(); }

// Function implementations for IfcMaterialLayerSetUsage
::Ifc2x3::IfcMaterialLayerSet Ifc2x3::IfcMaterialLayerSetUsage::ForLayerSet() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcMaterialLayerSet>(); }
void Ifc2x3::IfcMaterialLayerSetUsage::setForLayerSet(const ::Ifc2x3::IfcMaterialLayerSet& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcLayerSetDirectionEnum::Value Ifc2x3::IfcMaterialLayerSetUsage::LayerSetDirection() const {  return ::Ifc2x3::IfcLayerSetDirectionEnum::FromString(get_attribute_value(1)); }
void Ifc2x3::IfcMaterialLayerSetUsage::setLayerSetDirection(const ::Ifc2x3::IfcLayerSetDirectionEnum::Value& v) { set_attribute_value(1, EnumerationReference(&::Ifc2x3::IfcLayerSetDirectionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcDirectionSenseEnum::Value Ifc2x3::IfcMaterialLayerSetUsage::DirectionSense() const {  return ::Ifc2x3::IfcDirectionSenseEnum::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcMaterialLayerSetUsage::setDirectionSense(const ::Ifc2x3::IfcDirectionSenseEnum::Value& v) { set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcDirectionSenseEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcMaterialLayerSetUsage::OffsetFromReferenceLine() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcMaterialLayerSetUsage::setOffsetFromReferenceLine(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcMaterialLayerSetUsage::declaration() const { return *((IfcParse::entity*)IFC2X3_types[481]); }
const IfcParse::entity& Ifc2x3::IfcMaterialLayerSetUsage::Class() { return *((IfcParse::entity*)IFC2X3_types[481]); }
// Ifc2x3::IfcMaterialLayerSetUsage::IfcMaterialLayerSetUsage(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMaterialLayerSetUsage::IfcMaterialLayerSetUsage(::Ifc2x3::IfcMaterialLayerSet v1_ForLayerSet, ::Ifc2x3::IfcLayerSetDirectionEnum::Value v2_LayerSetDirection, ::Ifc2x3::IfcDirectionSenseEnum::Value v3_DirectionSense, double v4_OffsetFromReferenceLine) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ForLayerSet));set_attribute_value(1, (EnumerationReference(&::Ifc2x3::IfcLayerSetDirectionEnum::Class(),(size_t)v2_LayerSetDirection)));set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcDirectionSenseEnum::Class(),(size_t)v3_DirectionSense)));set_attribute_value(3, (v4_OffsetFromReferenceLine));; populate_derived(); }

// Function implementations for IfcMaterialList
std::vector< ::Ifc2x3::IfcMaterial > Ifc2x3::IfcMaterialList::Materials() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcMaterial>(es); }
void Ifc2x3::IfcMaterialList::setMaterials(const std::vector< ::Ifc2x3::IfcMaterial >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcMaterialList::declaration() const { return *((IfcParse::entity*)IFC2X3_types[482]); }
const IfcParse::entity& Ifc2x3::IfcMaterialList::Class() { return *((IfcParse::entity*)IFC2X3_types[482]); }
// Ifc2x3::IfcMaterialList::IfcMaterialList(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMaterialList::IfcMaterialList(std::vector< ::Ifc2x3::IfcMaterial > v1_Materials) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Materials)->generalize());; populate_derived(); }

// Function implementations for IfcMaterialProperties
::Ifc2x3::IfcMaterial Ifc2x3::IfcMaterialProperties::Material() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcMaterial>(); }
void Ifc2x3::IfcMaterialProperties::setMaterial(const ::Ifc2x3::IfcMaterial& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[483]); }
const IfcParse::entity& Ifc2x3::IfcMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[483]); }
// Ifc2x3::IfcMaterialProperties::IfcMaterialProperties(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMaterialProperties::IfcMaterialProperties(::Ifc2x3::IfcMaterial v1_Material) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Material));; populate_derived(); }

// Function implementations for IfcMeasureWithUnit
::Ifc2x3::IfcValue Ifc2x3::IfcMeasureWithUnit::ValueComponent() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcValue>(); }
void Ifc2x3::IfcMeasureWithUnit::setValueComponent(const ::Ifc2x3::IfcValue& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcUnit Ifc2x3::IfcMeasureWithUnit::UnitComponent() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcMeasureWithUnit::setUnitComponent(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcMeasureWithUnit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[486]); }
const IfcParse::entity& Ifc2x3::IfcMeasureWithUnit::Class() { return *((IfcParse::entity*)IFC2X3_types[486]); }
// Ifc2x3::IfcMeasureWithUnit::IfcMeasureWithUnit(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMeasureWithUnit::IfcMeasureWithUnit(::Ifc2x3::IfcValue v1_ValueComponent, ::Ifc2x3::IfcUnit v2_UnitComponent) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_ValueComponent));set_attribute_value(1, (v2_UnitComponent));; populate_derived(); }

// Function implementations for IfcMechanicalConcreteMaterialProperties
std::optional< double > Ifc2x3::IfcMechanicalConcreteMaterialProperties::CompressiveStrength() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcMechanicalConcreteMaterialProperties::setCompressiveStrength(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcMechanicalConcreteMaterialProperties::MaxAggregateSize() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcMechanicalConcreteMaterialProperties::setMaxAggregateSize(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< std::string > Ifc2x3::IfcMechanicalConcreteMaterialProperties::AdmixturesDescription() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcMechanicalConcreteMaterialProperties::setAdmixturesDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< std::string > Ifc2x3::IfcMechanicalConcreteMaterialProperties::Workability() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::string v = get_attribute_value(9); return v; }
void Ifc2x3::IfcMechanicalConcreteMaterialProperties::setWorkability(const std::optional< std::string >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcMechanicalConcreteMaterialProperties::ProtectivePoreRatio() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcMechanicalConcreteMaterialProperties::setProtectivePoreRatio(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< std::string > Ifc2x3::IfcMechanicalConcreteMaterialProperties::WaterImpermeability() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } std::string v = get_attribute_value(11); return v; }
void Ifc2x3::IfcMechanicalConcreteMaterialProperties::setWaterImpermeability(const std::optional< std::string >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }


// const IfcParse::entity& Ifc2x3::IfcMechanicalConcreteMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[487]); }
const IfcParse::entity& Ifc2x3::IfcMechanicalConcreteMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[487]); }
// Ifc2x3::IfcMechanicalConcreteMaterialProperties::IfcMechanicalConcreteMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMechanicalMaterialProperties(e) { }
// Ifc2x3::IfcMechanicalConcreteMaterialProperties::IfcMechanicalConcreteMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_DynamicViscosity, std::optional< double > v3_YoungModulus, std::optional< double > v4_ShearModulus, std::optional< double > v5_PoissonRatio, std::optional< double > v6_ThermalExpansionCoefficient, std::optional< double > v7_CompressiveStrength, std::optional< double > v8_MaxAggregateSize, std::optional< std::string > v9_AdmixturesDescription, std::optional< std::string > v10_Workability, std::optional< double > v11_ProtectivePoreRatio, std::optional< std::string > v12_WaterImpermeability) : IfcMechanicalMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (v1_Material)); if (v2_DynamicViscosity) {set_attribute_value(1, (*v2_DynamicViscosity)); } if (v3_YoungModulus) {set_attribute_value(2, (*v3_YoungModulus)); } if (v4_ShearModulus) {set_attribute_value(3, (*v4_ShearModulus)); } if (v5_PoissonRatio) {set_attribute_value(4, (*v5_PoissonRatio)); } if (v6_ThermalExpansionCoefficient) {set_attribute_value(5, (*v6_ThermalExpansionCoefficient)); } if (v7_CompressiveStrength) {set_attribute_value(6, (*v7_CompressiveStrength)); } if (v8_MaxAggregateSize) {set_attribute_value(7, (*v8_MaxAggregateSize)); } if (v9_AdmixturesDescription) {set_attribute_value(8, (*v9_AdmixturesDescription)); } if (v10_Workability) {set_attribute_value(9, (*v10_Workability)); } if (v11_ProtectivePoreRatio) {set_attribute_value(10, (*v11_ProtectivePoreRatio)); } if (v12_WaterImpermeability) {set_attribute_value(11, (*v12_WaterImpermeability)); }; populate_derived(); }

// Function implementations for IfcMechanicalFastener
std::optional< double > Ifc2x3::IfcMechanicalFastener::NominalDiameter() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcMechanicalFastener::setNominalDiameter(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcMechanicalFastener::NominalLength() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcMechanicalFastener::setNominalLength(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcMechanicalFastener::declaration() const { return *((IfcParse::entity*)IFC2X3_types[488]); }
const IfcParse::entity& Ifc2x3::IfcMechanicalFastener::Class() { return *((IfcParse::entity*)IFC2X3_types[488]); }
// Ifc2x3::IfcMechanicalFastener::IfcMechanicalFastener(const std::weak_ptr<InstanceData>& e) : IfcFastener(e) { }
// Ifc2x3::IfcMechanicalFastener::IfcMechanicalFastener(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< double > v9_NominalDiameter, std::optional< double > v10_NominalLength) : IfcFastener(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_NominalDiameter) {set_attribute_value(8, (*v9_NominalDiameter)); } if (v10_NominalLength) {set_attribute_value(9, (*v10_NominalLength)); }; populate_derived(); }

// Function implementations for IfcMechanicalFastenerType


// const IfcParse::entity& Ifc2x3::IfcMechanicalFastenerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[489]); }
const IfcParse::entity& Ifc2x3::IfcMechanicalFastenerType::Class() { return *((IfcParse::entity*)IFC2X3_types[489]); }
// Ifc2x3::IfcMechanicalFastenerType::IfcMechanicalFastenerType(const std::weak_ptr<InstanceData>& e) : IfcFastenerType(e) { }
// Ifc2x3::IfcMechanicalFastenerType::IfcMechanicalFastenerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcFastenerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcMechanicalMaterialProperties
std::optional< double > Ifc2x3::IfcMechanicalMaterialProperties::DynamicViscosity() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcMechanicalMaterialProperties::setDynamicViscosity(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcMechanicalMaterialProperties::YoungModulus() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcMechanicalMaterialProperties::setYoungModulus(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcMechanicalMaterialProperties::ShearModulus() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcMechanicalMaterialProperties::setShearModulus(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcMechanicalMaterialProperties::PoissonRatio() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcMechanicalMaterialProperties::setPoissonRatio(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcMechanicalMaterialProperties::ThermalExpansionCoefficient() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcMechanicalMaterialProperties::setThermalExpansionCoefficient(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }


// const IfcParse::entity& Ifc2x3::IfcMechanicalMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[490]); }
const IfcParse::entity& Ifc2x3::IfcMechanicalMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[490]); }
// Ifc2x3::IfcMechanicalMaterialProperties::IfcMechanicalMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcMechanicalMaterialProperties::IfcMechanicalMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_DynamicViscosity, std::optional< double > v3_YoungModulus, std::optional< double > v4_ShearModulus, std::optional< double > v5_PoissonRatio, std::optional< double > v6_ThermalExpansionCoefficient) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_Material)); if (v2_DynamicViscosity) {set_attribute_value(1, (*v2_DynamicViscosity)); } if (v3_YoungModulus) {set_attribute_value(2, (*v3_YoungModulus)); } if (v4_ShearModulus) {set_attribute_value(3, (*v4_ShearModulus)); } if (v5_PoissonRatio) {set_attribute_value(4, (*v5_PoissonRatio)); } if (v6_ThermalExpansionCoefficient) {set_attribute_value(5, (*v6_ThermalExpansionCoefficient)); }; populate_derived(); }

// Function implementations for IfcMechanicalSteelMaterialProperties
std::optional< double > Ifc2x3::IfcMechanicalSteelMaterialProperties::YieldStress() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcMechanicalSteelMaterialProperties::setYieldStress(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcMechanicalSteelMaterialProperties::UltimateStress() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcMechanicalSteelMaterialProperties::setUltimateStress(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcMechanicalSteelMaterialProperties::UltimateStrain() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcMechanicalSteelMaterialProperties::setUltimateStrain(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcMechanicalSteelMaterialProperties::HardeningModule() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcMechanicalSteelMaterialProperties::setHardeningModule(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcMechanicalSteelMaterialProperties::ProportionalStress() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcMechanicalSteelMaterialProperties::setProportionalStress(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcMechanicalSteelMaterialProperties::PlasticStrain() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcMechanicalSteelMaterialProperties::setPlasticStrain(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< std::vector< ::Ifc2x3::IfcRelaxation > > Ifc2x3::IfcMechanicalSteelMaterialProperties::Relaxations() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(12); return cast_vector<::Ifc2x3::IfcRelaxation>(es); }
void Ifc2x3::IfcMechanicalSteelMaterialProperties::setRelaxations(const std::optional< std::vector< ::Ifc2x3::IfcRelaxation > >& v) { if (v) {set_attribute_value(12, cast_vector<express::Base>(*v));} else {unset_attribute_value(12);} }


// const IfcParse::entity& Ifc2x3::IfcMechanicalSteelMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[491]); }
const IfcParse::entity& Ifc2x3::IfcMechanicalSteelMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[491]); }
// Ifc2x3::IfcMechanicalSteelMaterialProperties::IfcMechanicalSteelMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMechanicalMaterialProperties(e) { }
// Ifc2x3::IfcMechanicalSteelMaterialProperties::IfcMechanicalSteelMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_DynamicViscosity, std::optional< double > v3_YoungModulus, std::optional< double > v4_ShearModulus, std::optional< double > v5_PoissonRatio, std::optional< double > v6_ThermalExpansionCoefficient, std::optional< double > v7_YieldStress, std::optional< double > v8_UltimateStress, std::optional< double > v9_UltimateStrain, std::optional< double > v10_HardeningModule, std::optional< double > v11_ProportionalStress, std::optional< double > v12_PlasticStrain, std::optional< std::vector< ::Ifc2x3::IfcRelaxation > > v13_Relaxations) : IfcMechanicalMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(13))) { set_attribute_value(0, (v1_Material)); if (v2_DynamicViscosity) {set_attribute_value(1, (*v2_DynamicViscosity)); } if (v3_YoungModulus) {set_attribute_value(2, (*v3_YoungModulus)); } if (v4_ShearModulus) {set_attribute_value(3, (*v4_ShearModulus)); } if (v5_PoissonRatio) {set_attribute_value(4, (*v5_PoissonRatio)); } if (v6_ThermalExpansionCoefficient) {set_attribute_value(5, (*v6_ThermalExpansionCoefficient)); } if (v7_YieldStress) {set_attribute_value(6, (*v7_YieldStress)); } if (v8_UltimateStress) {set_attribute_value(7, (*v8_UltimateStress)); } if (v9_UltimateStrain) {set_attribute_value(8, (*v9_UltimateStrain)); } if (v10_HardeningModule) {set_attribute_value(9, (*v10_HardeningModule)); } if (v11_ProportionalStress) {set_attribute_value(10, (*v11_ProportionalStress)); } if (v12_PlasticStrain) {set_attribute_value(11, (*v12_PlasticStrain)); } if (v13_Relaxations) {set_attribute_value(12, (*v13_Relaxations)->generalize()); }; populate_derived(); }

// Function implementations for IfcMember


// const IfcParse::entity& Ifc2x3::IfcMember::declaration() const { return *((IfcParse::entity*)IFC2X3_types[492]); }
const IfcParse::entity& Ifc2x3::IfcMember::Class() { return *((IfcParse::entity*)IFC2X3_types[492]); }
// Ifc2x3::IfcMember::IfcMember(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcMember::IfcMember(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcMemberType
::Ifc2x3::IfcMemberTypeEnum::Value Ifc2x3::IfcMemberType::PredefinedType() const {  return ::Ifc2x3::IfcMemberTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcMemberType::setPredefinedType(const ::Ifc2x3::IfcMemberTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcMemberTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcMemberType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[493]); }
const IfcParse::entity& Ifc2x3::IfcMemberType::Class() { return *((IfcParse::entity*)IFC2X3_types[493]); }
// Ifc2x3::IfcMemberType::IfcMemberType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcMemberType::IfcMemberType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcMemberTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcMemberTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcMetric
::Ifc2x3::IfcBenchmarkEnum::Value Ifc2x3::IfcMetric::Benchmark() const {  return ::Ifc2x3::IfcBenchmarkEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcMetric::setBenchmark(const ::Ifc2x3::IfcBenchmarkEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcBenchmarkEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }
std::optional< std::string > Ifc2x3::IfcMetric::ValueSource() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcMetric::setValueSource(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
::Ifc2x3::IfcMetricValueSelect Ifc2x3::IfcMetric::DataValue() const {  return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcMetricValueSelect>(); }
void Ifc2x3::IfcMetric::setDataValue(const ::Ifc2x3::IfcMetricValueSelect& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcMetric::declaration() const { return *((IfcParse::entity*)IFC2X3_types[495]); }
const IfcParse::entity& Ifc2x3::IfcMetric::Class() { return *((IfcParse::entity*)IFC2X3_types[495]); }
// Ifc2x3::IfcMetric::IfcMetric(const std::weak_ptr<InstanceData>& e) : IfcConstraint(e) { }
// Ifc2x3::IfcMetric::IfcMetric(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcConstraintEnum::Value v3_ConstraintGrade, std::optional< std::string > v4_ConstraintSource, ::Ifc2x3::IfcActorSelect v5_CreatingActor, ::Ifc2x3::IfcDateTimeSelect v6_CreationTime, std::optional< std::string > v7_UserDefinedGrade, ::Ifc2x3::IfcBenchmarkEnum::Value v8_Benchmark, std::optional< std::string > v9_ValueSource, ::Ifc2x3::IfcMetricValueSelect v10_DataValue) : IfcConstraint(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcConstraintEnum::Class(),(size_t)v3_ConstraintGrade))); if (v4_ConstraintSource) {set_attribute_value(3, (*v4_ConstraintSource)); } if (v5_CreatingActor) {set_attribute_value(4, (*v5_CreatingActor)); } if (v6_CreationTime) {set_attribute_value(5, (*v6_CreationTime)); } if (v7_UserDefinedGrade) {set_attribute_value(6, (*v7_UserDefinedGrade)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcBenchmarkEnum::Class(),(size_t)v8_Benchmark))); if (v9_ValueSource) {set_attribute_value(8, (*v9_ValueSource)); }set_attribute_value(9, (v10_DataValue));; populate_derived(); }

// Function implementations for IfcMonetaryUnit
::Ifc2x3::IfcCurrencyEnum::Value Ifc2x3::IfcMonetaryUnit::Currency() const {  return ::Ifc2x3::IfcCurrencyEnum::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcMonetaryUnit::setCurrency(const ::Ifc2x3::IfcCurrencyEnum::Value& v) { set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcCurrencyEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcMonetaryUnit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[506]); }
const IfcParse::entity& Ifc2x3::IfcMonetaryUnit::Class() { return *((IfcParse::entity*)IFC2X3_types[506]); }
// Ifc2x3::IfcMonetaryUnit::IfcMonetaryUnit(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcMonetaryUnit::IfcMonetaryUnit(::Ifc2x3::IfcCurrencyEnum::Value v1_Currency) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcCurrencyEnum::Class(),(size_t)v1_Currency)));; populate_derived(); }

// Function implementations for IfcMotorConnectionType
::Ifc2x3::IfcMotorConnectionTypeEnum::Value Ifc2x3::IfcMotorConnectionType::PredefinedType() const {  return ::Ifc2x3::IfcMotorConnectionTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcMotorConnectionType::setPredefinedType(const ::Ifc2x3::IfcMotorConnectionTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcMotorConnectionTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcMotorConnectionType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[508]); }
const IfcParse::entity& Ifc2x3::IfcMotorConnectionType::Class() { return *((IfcParse::entity*)IFC2X3_types[508]); }
// Ifc2x3::IfcMotorConnectionType::IfcMotorConnectionType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcMotorConnectionType::IfcMotorConnectionType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcMotorConnectionTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcMotorConnectionTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcMove
::Ifc2x3::IfcSpatialStructureElement Ifc2x3::IfcMove::MoveFrom() const {  return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcSpatialStructureElement>(); }
void Ifc2x3::IfcMove::setMoveFrom(const ::Ifc2x3::IfcSpatialStructureElement& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
::Ifc2x3::IfcSpatialStructureElement Ifc2x3::IfcMove::MoveTo() const {  return ((express::Base)(get_attribute_value(11))).as<::Ifc2x3::IfcSpatialStructureElement>(); }
void Ifc2x3::IfcMove::setMoveTo(const ::Ifc2x3::IfcSpatialStructureElement& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcMove::PunchList() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(12); return v; }
void Ifc2x3::IfcMove::setPunchList(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }


// const IfcParse::entity& Ifc2x3::IfcMove::declaration() const { return *((IfcParse::entity*)IFC2X3_types[510]); }
const IfcParse::entity& Ifc2x3::IfcMove::Class() { return *((IfcParse::entity*)IFC2X3_types[510]); }
// Ifc2x3::IfcMove::IfcMove(const std::weak_ptr<InstanceData>& e) : IfcTask(e) { }
// Ifc2x3::IfcMove::IfcMove(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_TaskId, std::optional< std::string > v7_Status, std::optional< std::string > v8_WorkMethod, bool v9_IsMilestone, std::optional< int > v10_Priority, ::Ifc2x3::IfcSpatialStructureElement v11_MoveFrom, ::Ifc2x3::IfcSpatialStructureElement v12_MoveTo, std::optional< std::vector< std::string > /*[1:?]*/ > v13_PunchList) : IfcTask(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(13))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_TaskId)); if (v7_Status) {set_attribute_value(6, (*v7_Status)); } if (v8_WorkMethod) {set_attribute_value(7, (*v8_WorkMethod)); }set_attribute_value(8, (v9_IsMilestone)); if (v10_Priority) {set_attribute_value(9, (*v10_Priority)); }set_attribute_value(10, (v11_MoveFrom));set_attribute_value(11, (v12_MoveTo)); if (v13_PunchList) {set_attribute_value(12, (*v13_PunchList)); }; populate_derived(); }

// Function implementations for IfcNamedUnit
::Ifc2x3::IfcDimensionalExponents Ifc2x3::IfcNamedUnit::Dimensions() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcDimensionalExponents>(); }
void Ifc2x3::IfcNamedUnit::setDimensions(const ::Ifc2x3::IfcDimensionalExponents& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcUnitEnum::Value Ifc2x3::IfcNamedUnit::UnitType() const {  return ::Ifc2x3::IfcUnitEnum::FromString(get_attribute_value(1)); }
void Ifc2x3::IfcNamedUnit::setUnitType(const ::Ifc2x3::IfcUnitEnum::Value& v) { set_attribute_value(1, EnumerationReference(&::Ifc2x3::IfcUnitEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcNamedUnit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[511]); }
const IfcParse::entity& Ifc2x3::IfcNamedUnit::Class() { return *((IfcParse::entity*)IFC2X3_types[511]); }
// Ifc2x3::IfcNamedUnit::IfcNamedUnit(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcNamedUnit::IfcNamedUnit(::Ifc2x3::IfcDimensionalExponents v1_Dimensions, ::Ifc2x3::IfcUnitEnum::Value v2_UnitType) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Dimensions));set_attribute_value(1, (EnumerationReference(&::Ifc2x3::IfcUnitEnum::Class(),(size_t)v2_UnitType)));; populate_derived(); }

// Function implementations for IfcObject
std::optional< std::string > Ifc2x3::IfcObject::ObjectType() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcObject::setObjectType(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }

std::vector<::Ifc2x3::IfcRelDefines> Ifc2x3::IfcObject::IsDefinedBy() const { return cast_vector<IfcRelDefines>(file()->getInverse(data()->id(), IFC2X3_types[702], 4)); }

// const IfcParse::entity& Ifc2x3::IfcObject::declaration() const { return *((IfcParse::entity*)IFC2X3_types[515]); }
const IfcParse::entity& Ifc2x3::IfcObject::Class() { return *((IfcParse::entity*)IFC2X3_types[515]); }
// Ifc2x3::IfcObject::IfcObject(const std::weak_ptr<InstanceData>& e) : IfcObjectDefinition(e) { }
// Ifc2x3::IfcObject::IfcObject(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcObjectDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcObjectDefinition

std::vector<::Ifc2x3::IfcRelAssigns> Ifc2x3::IfcObjectDefinition::HasAssignments() const { return cast_vector<IfcRelAssigns>(file()->getInverse(data()->id(), IFC2X3_types[668], 4)); }
std::vector<::Ifc2x3::IfcRelDecomposes> Ifc2x3::IfcObjectDefinition::IsDecomposedBy() const { return cast_vector<IfcRelDecomposes>(file()->getInverse(data()->id(), IFC2X3_types[701], 4)); }
std::vector<::Ifc2x3::IfcRelDecomposes> Ifc2x3::IfcObjectDefinition::Decomposes() const { return cast_vector<IfcRelDecomposes>(file()->getInverse(data()->id(), IFC2X3_types[701], 5)); }
std::vector<::Ifc2x3::IfcRelAssociates> Ifc2x3::IfcObjectDefinition::HasAssociations() const { return cast_vector<IfcRelAssociates>(file()->getInverse(data()->id(), IFC2X3_types[677], 4)); }

// const IfcParse::entity& Ifc2x3::IfcObjectDefinition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[516]); }
const IfcParse::entity& Ifc2x3::IfcObjectDefinition::Class() { return *((IfcParse::entity*)IFC2X3_types[516]); }
// Ifc2x3::IfcObjectDefinition::IfcObjectDefinition(const std::weak_ptr<InstanceData>& e) : IfcRoot(e) { }
// Ifc2x3::IfcObjectDefinition::IfcObjectDefinition(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : IfcRoot(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcObjectPlacement

std::vector<::Ifc2x3::IfcProduct> Ifc2x3::IfcObjectPlacement::PlacesObject() const { return cast_vector<IfcProduct>(file()->getInverse(data()->id(), IFC2X3_types[600], 5)); }
std::vector<::Ifc2x3::IfcLocalPlacement> Ifc2x3::IfcObjectPlacement::ReferencedByPlacements() const { return cast_vector<IfcLocalPlacement>(file()->getInverse(data()->id(), IFC2X3_types[459], 0)); }

// const IfcParse::entity& Ifc2x3::IfcObjectPlacement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[519]); }
const IfcParse::entity& Ifc2x3::IfcObjectPlacement::Class() { return *((IfcParse::entity*)IFC2X3_types[519]); }
// Ifc2x3::IfcObjectPlacement::IfcObjectPlacement(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcObjectPlacement::IfcObjectPlacement() : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcObjective
::Ifc2x3::IfcMetric Ifc2x3::IfcObjective::BenchmarkValues() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcMetric{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcMetric>(); }
void Ifc2x3::IfcObjective::setBenchmarkValues(const ::Ifc2x3::IfcMetric& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcMetric Ifc2x3::IfcObjective::ResultValues() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcMetric{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcMetric>(); }
void Ifc2x3::IfcObjective::setResultValues(const ::Ifc2x3::IfcMetric& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcObjectiveEnum::Value Ifc2x3::IfcObjective::ObjectiveQualifier() const {  return ::Ifc2x3::IfcObjectiveEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcObjective::setObjectiveQualifier(const ::Ifc2x3::IfcObjectiveEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcObjectiveEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }
std::optional< std::string > Ifc2x3::IfcObjective::UserDefinedQualifier() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } std::string v = get_attribute_value(10); return v; }
void Ifc2x3::IfcObjective::setUserDefinedQualifier(const std::optional< std::string >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }


// const IfcParse::entity& Ifc2x3::IfcObjective::declaration() const { return *((IfcParse::entity*)IFC2X3_types[517]); }
const IfcParse::entity& Ifc2x3::IfcObjective::Class() { return *((IfcParse::entity*)IFC2X3_types[517]); }
// Ifc2x3::IfcObjective::IfcObjective(const std::weak_ptr<InstanceData>& e) : IfcConstraint(e) { }
// Ifc2x3::IfcObjective::IfcObjective(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcConstraintEnum::Value v3_ConstraintGrade, std::optional< std::string > v4_ConstraintSource, ::Ifc2x3::IfcActorSelect v5_CreatingActor, ::Ifc2x3::IfcDateTimeSelect v6_CreationTime, std::optional< std::string > v7_UserDefinedGrade, ::Ifc2x3::IfcMetric v8_BenchmarkValues, ::Ifc2x3::IfcMetric v9_ResultValues, ::Ifc2x3::IfcObjectiveEnum::Value v10_ObjectiveQualifier, std::optional< std::string > v11_UserDefinedQualifier) : IfcConstraint(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcConstraintEnum::Class(),(size_t)v3_ConstraintGrade))); if (v4_ConstraintSource) {set_attribute_value(3, (*v4_ConstraintSource)); } if (v5_CreatingActor) {set_attribute_value(4, (*v5_CreatingActor)); } if (v6_CreationTime) {set_attribute_value(5, (*v6_CreationTime)); } if (v7_UserDefinedGrade) {set_attribute_value(6, (*v7_UserDefinedGrade)); } if (v8_BenchmarkValues) {set_attribute_value(7, (*v8_BenchmarkValues)); } if (v9_ResultValues) {set_attribute_value(8, (*v9_ResultValues)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcObjectiveEnum::Class(),(size_t)v10_ObjectiveQualifier))); if (v11_UserDefinedQualifier) {set_attribute_value(10, (*v11_UserDefinedQualifier)); }; populate_derived(); }

// Function implementations for IfcOccupant
::Ifc2x3::IfcOccupantTypeEnum::Value Ifc2x3::IfcOccupant::PredefinedType() const {  return ::Ifc2x3::IfcOccupantTypeEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcOccupant::setPredefinedType(const ::Ifc2x3::IfcOccupantTypeEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcOccupantTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcOccupant::declaration() const { return *((IfcParse::entity*)IFC2X3_types[522]); }
const IfcParse::entity& Ifc2x3::IfcOccupant::Class() { return *((IfcParse::entity*)IFC2X3_types[522]); }
// Ifc2x3::IfcOccupant::IfcOccupant(const std::weak_ptr<InstanceData>& e) : IfcActor(e) { }
// Ifc2x3::IfcOccupant::IfcOccupant(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcActorSelect v6_TheActor, ::Ifc2x3::IfcOccupantTypeEnum::Value v7_PredefinedType) : IfcActor(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_TheActor));set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcOccupantTypeEnum::Class(),(size_t)v7_PredefinedType)));; populate_derived(); }

// Function implementations for IfcOffsetCurve2D
::Ifc2x3::IfcCurve Ifc2x3::IfcOffsetCurve2D::BasisCurve() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcOffsetCurve2D::setBasisCurve(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcOffsetCurve2D::Distance() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcOffsetCurve2D::setDistance(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
boost::logic::tribool Ifc2x3::IfcOffsetCurve2D::SelfIntersect() const {  boost::logic::tribool v = get_attribute_value(2); return v; }
void Ifc2x3::IfcOffsetCurve2D::setSelfIntersect(const boost::logic::tribool& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcOffsetCurve2D::declaration() const { return *((IfcParse::entity*)IFC2X3_types[524]); }
const IfcParse::entity& Ifc2x3::IfcOffsetCurve2D::Class() { return *((IfcParse::entity*)IFC2X3_types[524]); }
// Ifc2x3::IfcOffsetCurve2D::IfcOffsetCurve2D(const std::weak_ptr<InstanceData>& e) : IfcCurve(e) { }
// Ifc2x3::IfcOffsetCurve2D::IfcOffsetCurve2D(::Ifc2x3::IfcCurve v1_BasisCurve, double v2_Distance, boost::logic::tribool v3_SelfIntersect) : IfcCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_BasisCurve));set_attribute_value(1, (v2_Distance));set_attribute_value(2, (v3_SelfIntersect));; populate_derived(); }

// Function implementations for IfcOffsetCurve3D
::Ifc2x3::IfcCurve Ifc2x3::IfcOffsetCurve3D::BasisCurve() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcOffsetCurve3D::setBasisCurve(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcOffsetCurve3D::Distance() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcOffsetCurve3D::setDistance(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
boost::logic::tribool Ifc2x3::IfcOffsetCurve3D::SelfIntersect() const {  boost::logic::tribool v = get_attribute_value(2); return v; }
void Ifc2x3::IfcOffsetCurve3D::setSelfIntersect(const boost::logic::tribool& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcDirection Ifc2x3::IfcOffsetCurve3D::RefDirection() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcOffsetCurve3D::setRefDirection(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcOffsetCurve3D::declaration() const { return *((IfcParse::entity*)IFC2X3_types[525]); }
const IfcParse::entity& Ifc2x3::IfcOffsetCurve3D::Class() { return *((IfcParse::entity*)IFC2X3_types[525]); }
// Ifc2x3::IfcOffsetCurve3D::IfcOffsetCurve3D(const std::weak_ptr<InstanceData>& e) : IfcCurve(e) { }
// Ifc2x3::IfcOffsetCurve3D::IfcOffsetCurve3D(::Ifc2x3::IfcCurve v1_BasisCurve, double v2_Distance, boost::logic::tribool v3_SelfIntersect, ::Ifc2x3::IfcDirection v4_RefDirection) : IfcCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_BasisCurve));set_attribute_value(1, (v2_Distance));set_attribute_value(2, (v3_SelfIntersect));set_attribute_value(3, (v4_RefDirection));; populate_derived(); }

// Function implementations for IfcOneDirectionRepeatFactor
::Ifc2x3::IfcVector Ifc2x3::IfcOneDirectionRepeatFactor::RepeatFactor() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcVector>(); }
void Ifc2x3::IfcOneDirectionRepeatFactor::setRepeatFactor(const ::Ifc2x3::IfcVector& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcOneDirectionRepeatFactor::declaration() const { return *((IfcParse::entity*)IFC2X3_types[526]); }
const IfcParse::entity& Ifc2x3::IfcOneDirectionRepeatFactor::Class() { return *((IfcParse::entity*)IFC2X3_types[526]); }
// Ifc2x3::IfcOneDirectionRepeatFactor::IfcOneDirectionRepeatFactor(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcOneDirectionRepeatFactor::IfcOneDirectionRepeatFactor(::Ifc2x3::IfcVector v1_RepeatFactor) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_RepeatFactor));; populate_derived(); }

// Function implementations for IfcOpenShell


// const IfcParse::entity& Ifc2x3::IfcOpenShell::declaration() const { return *((IfcParse::entity*)IFC2X3_types[528]); }
const IfcParse::entity& Ifc2x3::IfcOpenShell::Class() { return *((IfcParse::entity*)IFC2X3_types[528]); }
// Ifc2x3::IfcOpenShell::IfcOpenShell(const std::weak_ptr<InstanceData>& e) : IfcConnectedFaceSet(e) { }
// Ifc2x3::IfcOpenShell::IfcOpenShell(std::vector< ::Ifc2x3::IfcFace > v1_CfsFaces) : IfcConnectedFaceSet(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_CfsFaces)->generalize());; populate_derived(); }

// Function implementations for IfcOpeningElement

std::vector<::Ifc2x3::IfcRelFillsElement> Ifc2x3::IfcOpeningElement::HasFillings() const { return cast_vector<IfcRelFillsElement>(file()->getInverse(data()->id(), IFC2X3_types[705], 4)); }

// const IfcParse::entity& Ifc2x3::IfcOpeningElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[527]); }
const IfcParse::entity& Ifc2x3::IfcOpeningElement::Class() { return *((IfcParse::entity*)IFC2X3_types[527]); }
// Ifc2x3::IfcOpeningElement::IfcOpeningElement(const std::weak_ptr<InstanceData>& e) : IfcFeatureElementSubtraction(e) { }
// Ifc2x3::IfcOpeningElement::IfcOpeningElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcFeatureElementSubtraction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcOpticalMaterialProperties
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::VisibleTransmittance() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setVisibleTransmittance(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::SolarTransmittance() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setSolarTransmittance(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::ThermalIrTransmittance() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setThermalIrTransmittance(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::ThermalIrEmissivityBack() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setThermalIrEmissivityBack(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::ThermalIrEmissivityFront() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setThermalIrEmissivityFront(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::VisibleReflectanceBack() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setVisibleReflectanceBack(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::VisibleReflectanceFront() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setVisibleReflectanceFront(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::SolarReflectanceFront() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setSolarReflectanceFront(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcOpticalMaterialProperties::SolarReflectanceBack() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcOpticalMaterialProperties::setSolarReflectanceBack(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcOpticalMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[529]); }
const IfcParse::entity& Ifc2x3::IfcOpticalMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[529]); }
// Ifc2x3::IfcOpticalMaterialProperties::IfcOpticalMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcOpticalMaterialProperties::IfcOpticalMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_VisibleTransmittance, std::optional< double > v3_SolarTransmittance, std::optional< double > v4_ThermalIrTransmittance, std::optional< double > v5_ThermalIrEmissivityBack, std::optional< double > v6_ThermalIrEmissivityFront, std::optional< double > v7_VisibleReflectanceBack, std::optional< double > v8_VisibleReflectanceFront, std::optional< double > v9_SolarReflectanceFront, std::optional< double > v10_SolarReflectanceBack) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_Material)); if (v2_VisibleTransmittance) {set_attribute_value(1, (*v2_VisibleTransmittance)); } if (v3_SolarTransmittance) {set_attribute_value(2, (*v3_SolarTransmittance)); } if (v4_ThermalIrTransmittance) {set_attribute_value(3, (*v4_ThermalIrTransmittance)); } if (v5_ThermalIrEmissivityBack) {set_attribute_value(4, (*v5_ThermalIrEmissivityBack)); } if (v6_ThermalIrEmissivityFront) {set_attribute_value(5, (*v6_ThermalIrEmissivityFront)); } if (v7_VisibleReflectanceBack) {set_attribute_value(6, (*v7_VisibleReflectanceBack)); } if (v8_VisibleReflectanceFront) {set_attribute_value(7, (*v8_VisibleReflectanceFront)); } if (v9_SolarReflectanceFront) {set_attribute_value(8, (*v9_SolarReflectanceFront)); } if (v10_SolarReflectanceBack) {set_attribute_value(9, (*v10_SolarReflectanceBack)); }; populate_derived(); }

// Function implementations for IfcOrderAction
std::string Ifc2x3::IfcOrderAction::ActionID() const {  std::string v = get_attribute_value(10); return v; }
void Ifc2x3::IfcOrderAction::setActionID(const std::string& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }


// const IfcParse::entity& Ifc2x3::IfcOrderAction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[530]); }
const IfcParse::entity& Ifc2x3::IfcOrderAction::Class() { return *((IfcParse::entity*)IFC2X3_types[530]); }
// Ifc2x3::IfcOrderAction::IfcOrderAction(const std::weak_ptr<InstanceData>& e) : IfcTask(e) { }
// Ifc2x3::IfcOrderAction::IfcOrderAction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_TaskId, std::optional< std::string > v7_Status, std::optional< std::string > v8_WorkMethod, bool v9_IsMilestone, std::optional< int > v10_Priority, std::string v11_ActionID) : IfcTask(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_TaskId)); if (v7_Status) {set_attribute_value(6, (*v7_Status)); } if (v8_WorkMethod) {set_attribute_value(7, (*v8_WorkMethod)); }set_attribute_value(8, (v9_IsMilestone)); if (v10_Priority) {set_attribute_value(9, (*v10_Priority)); }set_attribute_value(10, (v11_ActionID));; populate_derived(); }

// Function implementations for IfcOrganization
std::optional< std::string > Ifc2x3::IfcOrganization::Id() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcOrganization::setId(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::string Ifc2x3::IfcOrganization::Name() const {  std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcOrganization::setName(const std::string& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcOrganization::Description() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcOrganization::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::vector< ::Ifc2x3::IfcActorRole > > Ifc2x3::IfcOrganization::Roles() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcActorRole>(es); }
void Ifc2x3::IfcOrganization::setRoles(const std::optional< std::vector< ::Ifc2x3::IfcActorRole > >& v) { if (v) {set_attribute_value(3, cast_vector<express::Base>(*v));} else {unset_attribute_value(3);} }
std::optional< std::vector< ::Ifc2x3::IfcAddress > > Ifc2x3::IfcOrganization::Addresses() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcAddress>(es); }
void Ifc2x3::IfcOrganization::setAddresses(const std::optional< std::vector< ::Ifc2x3::IfcAddress > >& v) { if (v) {set_attribute_value(4, cast_vector<express::Base>(*v));} else {unset_attribute_value(4);} }

std::vector<::Ifc2x3::IfcOrganizationRelationship> Ifc2x3::IfcOrganization::IsRelatedBy() const { return cast_vector<IfcOrganizationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[532], 3)); }
std::vector<::Ifc2x3::IfcOrganizationRelationship> Ifc2x3::IfcOrganization::Relates() const { return cast_vector<IfcOrganizationRelationship>(file()->getInverse(data()->id(), IFC2X3_types[532], 2)); }
std::vector<::Ifc2x3::IfcPersonAndOrganization> Ifc2x3::IfcOrganization::Engages() const { return cast_vector<IfcPersonAndOrganization>(file()->getInverse(data()->id(), IFC2X3_types[546], 1)); }

// const IfcParse::entity& Ifc2x3::IfcOrganization::declaration() const { return *((IfcParse::entity*)IFC2X3_types[531]); }
const IfcParse::entity& Ifc2x3::IfcOrganization::Class() { return *((IfcParse::entity*)IFC2X3_types[531]); }
// Ifc2x3::IfcOrganization::IfcOrganization(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcOrganization::IfcOrganization(std::optional< std::string > v1_Id, std::string v2_Name, std::optional< std::string > v3_Description, std::optional< std::vector< ::Ifc2x3::IfcActorRole > > v4_Roles, std::optional< std::vector< ::Ifc2x3::IfcAddress > > v5_Addresses) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_Id) {set_attribute_value(0, (*v1_Id)); }set_attribute_value(1, (v2_Name)); if (v3_Description) {set_attribute_value(2, (*v3_Description)); } if (v4_Roles) {set_attribute_value(3, (*v4_Roles)->generalize()); } if (v5_Addresses) {set_attribute_value(4, (*v5_Addresses)->generalize()); }; populate_derived(); }

// Function implementations for IfcOrganizationRelationship
std::string Ifc2x3::IfcOrganizationRelationship::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcOrganizationRelationship::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcOrganizationRelationship::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcOrganizationRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcOrganization Ifc2x3::IfcOrganizationRelationship::RelatingOrganization() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcOrganization>(); }
void Ifc2x3::IfcOrganizationRelationship::setRelatingOrganization(const ::Ifc2x3::IfcOrganization& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
std::vector< ::Ifc2x3::IfcOrganization > Ifc2x3::IfcOrganizationRelationship::RelatedOrganizations() const {  std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcOrganization>(es); }
void Ifc2x3::IfcOrganizationRelationship::setRelatedOrganizations(const std::vector< ::Ifc2x3::IfcOrganization >& v) { set_attribute_value(3, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcOrganizationRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[532]); }
const IfcParse::entity& Ifc2x3::IfcOrganizationRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[532]); }
// Ifc2x3::IfcOrganizationRelationship::IfcOrganizationRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcOrganizationRelationship::IfcOrganizationRelationship(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcOrganization v3_RelatingOrganization, std::vector< ::Ifc2x3::IfcOrganization > v4_RelatedOrganizations) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_RelatingOrganization));set_attribute_value(3, (v4_RelatedOrganizations)->generalize());; populate_derived(); }

// Function implementations for IfcOrientedEdge
::Ifc2x3::IfcEdge Ifc2x3::IfcOrientedEdge::EdgeElement() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcEdge>(); }
void Ifc2x3::IfcOrientedEdge::setEdgeElement(const ::Ifc2x3::IfcEdge& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
bool Ifc2x3::IfcOrientedEdge::Orientation() const {  bool v = get_attribute_value(3); return v; }
void Ifc2x3::IfcOrientedEdge::setOrientation(const bool& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcOrientedEdge::declaration() const { return *((IfcParse::entity*)IFC2X3_types[534]); }
const IfcParse::entity& Ifc2x3::IfcOrientedEdge::Class() { return *((IfcParse::entity*)IFC2X3_types[534]); }
// Ifc2x3::IfcOrientedEdge::IfcOrientedEdge(const std::weak_ptr<InstanceData>& e) : IfcEdge(e) { }
// Ifc2x3::IfcOrientedEdge::IfcOrientedEdge(::Ifc2x3::IfcEdge v3_EdgeElement, bool v4_Orientation) : IfcEdge(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(2, (v3_EdgeElement));set_attribute_value(3, (v4_Orientation));; populate_derived(); }

// Function implementations for IfcOutletType
::Ifc2x3::IfcOutletTypeEnum::Value Ifc2x3::IfcOutletType::PredefinedType() const {  return ::Ifc2x3::IfcOutletTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcOutletType::setPredefinedType(const ::Ifc2x3::IfcOutletTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcOutletTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcOutletType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[535]); }
const IfcParse::entity& Ifc2x3::IfcOutletType::Class() { return *((IfcParse::entity*)IFC2X3_types[535]); }
// Ifc2x3::IfcOutletType::IfcOutletType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcOutletType::IfcOutletType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcOutletTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcOutletTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcOwnerHistory
::Ifc2x3::IfcPersonAndOrganization Ifc2x3::IfcOwnerHistory::OwningUser() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcPersonAndOrganization>(); }
void Ifc2x3::IfcOwnerHistory::setOwningUser(const ::Ifc2x3::IfcPersonAndOrganization& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcApplication Ifc2x3::IfcOwnerHistory::OwningApplication() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcApplication>(); }
void Ifc2x3::IfcOwnerHistory::setOwningApplication(const ::Ifc2x3::IfcApplication& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< ::Ifc2x3::IfcStateEnum::Value > Ifc2x3::IfcOwnerHistory::State() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcStateEnum::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcOwnerHistory::setState(const std::optional< ::Ifc2x3::IfcStateEnum::Value >& v) { if (v) {set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcStateEnum::Class(), (size_t) *v));} else {unset_attribute_value(2);} }
::Ifc2x3::IfcChangeActionEnum::Value Ifc2x3::IfcOwnerHistory::ChangeAction() const {  return ::Ifc2x3::IfcChangeActionEnum::FromString(get_attribute_value(3)); }
void Ifc2x3::IfcOwnerHistory::setChangeAction(const ::Ifc2x3::IfcChangeActionEnum::Value& v) { set_attribute_value(3, EnumerationReference(&::Ifc2x3::IfcChangeActionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(3); }
std::optional< int > Ifc2x3::IfcOwnerHistory::LastModifiedDate() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } int v = get_attribute_value(4); return v; }
void Ifc2x3::IfcOwnerHistory::setLastModifiedDate(const std::optional< int >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
::Ifc2x3::IfcPersonAndOrganization Ifc2x3::IfcOwnerHistory::LastModifyingUser() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcPersonAndOrganization{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcPersonAndOrganization>(); }
void Ifc2x3::IfcOwnerHistory::setLastModifyingUser(const ::Ifc2x3::IfcPersonAndOrganization& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcApplication Ifc2x3::IfcOwnerHistory::LastModifyingApplication() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcApplication{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcApplication>(); }
void Ifc2x3::IfcOwnerHistory::setLastModifyingApplication(const ::Ifc2x3::IfcApplication& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
int Ifc2x3::IfcOwnerHistory::CreationDate() const {  int v = get_attribute_value(7); return v; }
void Ifc2x3::IfcOwnerHistory::setCreationDate(const int& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcOwnerHistory::declaration() const { return *((IfcParse::entity*)IFC2X3_types[537]); }
const IfcParse::entity& Ifc2x3::IfcOwnerHistory::Class() { return *((IfcParse::entity*)IFC2X3_types[537]); }
// Ifc2x3::IfcOwnerHistory::IfcOwnerHistory(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcOwnerHistory::IfcOwnerHistory(::Ifc2x3::IfcPersonAndOrganization v1_OwningUser, ::Ifc2x3::IfcApplication v2_OwningApplication, std::optional< ::Ifc2x3::IfcStateEnum::Value > v3_State, ::Ifc2x3::IfcChangeActionEnum::Value v4_ChangeAction, std::optional< int > v5_LastModifiedDate, ::Ifc2x3::IfcPersonAndOrganization v6_LastModifyingUser, ::Ifc2x3::IfcApplication v7_LastModifyingApplication, int v8_CreationDate) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_OwningUser));set_attribute_value(1, (v2_OwningApplication)); if (v3_State) {set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcStateEnum::Class(),(size_t)*v3_State))); }set_attribute_value(3, (EnumerationReference(&::Ifc2x3::IfcChangeActionEnum::Class(),(size_t)v4_ChangeAction))); if (v5_LastModifiedDate) {set_attribute_value(4, (*v5_LastModifiedDate)); } if (v6_LastModifyingUser) {set_attribute_value(5, (*v6_LastModifyingUser)); } if (v7_LastModifyingApplication) {set_attribute_value(6, (*v7_LastModifyingApplication)); }set_attribute_value(7, (v8_CreationDate));; populate_derived(); }

// Function implementations for IfcParameterizedProfileDef
::Ifc2x3::IfcAxis2Placement2D Ifc2x3::IfcParameterizedProfileDef::Position() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcAxis2Placement2D>(); }
void Ifc2x3::IfcParameterizedProfileDef::setPosition(const ::Ifc2x3::IfcAxis2Placement2D& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcParameterizedProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[538]); }
const IfcParse::entity& Ifc2x3::IfcParameterizedProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[538]); }
// Ifc2x3::IfcParameterizedProfileDef::IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>& e) : IfcProfileDef(e) { }
// Ifc2x3::IfcParameterizedProfileDef::IfcParameterizedProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position) : IfcProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));; populate_derived(); }

// Function implementations for IfcPath
std::vector< ::Ifc2x3::IfcOrientedEdge > Ifc2x3::IfcPath::EdgeList() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcOrientedEdge>(es); }
void Ifc2x3::IfcPath::setEdgeList(const std::vector< ::Ifc2x3::IfcOrientedEdge >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcPath::declaration() const { return *((IfcParse::entity*)IFC2X3_types[540]); }
const IfcParse::entity& Ifc2x3::IfcPath::Class() { return *((IfcParse::entity*)IFC2X3_types[540]); }
// Ifc2x3::IfcPath::IfcPath(const std::weak_ptr<InstanceData>& e) : IfcTopologicalRepresentationItem(e) { }
// Ifc2x3::IfcPath::IfcPath(std::vector< ::Ifc2x3::IfcOrientedEdge > v1_EdgeList) : IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_EdgeList)->generalize());; populate_derived(); }

// Function implementations for IfcPerformanceHistory
std::string Ifc2x3::IfcPerformanceHistory::LifeCyclePhase() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcPerformanceHistory::setLifeCyclePhase(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcPerformanceHistory::declaration() const { return *((IfcParse::entity*)IFC2X3_types[541]); }
const IfcParse::entity& Ifc2x3::IfcPerformanceHistory::Class() { return *((IfcParse::entity*)IFC2X3_types[541]); }
// Ifc2x3::IfcPerformanceHistory::IfcPerformanceHistory(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcPerformanceHistory::IfcPerformanceHistory(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_LifeCyclePhase) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_LifeCyclePhase));; populate_derived(); }

// Function implementations for IfcPermeableCoveringProperties
::Ifc2x3::IfcPermeableCoveringOperationEnum::Value Ifc2x3::IfcPermeableCoveringProperties::OperationType() const {  return ::Ifc2x3::IfcPermeableCoveringOperationEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcPermeableCoveringProperties::setOperationType(const ::Ifc2x3::IfcPermeableCoveringOperationEnum::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcPermeableCoveringOperationEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcWindowPanelPositionEnum::Value Ifc2x3::IfcPermeableCoveringProperties::PanelPosition() const {  return ::Ifc2x3::IfcWindowPanelPositionEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcPermeableCoveringProperties::setPanelPosition(const ::Ifc2x3::IfcWindowPanelPositionEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcWindowPanelPositionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
std::optional< double > Ifc2x3::IfcPermeableCoveringProperties::FrameDepth() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcPermeableCoveringProperties::setFrameDepth(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcPermeableCoveringProperties::FrameThickness() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcPermeableCoveringProperties::setFrameThickness(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcPermeableCoveringProperties::ShapeAspectStyle() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcShapeAspect{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcPermeableCoveringProperties::setShapeAspectStyle(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcPermeableCoveringProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[543]); }
const IfcParse::entity& Ifc2x3::IfcPermeableCoveringProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[543]); }
// Ifc2x3::IfcPermeableCoveringProperties::IfcPermeableCoveringProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcPermeableCoveringProperties::IfcPermeableCoveringProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcPermeableCoveringOperationEnum::Value v5_OperationType, ::Ifc2x3::IfcWindowPanelPositionEnum::Value v6_PanelPosition, std::optional< double > v7_FrameDepth, std::optional< double > v8_FrameThickness, ::Ifc2x3::IfcShapeAspect v9_ShapeAspectStyle) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcPermeableCoveringOperationEnum::Class(),(size_t)v5_OperationType)));set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcWindowPanelPositionEnum::Class(),(size_t)v6_PanelPosition))); if (v7_FrameDepth) {set_attribute_value(6, (*v7_FrameDepth)); } if (v8_FrameThickness) {set_attribute_value(7, (*v8_FrameThickness)); } if (v9_ShapeAspectStyle) {set_attribute_value(8, (*v9_ShapeAspectStyle)); }; populate_derived(); }

// Function implementations for IfcPermit
std::string Ifc2x3::IfcPermit::PermitID() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcPermit::setPermitID(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcPermit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[544]); }
const IfcParse::entity& Ifc2x3::IfcPermit::Class() { return *((IfcParse::entity*)IFC2X3_types[544]); }
// Ifc2x3::IfcPermit::IfcPermit(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcPermit::IfcPermit(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_PermitID) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_PermitID));; populate_derived(); }

// Function implementations for IfcPerson
std::optional< std::string > Ifc2x3::IfcPerson::Id() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcPerson::setId(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcPerson::FamilyName() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcPerson::setFamilyName(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcPerson::GivenName() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcPerson::setGivenName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcPerson::MiddleNames() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(3); return v; }
void Ifc2x3::IfcPerson::setMiddleNames(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcPerson::PrefixTitles() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(4); return v; }
void Ifc2x3::IfcPerson::setPrefixTitles(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcPerson::SuffixTitles() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(5); return v; }
void Ifc2x3::IfcPerson::setSuffixTitles(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< std::vector< ::Ifc2x3::IfcActorRole > > Ifc2x3::IfcPerson::Roles() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(6); return cast_vector<::Ifc2x3::IfcActorRole>(es); }
void Ifc2x3::IfcPerson::setRoles(const std::optional< std::vector< ::Ifc2x3::IfcActorRole > >& v) { if (v) {set_attribute_value(6, cast_vector<express::Base>(*v));} else {unset_attribute_value(6);} }
std::optional< std::vector< ::Ifc2x3::IfcAddress > > Ifc2x3::IfcPerson::Addresses() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcAddress>(es); }
void Ifc2x3::IfcPerson::setAddresses(const std::optional< std::vector< ::Ifc2x3::IfcAddress > >& v) { if (v) {set_attribute_value(7, cast_vector<express::Base>(*v));} else {unset_attribute_value(7);} }

std::vector<::Ifc2x3::IfcPersonAndOrganization> Ifc2x3::IfcPerson::EngagedIn() const { return cast_vector<IfcPersonAndOrganization>(file()->getInverse(data()->id(), IFC2X3_types[546], 0)); }

// const IfcParse::entity& Ifc2x3::IfcPerson::declaration() const { return *((IfcParse::entity*)IFC2X3_types[545]); }
const IfcParse::entity& Ifc2x3::IfcPerson::Class() { return *((IfcParse::entity*)IFC2X3_types[545]); }
// Ifc2x3::IfcPerson::IfcPerson(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPerson::IfcPerson(std::optional< std::string > v1_Id, std::optional< std::string > v2_FamilyName, std::optional< std::string > v3_GivenName, std::optional< std::vector< std::string > /*[1:?]*/ > v4_MiddleNames, std::optional< std::vector< std::string > /*[1:?]*/ > v5_PrefixTitles, std::optional< std::vector< std::string > /*[1:?]*/ > v6_SuffixTitles, std::optional< std::vector< ::Ifc2x3::IfcActorRole > > v7_Roles, std::optional< std::vector< ::Ifc2x3::IfcAddress > > v8_Addresses) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) {  if (v1_Id) {set_attribute_value(0, (*v1_Id)); } if (v2_FamilyName) {set_attribute_value(1, (*v2_FamilyName)); } if (v3_GivenName) {set_attribute_value(2, (*v3_GivenName)); } if (v4_MiddleNames) {set_attribute_value(3, (*v4_MiddleNames)); } if (v5_PrefixTitles) {set_attribute_value(4, (*v5_PrefixTitles)); } if (v6_SuffixTitles) {set_attribute_value(5, (*v6_SuffixTitles)); } if (v7_Roles) {set_attribute_value(6, (*v7_Roles)->generalize()); } if (v8_Addresses) {set_attribute_value(7, (*v8_Addresses)->generalize()); }; populate_derived(); }

// Function implementations for IfcPersonAndOrganization
::Ifc2x3::IfcPerson Ifc2x3::IfcPersonAndOrganization::ThePerson() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcPerson>(); }
void Ifc2x3::IfcPersonAndOrganization::setThePerson(const ::Ifc2x3::IfcPerson& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcOrganization Ifc2x3::IfcPersonAndOrganization::TheOrganization() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcOrganization>(); }
void Ifc2x3::IfcPersonAndOrganization::setTheOrganization(const ::Ifc2x3::IfcOrganization& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< std::vector< ::Ifc2x3::IfcActorRole > > Ifc2x3::IfcPersonAndOrganization::Roles() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcActorRole>(es); }
void Ifc2x3::IfcPersonAndOrganization::setRoles(const std::optional< std::vector< ::Ifc2x3::IfcActorRole > >& v) { if (v) {set_attribute_value(2, cast_vector<express::Base>(*v));} else {unset_attribute_value(2);} }


// const IfcParse::entity& Ifc2x3::IfcPersonAndOrganization::declaration() const { return *((IfcParse::entity*)IFC2X3_types[546]); }
const IfcParse::entity& Ifc2x3::IfcPersonAndOrganization::Class() { return *((IfcParse::entity*)IFC2X3_types[546]); }
// Ifc2x3::IfcPersonAndOrganization::IfcPersonAndOrganization(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPersonAndOrganization::IfcPersonAndOrganization(::Ifc2x3::IfcPerson v1_ThePerson, ::Ifc2x3::IfcOrganization v2_TheOrganization, std::optional< std::vector< ::Ifc2x3::IfcActorRole > > v3_Roles) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_ThePerson));set_attribute_value(1, (v2_TheOrganization)); if (v3_Roles) {set_attribute_value(2, (*v3_Roles)->generalize()); }; populate_derived(); }

// Function implementations for IfcPhysicalComplexQuantity
std::vector< ::Ifc2x3::IfcPhysicalQuantity > Ifc2x3::IfcPhysicalComplexQuantity::HasQuantities() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcPhysicalQuantity>(es); }
void Ifc2x3::IfcPhysicalComplexQuantity::setHasQuantities(const std::vector< ::Ifc2x3::IfcPhysicalQuantity >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }
std::string Ifc2x3::IfcPhysicalComplexQuantity::Discrimination() const {  std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcPhysicalComplexQuantity::setDiscrimination(const std::string& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
std::optional< std::string > Ifc2x3::IfcPhysicalComplexQuantity::Quality() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcPhysicalComplexQuantity::setQuality(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< std::string > Ifc2x3::IfcPhysicalComplexQuantity::Usage() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcPhysicalComplexQuantity::setUsage(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }


// const IfcParse::entity& Ifc2x3::IfcPhysicalComplexQuantity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[548]); }
const IfcParse::entity& Ifc2x3::IfcPhysicalComplexQuantity::Class() { return *((IfcParse::entity*)IFC2X3_types[548]); }
// Ifc2x3::IfcPhysicalComplexQuantity::IfcPhysicalComplexQuantity(const std::weak_ptr<InstanceData>& e) : IfcPhysicalQuantity(e) { }
// Ifc2x3::IfcPhysicalComplexQuantity::IfcPhysicalComplexQuantity(std::string v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcPhysicalQuantity > v3_HasQuantities, std::string v4_Discrimination, std::optional< std::string > v5_Quality, std::optional< std::string > v6_Usage) : IfcPhysicalQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_HasQuantities)->generalize());set_attribute_value(3, (v4_Discrimination)); if (v5_Quality) {set_attribute_value(4, (*v5_Quality)); } if (v6_Usage) {set_attribute_value(5, (*v6_Usage)); }; populate_derived(); }

// Function implementations for IfcPhysicalQuantity
std::string Ifc2x3::IfcPhysicalQuantity::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcPhysicalQuantity::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcPhysicalQuantity::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcPhysicalQuantity::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }

std::vector<::Ifc2x3::IfcPhysicalComplexQuantity> Ifc2x3::IfcPhysicalQuantity::PartOfComplex() const { return cast_vector<IfcPhysicalComplexQuantity>(file()->getInverse(data()->id(), IFC2X3_types[548], 2)); }

// const IfcParse::entity& Ifc2x3::IfcPhysicalQuantity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[550]); }
const IfcParse::entity& Ifc2x3::IfcPhysicalQuantity::Class() { return *((IfcParse::entity*)IFC2X3_types[550]); }
// Ifc2x3::IfcPhysicalQuantity::IfcPhysicalQuantity(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPhysicalQuantity::IfcPhysicalQuantity(std::string v1_Name, std::optional< std::string > v2_Description) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }; populate_derived(); }

// Function implementations for IfcPhysicalSimpleQuantity
::Ifc2x3::IfcNamedUnit Ifc2x3::IfcPhysicalSimpleQuantity::Unit() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcNamedUnit{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcNamedUnit>(); }
void Ifc2x3::IfcPhysicalSimpleQuantity::setUnit(const ::Ifc2x3::IfcNamedUnit& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcPhysicalSimpleQuantity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[551]); }
const IfcParse::entity& Ifc2x3::IfcPhysicalSimpleQuantity::Class() { return *((IfcParse::entity*)IFC2X3_types[551]); }
// Ifc2x3::IfcPhysicalSimpleQuantity::IfcPhysicalSimpleQuantity(const std::weak_ptr<InstanceData>& e) : IfcPhysicalQuantity(e) { }
// Ifc2x3::IfcPhysicalSimpleQuantity::IfcPhysicalSimpleQuantity(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcNamedUnit v3_Unit) : IfcPhysicalQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }; populate_derived(); }

// Function implementations for IfcPile
::Ifc2x3::IfcPileTypeEnum::Value Ifc2x3::IfcPile::PredefinedType() const {  return ::Ifc2x3::IfcPileTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcPile::setPredefinedType(const ::Ifc2x3::IfcPileTypeEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcPileTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }
std::optional< ::Ifc2x3::IfcPileConstructionEnum::Value > Ifc2x3::IfcPile::ConstructionType() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcPileConstructionEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcPile::setConstructionType(const std::optional< ::Ifc2x3::IfcPileConstructionEnum::Value >& v) { if (v) {set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcPileConstructionEnum::Class(), (size_t) *v));} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcPile::declaration() const { return *((IfcParse::entity*)IFC2X3_types[552]); }
const IfcParse::entity& Ifc2x3::IfcPile::Class() { return *((IfcParse::entity*)IFC2X3_types[552]); }
// Ifc2x3::IfcPile::IfcPile(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcPile::IfcPile(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcPileTypeEnum::Value v9_PredefinedType, std::optional< ::Ifc2x3::IfcPileConstructionEnum::Value > v10_ConstructionType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcPileTypeEnum::Class(),(size_t)v9_PredefinedType))); if (v10_ConstructionType) {set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcPileConstructionEnum::Class(),(size_t)*v10_ConstructionType))); }; populate_derived(); }

// Function implementations for IfcPipeFittingType
::Ifc2x3::IfcPipeFittingTypeEnum::Value Ifc2x3::IfcPipeFittingType::PredefinedType() const {  return ::Ifc2x3::IfcPipeFittingTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcPipeFittingType::setPredefinedType(const ::Ifc2x3::IfcPipeFittingTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcPipeFittingTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcPipeFittingType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[555]); }
const IfcParse::entity& Ifc2x3::IfcPipeFittingType::Class() { return *((IfcParse::entity*)IFC2X3_types[555]); }
// Ifc2x3::IfcPipeFittingType::IfcPipeFittingType(const std::weak_ptr<InstanceData>& e) : IfcFlowFittingType(e) { }
// Ifc2x3::IfcPipeFittingType::IfcPipeFittingType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcPipeFittingTypeEnum::Value v10_PredefinedType) : IfcFlowFittingType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcPipeFittingTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcPipeSegmentType
::Ifc2x3::IfcPipeSegmentTypeEnum::Value Ifc2x3::IfcPipeSegmentType::PredefinedType() const {  return ::Ifc2x3::IfcPipeSegmentTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcPipeSegmentType::setPredefinedType(const ::Ifc2x3::IfcPipeSegmentTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcPipeSegmentTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcPipeSegmentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[557]); }
const IfcParse::entity& Ifc2x3::IfcPipeSegmentType::Class() { return *((IfcParse::entity*)IFC2X3_types[557]); }
// Ifc2x3::IfcPipeSegmentType::IfcPipeSegmentType(const std::weak_ptr<InstanceData>& e) : IfcFlowSegmentType(e) { }
// Ifc2x3::IfcPipeSegmentType::IfcPipeSegmentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcPipeSegmentTypeEnum::Value v10_PredefinedType) : IfcFlowSegmentType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcPipeSegmentTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcPixelTexture
int Ifc2x3::IfcPixelTexture::Width() const {  int v = get_attribute_value(4); return v; }
void Ifc2x3::IfcPixelTexture::setWidth(const int& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
int Ifc2x3::IfcPixelTexture::Height() const {  int v = get_attribute_value(5); return v; }
void Ifc2x3::IfcPixelTexture::setHeight(const int& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
int Ifc2x3::IfcPixelTexture::ColourComponents() const {  int v = get_attribute_value(6); return v; }
void Ifc2x3::IfcPixelTexture::setColourComponents(const int& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::vector< boost::dynamic_bitset<> > /*[1:?]*/ Ifc2x3::IfcPixelTexture::Pixel() const {  std::vector< boost::dynamic_bitset<> > /*[1:?]*/ v = get_attribute_value(7); return v; }
void Ifc2x3::IfcPixelTexture::setPixel(const std::vector< boost::dynamic_bitset<> > /*[1:?]*/& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcPixelTexture::declaration() const { return *((IfcParse::entity*)IFC2X3_types[559]); }
const IfcParse::entity& Ifc2x3::IfcPixelTexture::Class() { return *((IfcParse::entity*)IFC2X3_types[559]); }
// Ifc2x3::IfcPixelTexture::IfcPixelTexture(const std::weak_ptr<InstanceData>& e) : IfcSurfaceTexture(e) { }
// Ifc2x3::IfcPixelTexture::IfcPixelTexture(bool v1_RepeatS, bool v2_RepeatT, ::Ifc2x3::IfcSurfaceTextureEnum::Value v3_TextureType, ::Ifc2x3::IfcCartesianTransformationOperator2D v4_TextureTransform, int v5_Width, int v6_Height, int v7_ColourComponents, std::vector< boost::dynamic_bitset<> > /*[1:?]*/ v8_Pixel) : IfcSurfaceTexture(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_RepeatS));set_attribute_value(1, (v2_RepeatT));set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcSurfaceTextureEnum::Class(),(size_t)v3_TextureType))); if (v4_TextureTransform) {set_attribute_value(3, (*v4_TextureTransform)); }set_attribute_value(4, (v5_Width));set_attribute_value(5, (v6_Height));set_attribute_value(6, (v7_ColourComponents));set_attribute_value(7, (v8_Pixel));; populate_derived(); }

// Function implementations for IfcPlacement
::Ifc2x3::IfcCartesianPoint Ifc2x3::IfcPlacement::Location() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCartesianPoint>(); }
void Ifc2x3::IfcPlacement::setLocation(const ::Ifc2x3::IfcCartesianPoint& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcPlacement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[560]); }
const IfcParse::entity& Ifc2x3::IfcPlacement::Class() { return *((IfcParse::entity*)IFC2X3_types[560]); }
// Ifc2x3::IfcPlacement::IfcPlacement(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcPlacement::IfcPlacement(::Ifc2x3::IfcCartesianPoint v1_Location) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Location));; populate_derived(); }

// Function implementations for IfcPlanarBox
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcPlanarBox::Placement() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcPlanarBox::setPlacement(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcPlanarBox::declaration() const { return *((IfcParse::entity*)IFC2X3_types[561]); }
const IfcParse::entity& Ifc2x3::IfcPlanarBox::Class() { return *((IfcParse::entity*)IFC2X3_types[561]); }
// Ifc2x3::IfcPlanarBox::IfcPlanarBox(const std::weak_ptr<InstanceData>& e) : IfcPlanarExtent(e) { }
// Ifc2x3::IfcPlanarBox::IfcPlanarBox(double v1_SizeInX, double v2_SizeInY, ::Ifc2x3::IfcAxis2Placement v3_Placement) : IfcPlanarExtent(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_SizeInX));set_attribute_value(1, (v2_SizeInY));set_attribute_value(2, (v3_Placement));; populate_derived(); }

// Function implementations for IfcPlanarExtent
double Ifc2x3::IfcPlanarExtent::SizeInX() const {  double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcPlanarExtent::setSizeInX(const double& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcPlanarExtent::SizeInY() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcPlanarExtent::setSizeInY(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcPlanarExtent::declaration() const { return *((IfcParse::entity*)IFC2X3_types[562]); }
const IfcParse::entity& Ifc2x3::IfcPlanarExtent::Class() { return *((IfcParse::entity*)IFC2X3_types[562]); }
// Ifc2x3::IfcPlanarExtent::IfcPlanarExtent(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcPlanarExtent::IfcPlanarExtent(double v1_SizeInX, double v2_SizeInY) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_SizeInX));set_attribute_value(1, (v2_SizeInY));; populate_derived(); }

// Function implementations for IfcPlane


// const IfcParse::entity& Ifc2x3::IfcPlane::declaration() const { return *((IfcParse::entity*)IFC2X3_types[564]); }
const IfcParse::entity& Ifc2x3::IfcPlane::Class() { return *((IfcParse::entity*)IFC2X3_types[564]); }
// Ifc2x3::IfcPlane::IfcPlane(const std::weak_ptr<InstanceData>& e) : IfcElementarySurface(e) { }
// Ifc2x3::IfcPlane::IfcPlane(::Ifc2x3::IfcAxis2Placement3D v1_Position) : IfcElementarySurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Position));; populate_derived(); }

// Function implementations for IfcPlate


// const IfcParse::entity& Ifc2x3::IfcPlate::declaration() const { return *((IfcParse::entity*)IFC2X3_types[566]); }
const IfcParse::entity& Ifc2x3::IfcPlate::Class() { return *((IfcParse::entity*)IFC2X3_types[566]); }
// Ifc2x3::IfcPlate::IfcPlate(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcPlate::IfcPlate(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcPlateType
::Ifc2x3::IfcPlateTypeEnum::Value Ifc2x3::IfcPlateType::PredefinedType() const {  return ::Ifc2x3::IfcPlateTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcPlateType::setPredefinedType(const ::Ifc2x3::IfcPlateTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcPlateTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcPlateType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[567]); }
const IfcParse::entity& Ifc2x3::IfcPlateType::Class() { return *((IfcParse::entity*)IFC2X3_types[567]); }
// Ifc2x3::IfcPlateType::IfcPlateType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcPlateType::IfcPlateType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcPlateTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcPlateTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcPoint


// const IfcParse::entity& Ifc2x3::IfcPoint::declaration() const { return *((IfcParse::entity*)IFC2X3_types[569]); }
const IfcParse::entity& Ifc2x3::IfcPoint::Class() { return *((IfcParse::entity*)IFC2X3_types[569]); }
// Ifc2x3::IfcPoint::IfcPoint(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcPoint::IfcPoint() : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcPointOnCurve
::Ifc2x3::IfcCurve Ifc2x3::IfcPointOnCurve::BasisCurve() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcPointOnCurve::setBasisCurve(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcPointOnCurve::PointParameter() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcPointOnCurve::setPointParameter(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcPointOnCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[570]); }
const IfcParse::entity& Ifc2x3::IfcPointOnCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[570]); }
// Ifc2x3::IfcPointOnCurve::IfcPointOnCurve(const std::weak_ptr<InstanceData>& e) : IfcPoint(e) { }
// Ifc2x3::IfcPointOnCurve::IfcPointOnCurve(::Ifc2x3::IfcCurve v1_BasisCurve, double v2_PointParameter) : IfcPoint(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_BasisCurve));set_attribute_value(1, (v2_PointParameter));; populate_derived(); }

// Function implementations for IfcPointOnSurface
::Ifc2x3::IfcSurface Ifc2x3::IfcPointOnSurface::BasisSurface() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcSurface>(); }
void Ifc2x3::IfcPointOnSurface::setBasisSurface(const ::Ifc2x3::IfcSurface& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcPointOnSurface::PointParameterU() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcPointOnSurface::setPointParameterU(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcPointOnSurface::PointParameterV() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcPointOnSurface::setPointParameterV(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcPointOnSurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[571]); }
const IfcParse::entity& Ifc2x3::IfcPointOnSurface::Class() { return *((IfcParse::entity*)IFC2X3_types[571]); }
// Ifc2x3::IfcPointOnSurface::IfcPointOnSurface(const std::weak_ptr<InstanceData>& e) : IfcPoint(e) { }
// Ifc2x3::IfcPointOnSurface::IfcPointOnSurface(::Ifc2x3::IfcSurface v1_BasisSurface, double v2_PointParameterU, double v3_PointParameterV) : IfcPoint(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_BasisSurface));set_attribute_value(1, (v2_PointParameterU));set_attribute_value(2, (v3_PointParameterV));; populate_derived(); }

// Function implementations for IfcPolyLoop
std::vector< ::Ifc2x3::IfcCartesianPoint > Ifc2x3::IfcPolyLoop::Polygon() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcCartesianPoint>(es); }
void Ifc2x3::IfcPolyLoop::setPolygon(const std::vector< ::Ifc2x3::IfcCartesianPoint >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcPolyLoop::declaration() const { return *((IfcParse::entity*)IFC2X3_types[575]); }
const IfcParse::entity& Ifc2x3::IfcPolyLoop::Class() { return *((IfcParse::entity*)IFC2X3_types[575]); }
// Ifc2x3::IfcPolyLoop::IfcPolyLoop(const std::weak_ptr<InstanceData>& e) : IfcLoop(e) { }
// Ifc2x3::IfcPolyLoop::IfcPolyLoop(std::vector< ::Ifc2x3::IfcCartesianPoint > v1_Polygon) : IfcLoop(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Polygon)->generalize());; populate_derived(); }

// Function implementations for IfcPolygonalBoundedHalfSpace
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcPolygonalBoundedHalfSpace::Position() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcPolygonalBoundedHalfSpace::setPosition(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcBoundedCurve Ifc2x3::IfcPolygonalBoundedHalfSpace::PolygonalBoundary() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcBoundedCurve>(); }
void Ifc2x3::IfcPolygonalBoundedHalfSpace::setPolygonalBoundary(const ::Ifc2x3::IfcBoundedCurve& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcPolygonalBoundedHalfSpace::declaration() const { return *((IfcParse::entity*)IFC2X3_types[573]); }
const IfcParse::entity& Ifc2x3::IfcPolygonalBoundedHalfSpace::Class() { return *((IfcParse::entity*)IFC2X3_types[573]); }
// Ifc2x3::IfcPolygonalBoundedHalfSpace::IfcPolygonalBoundedHalfSpace(const std::weak_ptr<InstanceData>& e) : IfcHalfSpaceSolid(e) { }
// Ifc2x3::IfcPolygonalBoundedHalfSpace::IfcPolygonalBoundedHalfSpace(::Ifc2x3::IfcSurface v1_BaseSurface, bool v2_AgreementFlag, ::Ifc2x3::IfcAxis2Placement3D v3_Position, ::Ifc2x3::IfcBoundedCurve v4_PolygonalBoundary) : IfcHalfSpaceSolid(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_BaseSurface));set_attribute_value(1, (v2_AgreementFlag));set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_PolygonalBoundary));; populate_derived(); }

// Function implementations for IfcPolyline
std::vector< ::Ifc2x3::IfcCartesianPoint > Ifc2x3::IfcPolyline::Points() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcCartesianPoint>(es); }
void Ifc2x3::IfcPolyline::setPoints(const std::vector< ::Ifc2x3::IfcCartesianPoint >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcPolyline::declaration() const { return *((IfcParse::entity*)IFC2X3_types[574]); }
const IfcParse::entity& Ifc2x3::IfcPolyline::Class() { return *((IfcParse::entity*)IFC2X3_types[574]); }
// Ifc2x3::IfcPolyline::IfcPolyline(const std::weak_ptr<InstanceData>& e) : IfcBoundedCurve(e) { }
// Ifc2x3::IfcPolyline::IfcPolyline(std::vector< ::Ifc2x3::IfcCartesianPoint > v1_Points) : IfcBoundedCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Points)->generalize());; populate_derived(); }

// Function implementations for IfcPort

std::vector<::Ifc2x3::IfcRelConnectsPortToElement> Ifc2x3::IfcPort::ContainedIn() const { return cast_vector<IfcRelConnectsPortToElement>(file()->getInverse(data()->id(), IFC2X3_types[692], 4)); }
std::vector<::Ifc2x3::IfcRelConnectsPorts> Ifc2x3::IfcPort::ConnectedFrom() const { return cast_vector<IfcRelConnectsPorts>(file()->getInverse(data()->id(), IFC2X3_types[691], 5)); }
std::vector<::Ifc2x3::IfcRelConnectsPorts> Ifc2x3::IfcPort::ConnectedTo() const { return cast_vector<IfcRelConnectsPorts>(file()->getInverse(data()->id(), IFC2X3_types[691], 4)); }

// const IfcParse::entity& Ifc2x3::IfcPort::declaration() const { return *((IfcParse::entity*)IFC2X3_types[576]); }
const IfcParse::entity& Ifc2x3::IfcPort::Class() { return *((IfcParse::entity*)IFC2X3_types[576]); }
// Ifc2x3::IfcPort::IfcPort(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcPort::IfcPort(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }; populate_derived(); }

// Function implementations for IfcPostalAddress
std::optional< std::string > Ifc2x3::IfcPostalAddress::InternalLocation() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcPostalAddress::setInternalLocation(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcPostalAddress::AddressLines() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(4); return v; }
void Ifc2x3::IfcPostalAddress::setAddressLines(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< std::string > Ifc2x3::IfcPostalAddress::PostalBox() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcPostalAddress::setPostalBox(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< std::string > Ifc2x3::IfcPostalAddress::Town() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcPostalAddress::setTown(const std::optional< std::string >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< std::string > Ifc2x3::IfcPostalAddress::Region() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcPostalAddress::setRegion(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< std::string > Ifc2x3::IfcPostalAddress::PostalCode() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcPostalAddress::setPostalCode(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< std::string > Ifc2x3::IfcPostalAddress::Country() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::string v = get_attribute_value(9); return v; }
void Ifc2x3::IfcPostalAddress::setCountry(const std::optional< std::string >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcPostalAddress::declaration() const { return *((IfcParse::entity*)IFC2X3_types[580]); }
const IfcParse::entity& Ifc2x3::IfcPostalAddress::Class() { return *((IfcParse::entity*)IFC2X3_types[580]); }
// Ifc2x3::IfcPostalAddress::IfcPostalAddress(const std::weak_ptr<InstanceData>& e) : IfcAddress(e) { }
// Ifc2x3::IfcPostalAddress::IfcPostalAddress(std::optional< ::Ifc2x3::IfcAddressTypeEnum::Value > v1_Purpose, std::optional< std::string > v2_Description, std::optional< std::string > v3_UserDefinedPurpose, std::optional< std::string > v4_InternalLocation, std::optional< std::vector< std::string > /*[1:?]*/ > v5_AddressLines, std::optional< std::string > v6_PostalBox, std::optional< std::string > v7_Town, std::optional< std::string > v8_Region, std::optional< std::string > v9_PostalCode, std::optional< std::string > v10_Country) : IfcAddress(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) {  if (v1_Purpose) {set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcAddressTypeEnum::Class(),(size_t)*v1_Purpose))); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_UserDefinedPurpose) {set_attribute_value(2, (*v3_UserDefinedPurpose)); } if (v4_InternalLocation) {set_attribute_value(3, (*v4_InternalLocation)); } if (v5_AddressLines) {set_attribute_value(4, (*v5_AddressLines)); } if (v6_PostalBox) {set_attribute_value(5, (*v6_PostalBox)); } if (v7_Town) {set_attribute_value(6, (*v7_Town)); } if (v8_Region) {set_attribute_value(7, (*v8_Region)); } if (v9_PostalCode) {set_attribute_value(8, (*v9_PostalCode)); } if (v10_Country) {set_attribute_value(9, (*v10_Country)); }; populate_derived(); }

// Function implementations for IfcPreDefinedColour


// const IfcParse::entity& Ifc2x3::IfcPreDefinedColour::declaration() const { return *((IfcParse::entity*)IFC2X3_types[582]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedColour::Class() { return *((IfcParse::entity*)IFC2X3_types[582]); }
// Ifc2x3::IfcPreDefinedColour::IfcPreDefinedColour(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedItem(e) { }
// Ifc2x3::IfcPreDefinedColour::IfcPreDefinedColour(std::string v1_Name) : IfcPreDefinedItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPreDefinedCurveFont


// const IfcParse::entity& Ifc2x3::IfcPreDefinedCurveFont::declaration() const { return *((IfcParse::entity*)IFC2X3_types[583]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedCurveFont::Class() { return *((IfcParse::entity*)IFC2X3_types[583]); }
// Ifc2x3::IfcPreDefinedCurveFont::IfcPreDefinedCurveFont(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedItem(e) { }
// Ifc2x3::IfcPreDefinedCurveFont::IfcPreDefinedCurveFont(std::string v1_Name) : IfcPreDefinedItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPreDefinedDimensionSymbol


// const IfcParse::entity& Ifc2x3::IfcPreDefinedDimensionSymbol::declaration() const { return *((IfcParse::entity*)IFC2X3_types[584]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedDimensionSymbol::Class() { return *((IfcParse::entity*)IFC2X3_types[584]); }
// Ifc2x3::IfcPreDefinedDimensionSymbol::IfcPreDefinedDimensionSymbol(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedSymbol(e) { }
// Ifc2x3::IfcPreDefinedDimensionSymbol::IfcPreDefinedDimensionSymbol(std::string v1_Name) : IfcPreDefinedSymbol(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPreDefinedItem
std::string Ifc2x3::IfcPreDefinedItem::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcPreDefinedItem::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcPreDefinedItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[585]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedItem::Class() { return *((IfcParse::entity*)IFC2X3_types[585]); }
// Ifc2x3::IfcPreDefinedItem::IfcPreDefinedItem(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPreDefinedItem::IfcPreDefinedItem(std::string v1_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPreDefinedPointMarkerSymbol


// const IfcParse::entity& Ifc2x3::IfcPreDefinedPointMarkerSymbol::declaration() const { return *((IfcParse::entity*)IFC2X3_types[586]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedPointMarkerSymbol::Class() { return *((IfcParse::entity*)IFC2X3_types[586]); }
// Ifc2x3::IfcPreDefinedPointMarkerSymbol::IfcPreDefinedPointMarkerSymbol(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedSymbol(e) { }
// Ifc2x3::IfcPreDefinedPointMarkerSymbol::IfcPreDefinedPointMarkerSymbol(std::string v1_Name) : IfcPreDefinedSymbol(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPreDefinedSymbol


// const IfcParse::entity& Ifc2x3::IfcPreDefinedSymbol::declaration() const { return *((IfcParse::entity*)IFC2X3_types[587]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedSymbol::Class() { return *((IfcParse::entity*)IFC2X3_types[587]); }
// Ifc2x3::IfcPreDefinedSymbol::IfcPreDefinedSymbol(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedItem(e) { }
// Ifc2x3::IfcPreDefinedSymbol::IfcPreDefinedSymbol(std::string v1_Name) : IfcPreDefinedItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPreDefinedTerminatorSymbol


// const IfcParse::entity& Ifc2x3::IfcPreDefinedTerminatorSymbol::declaration() const { return *((IfcParse::entity*)IFC2X3_types[588]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedTerminatorSymbol::Class() { return *((IfcParse::entity*)IFC2X3_types[588]); }
// Ifc2x3::IfcPreDefinedTerminatorSymbol::IfcPreDefinedTerminatorSymbol(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedSymbol(e) { }
// Ifc2x3::IfcPreDefinedTerminatorSymbol::IfcPreDefinedTerminatorSymbol(std::string v1_Name) : IfcPreDefinedSymbol(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPreDefinedTextFont


// const IfcParse::entity& Ifc2x3::IfcPreDefinedTextFont::declaration() const { return *((IfcParse::entity*)IFC2X3_types[589]); }
const IfcParse::entity& Ifc2x3::IfcPreDefinedTextFont::Class() { return *((IfcParse::entity*)IFC2X3_types[589]); }
// Ifc2x3::IfcPreDefinedTextFont::IfcPreDefinedTextFont(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedItem(e) { }
// Ifc2x3::IfcPreDefinedTextFont::IfcPreDefinedTextFont(std::string v1_Name) : IfcPreDefinedItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Name));; populate_derived(); }

// Function implementations for IfcPresentationLayerAssignment
std::string Ifc2x3::IfcPresentationLayerAssignment::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcPresentationLayerAssignment::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcPresentationLayerAssignment::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcPresentationLayerAssignment::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::vector< ::Ifc2x3::IfcLayeredItem > Ifc2x3::IfcPresentationLayerAssignment::AssignedItems() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcLayeredItem>(es); }
void Ifc2x3::IfcPresentationLayerAssignment::setAssignedItems(const std::vector< ::Ifc2x3::IfcLayeredItem >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }
std::optional< std::string > Ifc2x3::IfcPresentationLayerAssignment::Identifier() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcPresentationLayerAssignment::setIdentifier(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcPresentationLayerAssignment::declaration() const { return *((IfcParse::entity*)IFC2X3_types[591]); }
const IfcParse::entity& Ifc2x3::IfcPresentationLayerAssignment::Class() { return *((IfcParse::entity*)IFC2X3_types[591]); }
// Ifc2x3::IfcPresentationLayerAssignment::IfcPresentationLayerAssignment(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPresentationLayerAssignment::IfcPresentationLayerAssignment(std::string v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcLayeredItem > v3_AssignedItems, std::optional< std::string > v4_Identifier) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_AssignedItems)->generalize()); if (v4_Identifier) {set_attribute_value(3, (*v4_Identifier)); }; populate_derived(); }

// Function implementations for IfcPresentationLayerWithStyle
boost::logic::tribool Ifc2x3::IfcPresentationLayerWithStyle::LayerOn() const {  boost::logic::tribool v = get_attribute_value(4); return v; }
void Ifc2x3::IfcPresentationLayerWithStyle::setLayerOn(const boost::logic::tribool& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
boost::logic::tribool Ifc2x3::IfcPresentationLayerWithStyle::LayerFrozen() const {  boost::logic::tribool v = get_attribute_value(5); return v; }
void Ifc2x3::IfcPresentationLayerWithStyle::setLayerFrozen(const boost::logic::tribool& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
boost::logic::tribool Ifc2x3::IfcPresentationLayerWithStyle::LayerBlocked() const {  boost::logic::tribool v = get_attribute_value(6); return v; }
void Ifc2x3::IfcPresentationLayerWithStyle::setLayerBlocked(const boost::logic::tribool& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::vector< ::Ifc2x3::IfcPresentationStyleSelect > Ifc2x3::IfcPresentationLayerWithStyle::LayerStyles() const {  std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcPresentationStyleSelect>(es); }
void Ifc2x3::IfcPresentationLayerWithStyle::setLayerStyles(const std::vector< ::Ifc2x3::IfcPresentationStyleSelect >& v) { set_attribute_value(7, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcPresentationLayerWithStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[592]); }
const IfcParse::entity& Ifc2x3::IfcPresentationLayerWithStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[592]); }
// Ifc2x3::IfcPresentationLayerWithStyle::IfcPresentationLayerWithStyle(const std::weak_ptr<InstanceData>& e) : IfcPresentationLayerAssignment(e) { }
// Ifc2x3::IfcPresentationLayerWithStyle::IfcPresentationLayerWithStyle(std::string v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcLayeredItem > v3_AssignedItems, std::optional< std::string > v4_Identifier, boost::logic::tribool v5_LayerOn, boost::logic::tribool v6_LayerFrozen, boost::logic::tribool v7_LayerBlocked, std::vector< ::Ifc2x3::IfcPresentationStyleSelect > v8_LayerStyles) : IfcPresentationLayerAssignment(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_AssignedItems)->generalize()); if (v4_Identifier) {set_attribute_value(3, (*v4_Identifier)); }set_attribute_value(4, (v5_LayerOn));set_attribute_value(5, (v6_LayerFrozen));set_attribute_value(6, (v7_LayerBlocked));set_attribute_value(7, (v8_LayerStyles)->generalize());; populate_derived(); }

// Function implementations for IfcPresentationStyle
std::optional< std::string > Ifc2x3::IfcPresentationStyle::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcPresentationStyle::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }


// const IfcParse::entity& Ifc2x3::IfcPresentationStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[593]); }
const IfcParse::entity& Ifc2x3::IfcPresentationStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[593]); }
// Ifc2x3::IfcPresentationStyle::IfcPresentationStyle(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPresentationStyle::IfcPresentationStyle(std::optional< std::string > v1_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }; populate_derived(); }

// Function implementations for IfcPresentationStyleAssignment
std::vector< ::Ifc2x3::IfcPresentationStyleSelect > Ifc2x3::IfcPresentationStyleAssignment::Styles() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcPresentationStyleSelect>(es); }
void Ifc2x3::IfcPresentationStyleAssignment::setStyles(const std::vector< ::Ifc2x3::IfcPresentationStyleSelect >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcPresentationStyleAssignment::declaration() const { return *((IfcParse::entity*)IFC2X3_types[594]); }
const IfcParse::entity& Ifc2x3::IfcPresentationStyleAssignment::Class() { return *((IfcParse::entity*)IFC2X3_types[594]); }
// Ifc2x3::IfcPresentationStyleAssignment::IfcPresentationStyleAssignment(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPresentationStyleAssignment::IfcPresentationStyleAssignment(std::vector< ::Ifc2x3::IfcPresentationStyleSelect > v1_Styles) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Styles)->generalize());; populate_derived(); }

// Function implementations for IfcProcedure
std::string Ifc2x3::IfcProcedure::ProcedureID() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcProcedure::setProcedureID(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcProcedureTypeEnum::Value Ifc2x3::IfcProcedure::ProcedureType() const {  return ::Ifc2x3::IfcProcedureTypeEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcProcedure::setProcedureType(const ::Ifc2x3::IfcProcedureTypeEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcProcedureTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }
std::optional< std::string > Ifc2x3::IfcProcedure::UserDefinedProcedureType() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcProcedure::setUserDefinedProcedureType(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcProcedure::declaration() const { return *((IfcParse::entity*)IFC2X3_types[597]); }
const IfcParse::entity& Ifc2x3::IfcProcedure::Class() { return *((IfcParse::entity*)IFC2X3_types[597]); }
// Ifc2x3::IfcProcedure::IfcProcedure(const std::weak_ptr<InstanceData>& e) : IfcProcess(e) { }
// Ifc2x3::IfcProcedure::IfcProcedure(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_ProcedureID, ::Ifc2x3::IfcProcedureTypeEnum::Value v7_ProcedureType, std::optional< std::string > v8_UserDefinedProcedureType) : IfcProcess(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_ProcedureID));set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcProcedureTypeEnum::Class(),(size_t)v7_ProcedureType))); if (v8_UserDefinedProcedureType) {set_attribute_value(7, (*v8_UserDefinedProcedureType)); }; populate_derived(); }

// Function implementations for IfcProcess

std::vector<::Ifc2x3::IfcRelAssignsToProcess> Ifc2x3::IfcProcess::OperatesOn() const { return cast_vector<IfcRelAssignsToProcess>(file()->getInverse(data()->id(), IFC2X3_types[673], 6)); }
std::vector<::Ifc2x3::IfcRelSequence> Ifc2x3::IfcProcess::IsSuccessorFrom() const { return cast_vector<IfcRelSequence>(file()->getInverse(data()->id(), IFC2X3_types[714], 5)); }
std::vector<::Ifc2x3::IfcRelSequence> Ifc2x3::IfcProcess::IsPredecessorTo() const { return cast_vector<IfcRelSequence>(file()->getInverse(data()->id(), IFC2X3_types[714], 4)); }

// const IfcParse::entity& Ifc2x3::IfcProcess::declaration() const { return *((IfcParse::entity*)IFC2X3_types[599]); }
const IfcParse::entity& Ifc2x3::IfcProcess::Class() { return *((IfcParse::entity*)IFC2X3_types[599]); }
// Ifc2x3::IfcProcess::IfcProcess(const std::weak_ptr<InstanceData>& e) : IfcObject(e) { }
// Ifc2x3::IfcProcess::IfcProcess(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcProduct
::Ifc2x3::IfcObjectPlacement Ifc2x3::IfcProduct::ObjectPlacement() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcObjectPlacement{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcObjectPlacement>(); }
void Ifc2x3::IfcProduct::setObjectPlacement(const ::Ifc2x3::IfcObjectPlacement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcProductRepresentation Ifc2x3::IfcProduct::Representation() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcProductRepresentation{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcProductRepresentation>(); }
void Ifc2x3::IfcProduct::setRepresentation(const ::Ifc2x3::IfcProductRepresentation& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }

std::vector<::Ifc2x3::IfcRelAssignsToProduct> Ifc2x3::IfcProduct::ReferencedBy() const { return cast_vector<IfcRelAssignsToProduct>(file()->getInverse(data()->id(), IFC2X3_types[674], 6)); }

// const IfcParse::entity& Ifc2x3::IfcProduct::declaration() const { return *((IfcParse::entity*)IFC2X3_types[600]); }
const IfcParse::entity& Ifc2x3::IfcProduct::Class() { return *((IfcParse::entity*)IFC2X3_types[600]); }
// Ifc2x3::IfcProduct::IfcProduct(const std::weak_ptr<InstanceData>& e) : IfcObject(e) { }
// Ifc2x3::IfcProduct::IfcProduct(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation) : IfcObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }; populate_derived(); }

// Function implementations for IfcProductDefinitionShape

std::vector<::Ifc2x3::IfcProduct> Ifc2x3::IfcProductDefinitionShape::ShapeOfProduct() const { return cast_vector<IfcProduct>(file()->getInverse(data()->id(), IFC2X3_types[600], 6)); }
std::vector<::Ifc2x3::IfcShapeAspect> Ifc2x3::IfcProductDefinitionShape::HasShapeAspects() const { return cast_vector<IfcShapeAspect>(file()->getInverse(data()->id(), IFC2X3_types[755], 4)); }

// const IfcParse::entity& Ifc2x3::IfcProductDefinitionShape::declaration() const { return *((IfcParse::entity*)IFC2X3_types[601]); }
const IfcParse::entity& Ifc2x3::IfcProductDefinitionShape::Class() { return *((IfcParse::entity*)IFC2X3_types[601]); }
// Ifc2x3::IfcProductDefinitionShape::IfcProductDefinitionShape(const std::weak_ptr<InstanceData>& e) : IfcProductRepresentation(e) { }
// Ifc2x3::IfcProductDefinitionShape::IfcProductDefinitionShape(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcRepresentation > v3_Representations) : IfcProductRepresentation(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_Representations)->generalize());; populate_derived(); }

// Function implementations for IfcProductRepresentation
std::optional< std::string > Ifc2x3::IfcProductRepresentation::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcProductRepresentation::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcProductRepresentation::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcProductRepresentation::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::vector< ::Ifc2x3::IfcRepresentation > Ifc2x3::IfcProductRepresentation::Representations() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcRepresentation>(es); }
void Ifc2x3::IfcProductRepresentation::setRepresentations(const std::vector< ::Ifc2x3::IfcRepresentation >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcProductRepresentation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[602]); }
const IfcParse::entity& Ifc2x3::IfcProductRepresentation::Class() { return *((IfcParse::entity*)IFC2X3_types[602]); }
// Ifc2x3::IfcProductRepresentation::IfcProductRepresentation(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcProductRepresentation::IfcProductRepresentation(std::optional< std::string > v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcRepresentation > v3_Representations) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_Representations)->generalize());; populate_derived(); }

// Function implementations for IfcProductsOfCombustionProperties
std::optional< double > Ifc2x3::IfcProductsOfCombustionProperties::SpecificHeatCapacity() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcProductsOfCombustionProperties::setSpecificHeatCapacity(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcProductsOfCombustionProperties::N20Content() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcProductsOfCombustionProperties::setN20Content(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcProductsOfCombustionProperties::COContent() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcProductsOfCombustionProperties::setCOContent(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcProductsOfCombustionProperties::CO2Content() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcProductsOfCombustionProperties::setCO2Content(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcProductsOfCombustionProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[603]); }
const IfcParse::entity& Ifc2x3::IfcProductsOfCombustionProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[603]); }
// Ifc2x3::IfcProductsOfCombustionProperties::IfcProductsOfCombustionProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcProductsOfCombustionProperties::IfcProductsOfCombustionProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_SpecificHeatCapacity, std::optional< double > v3_N20Content, std::optional< double > v4_COContent, std::optional< double > v5_CO2Content) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Material)); if (v2_SpecificHeatCapacity) {set_attribute_value(1, (*v2_SpecificHeatCapacity)); } if (v3_N20Content) {set_attribute_value(2, (*v3_N20Content)); } if (v4_COContent) {set_attribute_value(3, (*v4_COContent)); } if (v5_CO2Content) {set_attribute_value(4, (*v5_CO2Content)); }; populate_derived(); }

// Function implementations for IfcProfileDef
::Ifc2x3::IfcProfileTypeEnum::Value Ifc2x3::IfcProfileDef::ProfileType() const {  return ::Ifc2x3::IfcProfileTypeEnum::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcProfileDef::setProfileType(const ::Ifc2x3::IfcProfileTypeEnum::Value& v) { set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcProfileDef::ProfileName() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcProfileDef::setProfileName(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }


// const IfcParse::entity& Ifc2x3::IfcProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[604]); }
const IfcParse::entity& Ifc2x3::IfcProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[604]); }
// Ifc2x3::IfcProfileDef::IfcProfileDef(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcProfileDef::IfcProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }; populate_derived(); }

// Function implementations for IfcProfileProperties
std::optional< std::string > Ifc2x3::IfcProfileProperties::ProfileName() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcProfileProperties::setProfileName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
::Ifc2x3::IfcProfileDef Ifc2x3::IfcProfileProperties::ProfileDefinition() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcProfileDef{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcProfileDef>(); }
void Ifc2x3::IfcProfileProperties::setProfileDefinition(const ::Ifc2x3::IfcProfileDef& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcProfileProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[605]); }
const IfcParse::entity& Ifc2x3::IfcProfileProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[605]); }
// Ifc2x3::IfcProfileProperties::IfcProfileProperties(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcProfileProperties::IfcProfileProperties(std::optional< std::string > v1_ProfileName, ::Ifc2x3::IfcProfileDef v2_ProfileDefinition) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) {  if (v1_ProfileName) {set_attribute_value(0, (*v1_ProfileName)); } if (v2_ProfileDefinition) {set_attribute_value(1, (*v2_ProfileDefinition)); }; populate_derived(); }

// Function implementations for IfcProject
std::optional< std::string > Ifc2x3::IfcProject::LongName() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcProject::setLongName(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< std::string > Ifc2x3::IfcProject::Phase() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcProject::setPhase(const std::optional< std::string >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::vector< ::Ifc2x3::IfcRepresentationContext > Ifc2x3::IfcProject::RepresentationContexts() const {  std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcRepresentationContext>(es); }
void Ifc2x3::IfcProject::setRepresentationContexts(const std::vector< ::Ifc2x3::IfcRepresentationContext >& v) { set_attribute_value(7, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcUnitAssignment Ifc2x3::IfcProject::UnitsInContext() const {  return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcUnitAssignment>(); }
void Ifc2x3::IfcProject::setUnitsInContext(const ::Ifc2x3::IfcUnitAssignment& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcProject::declaration() const { return *((IfcParse::entity*)IFC2X3_types[607]); }
const IfcParse::entity& Ifc2x3::IfcProject::Class() { return *((IfcParse::entity*)IFC2X3_types[607]); }
// Ifc2x3::IfcProject::IfcProject(const std::weak_ptr<InstanceData>& e) : IfcObject(e) { }
// Ifc2x3::IfcProject::IfcProject(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_LongName, std::optional< std::string > v7_Phase, std::vector< ::Ifc2x3::IfcRepresentationContext > v8_RepresentationContexts, ::Ifc2x3::IfcUnitAssignment v9_UnitsInContext) : IfcObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_LongName) {set_attribute_value(5, (*v6_LongName)); } if (v7_Phase) {set_attribute_value(6, (*v7_Phase)); }set_attribute_value(7, (v8_RepresentationContexts)->generalize());set_attribute_value(8, (v9_UnitsInContext));; populate_derived(); }

// Function implementations for IfcProjectOrder
std::string Ifc2x3::IfcProjectOrder::ID() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcProjectOrder::setID(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcProjectOrderTypeEnum::Value Ifc2x3::IfcProjectOrder::PredefinedType() const {  return ::Ifc2x3::IfcProjectOrderTypeEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcProjectOrder::setPredefinedType(const ::Ifc2x3::IfcProjectOrderTypeEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcProjectOrderTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }
std::optional< std::string > Ifc2x3::IfcProjectOrder::Status() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcProjectOrder::setStatus(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcProjectOrder::declaration() const { return *((IfcParse::entity*)IFC2X3_types[611]); }
const IfcParse::entity& Ifc2x3::IfcProjectOrder::Class() { return *((IfcParse::entity*)IFC2X3_types[611]); }
// Ifc2x3::IfcProjectOrder::IfcProjectOrder(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcProjectOrder::IfcProjectOrder(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_ID, ::Ifc2x3::IfcProjectOrderTypeEnum::Value v7_PredefinedType, std::optional< std::string > v8_Status) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_ID));set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcProjectOrderTypeEnum::Class(),(size_t)v7_PredefinedType))); if (v8_Status) {set_attribute_value(7, (*v8_Status)); }; populate_derived(); }

// Function implementations for IfcProjectOrderRecord
std::vector< ::Ifc2x3::IfcRelAssignsToProjectOrder > Ifc2x3::IfcProjectOrderRecord::Records() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcRelAssignsToProjectOrder>(es); }
void Ifc2x3::IfcProjectOrderRecord::setRecords(const std::vector< ::Ifc2x3::IfcRelAssignsToProjectOrder >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcProjectOrderRecordTypeEnum::Value Ifc2x3::IfcProjectOrderRecord::PredefinedType() const {  return ::Ifc2x3::IfcProjectOrderRecordTypeEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcProjectOrderRecord::setPredefinedType(const ::Ifc2x3::IfcProjectOrderRecordTypeEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcProjectOrderRecordTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcProjectOrderRecord::declaration() const { return *((IfcParse::entity*)IFC2X3_types[612]); }
const IfcParse::entity& Ifc2x3::IfcProjectOrderRecord::Class() { return *((IfcParse::entity*)IFC2X3_types[612]); }
// Ifc2x3::IfcProjectOrderRecord::IfcProjectOrderRecord(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcProjectOrderRecord::IfcProjectOrderRecord(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::vector< ::Ifc2x3::IfcRelAssignsToProjectOrder > v6_Records, ::Ifc2x3::IfcProjectOrderRecordTypeEnum::Value v7_PredefinedType) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_Records)->generalize());set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcProjectOrderRecordTypeEnum::Class(),(size_t)v7_PredefinedType)));; populate_derived(); }

// Function implementations for IfcProjectionCurve


// const IfcParse::entity& Ifc2x3::IfcProjectionCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[609]); }
const IfcParse::entity& Ifc2x3::IfcProjectionCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[609]); }
// Ifc2x3::IfcProjectionCurve::IfcProjectionCurve(const std::weak_ptr<InstanceData>& e) : IfcAnnotationCurveOccurrence(e) { }
// Ifc2x3::IfcProjectionCurve::IfcProjectionCurve(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcAnnotationCurveOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcProjectionElement


// const IfcParse::entity& Ifc2x3::IfcProjectionElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[610]); }
const IfcParse::entity& Ifc2x3::IfcProjectionElement::Class() { return *((IfcParse::entity*)IFC2X3_types[610]); }
// Ifc2x3::IfcProjectionElement::IfcProjectionElement(const std::weak_ptr<InstanceData>& e) : IfcFeatureElementAddition(e) { }
// Ifc2x3::IfcProjectionElement::IfcProjectionElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcFeatureElementAddition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcProperty
std::string Ifc2x3::IfcProperty::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcProperty::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcProperty::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcProperty::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }

std::vector<::Ifc2x3::IfcPropertyDependencyRelationship> Ifc2x3::IfcProperty::PropertyForDependance() const { return cast_vector<IfcPropertyDependencyRelationship>(file()->getInverse(data()->id(), IFC2X3_types[619], 0)); }
std::vector<::Ifc2x3::IfcPropertyDependencyRelationship> Ifc2x3::IfcProperty::PropertyDependsOn() const { return cast_vector<IfcPropertyDependencyRelationship>(file()->getInverse(data()->id(), IFC2X3_types[619], 1)); }
std::vector<::Ifc2x3::IfcComplexProperty> Ifc2x3::IfcProperty::PartOfComplex() const { return cast_vector<IfcComplexProperty>(file()->getInverse(data()->id(), IFC2X3_types[131], 3)); }

// const IfcParse::entity& Ifc2x3::IfcProperty::declaration() const { return *((IfcParse::entity*)IFC2X3_types[615]); }
const IfcParse::entity& Ifc2x3::IfcProperty::Class() { return *((IfcParse::entity*)IFC2X3_types[615]); }
// Ifc2x3::IfcProperty::IfcProperty(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcProperty::IfcProperty(std::string v1_Name, std::optional< std::string > v2_Description) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }; populate_derived(); }

// Function implementations for IfcPropertyBoundedValue
::Ifc2x3::IfcValue Ifc2x3::IfcPropertyBoundedValue::UpperBoundValue() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcValue{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcValue>(); }
void Ifc2x3::IfcPropertyBoundedValue::setUpperBoundValue(const ::Ifc2x3::IfcValue& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcValue Ifc2x3::IfcPropertyBoundedValue::LowerBoundValue() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcValue{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcValue>(); }
void Ifc2x3::IfcPropertyBoundedValue::setLowerBoundValue(const ::Ifc2x3::IfcValue& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcUnit Ifc2x3::IfcPropertyBoundedValue::Unit() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcUnit{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcPropertyBoundedValue::setUnit(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcPropertyBoundedValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[616]); }
const IfcParse::entity& Ifc2x3::IfcPropertyBoundedValue::Class() { return *((IfcParse::entity*)IFC2X3_types[616]); }
// Ifc2x3::IfcPropertyBoundedValue::IfcPropertyBoundedValue(const std::weak_ptr<InstanceData>& e) : IfcSimpleProperty(e) { }
// Ifc2x3::IfcPropertyBoundedValue::IfcPropertyBoundedValue(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcValue v3_UpperBoundValue, ::Ifc2x3::IfcValue v4_LowerBoundValue, ::Ifc2x3::IfcUnit v5_Unit) : IfcSimpleProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_UpperBoundValue) {set_attribute_value(2, (*v3_UpperBoundValue)); } if (v4_LowerBoundValue) {set_attribute_value(3, (*v4_LowerBoundValue)); } if (v5_Unit) {set_attribute_value(4, (*v5_Unit)); }; populate_derived(); }

// Function implementations for IfcPropertyConstraintRelationship
::Ifc2x3::IfcConstraint Ifc2x3::IfcPropertyConstraintRelationship::RelatingConstraint() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcConstraint>(); }
void Ifc2x3::IfcPropertyConstraintRelationship::setRelatingConstraint(const ::Ifc2x3::IfcConstraint& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcProperty > Ifc2x3::IfcPropertyConstraintRelationship::RelatedProperties() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcProperty>(es); }
void Ifc2x3::IfcPropertyConstraintRelationship::setRelatedProperties(const std::vector< ::Ifc2x3::IfcProperty >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcPropertyConstraintRelationship::Name() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcPropertyConstraintRelationship::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::string > Ifc2x3::IfcPropertyConstraintRelationship::Description() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcPropertyConstraintRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcPropertyConstraintRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[617]); }
const IfcParse::entity& Ifc2x3::IfcPropertyConstraintRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[617]); }
// Ifc2x3::IfcPropertyConstraintRelationship::IfcPropertyConstraintRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPropertyConstraintRelationship::IfcPropertyConstraintRelationship(::Ifc2x3::IfcConstraint v1_RelatingConstraint, std::vector< ::Ifc2x3::IfcProperty > v2_RelatedProperties, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_RelatingConstraint));set_attribute_value(1, (v2_RelatedProperties)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcPropertyDefinition

std::vector<::Ifc2x3::IfcRelAssociates> Ifc2x3::IfcPropertyDefinition::HasAssociations() const { return cast_vector<IfcRelAssociates>(file()->getInverse(data()->id(), IFC2X3_types[677], 4)); }

// const IfcParse::entity& Ifc2x3::IfcPropertyDefinition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[618]); }
const IfcParse::entity& Ifc2x3::IfcPropertyDefinition::Class() { return *((IfcParse::entity*)IFC2X3_types[618]); }
// Ifc2x3::IfcPropertyDefinition::IfcPropertyDefinition(const std::weak_ptr<InstanceData>& e) : IfcRoot(e) { }
// Ifc2x3::IfcPropertyDefinition::IfcPropertyDefinition(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : IfcRoot(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcPropertyDependencyRelationship
::Ifc2x3::IfcProperty Ifc2x3::IfcPropertyDependencyRelationship::DependingProperty() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcProperty>(); }
void Ifc2x3::IfcPropertyDependencyRelationship::setDependingProperty(const ::Ifc2x3::IfcProperty& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcProperty Ifc2x3::IfcPropertyDependencyRelationship::DependantProperty() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcProperty>(); }
void Ifc2x3::IfcPropertyDependencyRelationship::setDependantProperty(const ::Ifc2x3::IfcProperty& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcPropertyDependencyRelationship::Name() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcPropertyDependencyRelationship::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::string > Ifc2x3::IfcPropertyDependencyRelationship::Description() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcPropertyDependencyRelationship::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< std::string > Ifc2x3::IfcPropertyDependencyRelationship::Expression() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcPropertyDependencyRelationship::setExpression(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcPropertyDependencyRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[619]); }
const IfcParse::entity& Ifc2x3::IfcPropertyDependencyRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[619]); }
// Ifc2x3::IfcPropertyDependencyRelationship::IfcPropertyDependencyRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPropertyDependencyRelationship::IfcPropertyDependencyRelationship(::Ifc2x3::IfcProperty v1_DependingProperty, ::Ifc2x3::IfcProperty v2_DependantProperty, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_Expression) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_DependingProperty));set_attribute_value(1, (v2_DependantProperty)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_Expression) {set_attribute_value(4, (*v5_Expression)); }; populate_derived(); }

// Function implementations for IfcPropertyEnumeratedValue
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcPropertyEnumeratedValue::EnumerationValues() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcPropertyEnumeratedValue::setEnumerationValues(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcPropertyEnumeration Ifc2x3::IfcPropertyEnumeratedValue::EnumerationReference() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcPropertyEnumeration{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcPropertyEnumeration>(); }
void Ifc2x3::IfcPropertyEnumeratedValue::setEnumerationReference(const ::Ifc2x3::IfcPropertyEnumeration& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcPropertyEnumeratedValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[620]); }
const IfcParse::entity& Ifc2x3::IfcPropertyEnumeratedValue::Class() { return *((IfcParse::entity*)IFC2X3_types[620]); }
// Ifc2x3::IfcPropertyEnumeratedValue::IfcPropertyEnumeratedValue(const std::weak_ptr<InstanceData>& e) : IfcSimpleProperty(e) { }
// Ifc2x3::IfcPropertyEnumeratedValue::IfcPropertyEnumeratedValue(std::string v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcValue > v3_EnumerationValues, ::Ifc2x3::IfcPropertyEnumeration v4_EnumerationReference) : IfcSimpleProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_EnumerationValues)->generalize()); if (v4_EnumerationReference) {set_attribute_value(3, (*v4_EnumerationReference)); }; populate_derived(); }

// Function implementations for IfcPropertyEnumeration
std::string Ifc2x3::IfcPropertyEnumeration::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcPropertyEnumeration::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcPropertyEnumeration::EnumerationValues() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcPropertyEnumeration::setEnumerationValues(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcUnit Ifc2x3::IfcPropertyEnumeration::Unit() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcUnit{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcPropertyEnumeration::setUnit(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcPropertyEnumeration::declaration() const { return *((IfcParse::entity*)IFC2X3_types[621]); }
const IfcParse::entity& Ifc2x3::IfcPropertyEnumeration::Class() { return *((IfcParse::entity*)IFC2X3_types[621]); }
// Ifc2x3::IfcPropertyEnumeration::IfcPropertyEnumeration(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcPropertyEnumeration::IfcPropertyEnumeration(std::string v1_Name, std::vector< ::Ifc2x3::IfcValue > v2_EnumerationValues, ::Ifc2x3::IfcUnit v3_Unit) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Name));set_attribute_value(1, (v2_EnumerationValues)->generalize()); if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }; populate_derived(); }

// Function implementations for IfcPropertyListValue
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcPropertyListValue::ListValues() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcPropertyListValue::setListValues(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcUnit Ifc2x3::IfcPropertyListValue::Unit() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcUnit{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcPropertyListValue::setUnit(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcPropertyListValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[622]); }
const IfcParse::entity& Ifc2x3::IfcPropertyListValue::Class() { return *((IfcParse::entity*)IFC2X3_types[622]); }
// Ifc2x3::IfcPropertyListValue::IfcPropertyListValue(const std::weak_ptr<InstanceData>& e) : IfcSimpleProperty(e) { }
// Ifc2x3::IfcPropertyListValue::IfcPropertyListValue(std::string v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcValue > v3_ListValues, ::Ifc2x3::IfcUnit v4_Unit) : IfcSimpleProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_ListValues)->generalize()); if (v4_Unit) {set_attribute_value(3, (*v4_Unit)); }; populate_derived(); }

// Function implementations for IfcPropertyReferenceValue
std::optional< std::string > Ifc2x3::IfcPropertyReferenceValue::UsageName() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcPropertyReferenceValue::setUsageName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
::Ifc2x3::IfcObjectReferenceSelect Ifc2x3::IfcPropertyReferenceValue::PropertyReference() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcObjectReferenceSelect>(); }
void Ifc2x3::IfcPropertyReferenceValue::setPropertyReference(const ::Ifc2x3::IfcObjectReferenceSelect& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcPropertyReferenceValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[623]); }
const IfcParse::entity& Ifc2x3::IfcPropertyReferenceValue::Class() { return *((IfcParse::entity*)IFC2X3_types[623]); }
// Ifc2x3::IfcPropertyReferenceValue::IfcPropertyReferenceValue(const std::weak_ptr<InstanceData>& e) : IfcSimpleProperty(e) { }
// Ifc2x3::IfcPropertyReferenceValue::IfcPropertyReferenceValue(std::string v1_Name, std::optional< std::string > v2_Description, std::optional< std::string > v3_UsageName, ::Ifc2x3::IfcObjectReferenceSelect v4_PropertyReference) : IfcSimpleProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_UsageName) {set_attribute_value(2, (*v3_UsageName)); }set_attribute_value(3, (v4_PropertyReference));; populate_derived(); }

// Function implementations for IfcPropertySet
std::vector< ::Ifc2x3::IfcProperty > Ifc2x3::IfcPropertySet::HasProperties() const {  std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcProperty>(es); }
void Ifc2x3::IfcPropertySet::setHasProperties(const std::vector< ::Ifc2x3::IfcProperty >& v) { set_attribute_value(4, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcPropertySet::declaration() const { return *((IfcParse::entity*)IFC2X3_types[624]); }
const IfcParse::entity& Ifc2x3::IfcPropertySet::Class() { return *((IfcParse::entity*)IFC2X3_types[624]); }
// Ifc2x3::IfcPropertySet::IfcPropertySet(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcPropertySet::IfcPropertySet(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcProperty > v5_HasProperties) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_HasProperties)->generalize());; populate_derived(); }

// Function implementations for IfcPropertySetDefinition

std::vector<::Ifc2x3::IfcRelDefinesByProperties> Ifc2x3::IfcPropertySetDefinition::PropertyDefinitionOf() const { return cast_vector<IfcRelDefinesByProperties>(file()->getInverse(data()->id(), IFC2X3_types[703], 5)); }
std::vector<::Ifc2x3::IfcTypeObject> Ifc2x3::IfcPropertySetDefinition::DefinesType() const { return cast_vector<IfcTypeObject>(file()->getInverse(data()->id(), IFC2X3_types[932], 5)); }

// const IfcParse::entity& Ifc2x3::IfcPropertySetDefinition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[625]); }
const IfcParse::entity& Ifc2x3::IfcPropertySetDefinition::Class() { return *((IfcParse::entity*)IFC2X3_types[625]); }
// Ifc2x3::IfcPropertySetDefinition::IfcPropertySetDefinition(const std::weak_ptr<InstanceData>& e) : IfcPropertyDefinition(e) { }
// Ifc2x3::IfcPropertySetDefinition::IfcPropertySetDefinition(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : IfcPropertyDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcPropertySingleValue
::Ifc2x3::IfcValue Ifc2x3::IfcPropertySingleValue::NominalValue() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcValue{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcValue>(); }
void Ifc2x3::IfcPropertySingleValue::setNominalValue(const ::Ifc2x3::IfcValue& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcUnit Ifc2x3::IfcPropertySingleValue::Unit() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcUnit{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcPropertySingleValue::setUnit(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcPropertySingleValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[626]); }
const IfcParse::entity& Ifc2x3::IfcPropertySingleValue::Class() { return *((IfcParse::entity*)IFC2X3_types[626]); }
// Ifc2x3::IfcPropertySingleValue::IfcPropertySingleValue(const std::weak_ptr<InstanceData>& e) : IfcSimpleProperty(e) { }
// Ifc2x3::IfcPropertySingleValue::IfcPropertySingleValue(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcValue v3_NominalValue, ::Ifc2x3::IfcUnit v4_Unit) : IfcSimpleProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_NominalValue) {set_attribute_value(2, (*v3_NominalValue)); } if (v4_Unit) {set_attribute_value(3, (*v4_Unit)); }; populate_derived(); }

// Function implementations for IfcPropertyTableValue
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcPropertyTableValue::DefiningValues() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcPropertyTableValue::setDefiningValues(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcPropertyTableValue::DefinedValues() const {  std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcPropertyTableValue::setDefinedValues(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(3, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(3); }
std::optional< std::string > Ifc2x3::IfcPropertyTableValue::Expression() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcPropertyTableValue::setExpression(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
::Ifc2x3::IfcUnit Ifc2x3::IfcPropertyTableValue::DefiningUnit() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcUnit{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcPropertyTableValue::setDefiningUnit(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcUnit Ifc2x3::IfcPropertyTableValue::DefinedUnit() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcUnit{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcPropertyTableValue::setDefinedUnit(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcPropertyTableValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[628]); }
const IfcParse::entity& Ifc2x3::IfcPropertyTableValue::Class() { return *((IfcParse::entity*)IFC2X3_types[628]); }
// Ifc2x3::IfcPropertyTableValue::IfcPropertyTableValue(const std::weak_ptr<InstanceData>& e) : IfcSimpleProperty(e) { }
// Ifc2x3::IfcPropertyTableValue::IfcPropertyTableValue(std::string v1_Name, std::optional< std::string > v2_Description, std::vector< ::Ifc2x3::IfcValue > v3_DefiningValues, std::vector< ::Ifc2x3::IfcValue > v4_DefinedValues, std::optional< std::string > v5_Expression, ::Ifc2x3::IfcUnit v6_DefiningUnit, ::Ifc2x3::IfcUnit v7_DefinedUnit) : IfcSimpleProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_DefiningValues)->generalize());set_attribute_value(3, (v4_DefinedValues)->generalize()); if (v5_Expression) {set_attribute_value(4, (*v5_Expression)); } if (v6_DefiningUnit) {set_attribute_value(5, (*v6_DefiningUnit)); } if (v7_DefinedUnit) {set_attribute_value(6, (*v7_DefinedUnit)); }; populate_derived(); }

// Function implementations for IfcProtectiveDeviceType
::Ifc2x3::IfcProtectiveDeviceTypeEnum::Value Ifc2x3::IfcProtectiveDeviceType::PredefinedType() const {  return ::Ifc2x3::IfcProtectiveDeviceTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcProtectiveDeviceType::setPredefinedType(const ::Ifc2x3::IfcProtectiveDeviceTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcProtectiveDeviceTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcProtectiveDeviceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[629]); }
const IfcParse::entity& Ifc2x3::IfcProtectiveDeviceType::Class() { return *((IfcParse::entity*)IFC2X3_types[629]); }
// Ifc2x3::IfcProtectiveDeviceType::IfcProtectiveDeviceType(const std::weak_ptr<InstanceData>& e) : IfcFlowControllerType(e) { }
// Ifc2x3::IfcProtectiveDeviceType::IfcProtectiveDeviceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcProtectiveDeviceTypeEnum::Value v10_PredefinedType) : IfcFlowControllerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcProtectiveDeviceTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcProxy
::Ifc2x3::IfcObjectTypeEnum::Value Ifc2x3::IfcProxy::ProxyType() const {  return ::Ifc2x3::IfcObjectTypeEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcProxy::setProxyType(const ::Ifc2x3::IfcObjectTypeEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }
std::optional< std::string > Ifc2x3::IfcProxy::Tag() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcProxy::setTag(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcProxy::declaration() const { return *((IfcParse::entity*)IFC2X3_types[631]); }
const IfcParse::entity& Ifc2x3::IfcProxy::Class() { return *((IfcParse::entity*)IFC2X3_types[631]); }
// Ifc2x3::IfcProxy::IfcProxy(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcProxy::IfcProxy(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcObjectTypeEnum::Value v8_ProxyType, std::optional< std::string > v9_Tag) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)v8_ProxyType))); if (v9_Tag) {set_attribute_value(8, (*v9_Tag)); }; populate_derived(); }

// Function implementations for IfcPumpType
::Ifc2x3::IfcPumpTypeEnum::Value Ifc2x3::IfcPumpType::PredefinedType() const {  return ::Ifc2x3::IfcPumpTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcPumpType::setPredefinedType(const ::Ifc2x3::IfcPumpTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcPumpTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcPumpType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[632]); }
const IfcParse::entity& Ifc2x3::IfcPumpType::Class() { return *((IfcParse::entity*)IFC2X3_types[632]); }
// Ifc2x3::IfcPumpType::IfcPumpType(const std::weak_ptr<InstanceData>& e) : IfcFlowMovingDeviceType(e) { }
// Ifc2x3::IfcPumpType::IfcPumpType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcPumpTypeEnum::Value v10_PredefinedType) : IfcFlowMovingDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcPumpTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcQuantityArea
double Ifc2x3::IfcQuantityArea::AreaValue() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcQuantityArea::setAreaValue(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcQuantityArea::declaration() const { return *((IfcParse::entity*)IFC2X3_types[634]); }
const IfcParse::entity& Ifc2x3::IfcQuantityArea::Class() { return *((IfcParse::entity*)IFC2X3_types[634]); }
// Ifc2x3::IfcQuantityArea::IfcQuantityArea(const std::weak_ptr<InstanceData>& e) : IfcPhysicalSimpleQuantity(e) { }
// Ifc2x3::IfcQuantityArea::IfcQuantityArea(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcNamedUnit v3_Unit, double v4_AreaValue) : IfcPhysicalSimpleQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }set_attribute_value(3, (v4_AreaValue));; populate_derived(); }

// Function implementations for IfcQuantityCount
double Ifc2x3::IfcQuantityCount::CountValue() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcQuantityCount::setCountValue(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcQuantityCount::declaration() const { return *((IfcParse::entity*)IFC2X3_types[635]); }
const IfcParse::entity& Ifc2x3::IfcQuantityCount::Class() { return *((IfcParse::entity*)IFC2X3_types[635]); }
// Ifc2x3::IfcQuantityCount::IfcQuantityCount(const std::weak_ptr<InstanceData>& e) : IfcPhysicalSimpleQuantity(e) { }
// Ifc2x3::IfcQuantityCount::IfcQuantityCount(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcNamedUnit v3_Unit, double v4_CountValue) : IfcPhysicalSimpleQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }set_attribute_value(3, (v4_CountValue));; populate_derived(); }

// Function implementations for IfcQuantityLength
double Ifc2x3::IfcQuantityLength::LengthValue() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcQuantityLength::setLengthValue(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcQuantityLength::declaration() const { return *((IfcParse::entity*)IFC2X3_types[636]); }
const IfcParse::entity& Ifc2x3::IfcQuantityLength::Class() { return *((IfcParse::entity*)IFC2X3_types[636]); }
// Ifc2x3::IfcQuantityLength::IfcQuantityLength(const std::weak_ptr<InstanceData>& e) : IfcPhysicalSimpleQuantity(e) { }
// Ifc2x3::IfcQuantityLength::IfcQuantityLength(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcNamedUnit v3_Unit, double v4_LengthValue) : IfcPhysicalSimpleQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }set_attribute_value(3, (v4_LengthValue));; populate_derived(); }

// Function implementations for IfcQuantityTime
double Ifc2x3::IfcQuantityTime::TimeValue() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcQuantityTime::setTimeValue(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcQuantityTime::declaration() const { return *((IfcParse::entity*)IFC2X3_types[637]); }
const IfcParse::entity& Ifc2x3::IfcQuantityTime::Class() { return *((IfcParse::entity*)IFC2X3_types[637]); }
// Ifc2x3::IfcQuantityTime::IfcQuantityTime(const std::weak_ptr<InstanceData>& e) : IfcPhysicalSimpleQuantity(e) { }
// Ifc2x3::IfcQuantityTime::IfcQuantityTime(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcNamedUnit v3_Unit, double v4_TimeValue) : IfcPhysicalSimpleQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }set_attribute_value(3, (v4_TimeValue));; populate_derived(); }

// Function implementations for IfcQuantityVolume
double Ifc2x3::IfcQuantityVolume::VolumeValue() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcQuantityVolume::setVolumeValue(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcQuantityVolume::declaration() const { return *((IfcParse::entity*)IFC2X3_types[638]); }
const IfcParse::entity& Ifc2x3::IfcQuantityVolume::Class() { return *((IfcParse::entity*)IFC2X3_types[638]); }
// Ifc2x3::IfcQuantityVolume::IfcQuantityVolume(const std::weak_ptr<InstanceData>& e) : IfcPhysicalSimpleQuantity(e) { }
// Ifc2x3::IfcQuantityVolume::IfcQuantityVolume(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcNamedUnit v3_Unit, double v4_VolumeValue) : IfcPhysicalSimpleQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }set_attribute_value(3, (v4_VolumeValue));; populate_derived(); }

// Function implementations for IfcQuantityWeight
double Ifc2x3::IfcQuantityWeight::WeightValue() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcQuantityWeight::setWeightValue(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcQuantityWeight::declaration() const { return *((IfcParse::entity*)IFC2X3_types[639]); }
const IfcParse::entity& Ifc2x3::IfcQuantityWeight::Class() { return *((IfcParse::entity*)IFC2X3_types[639]); }
// Ifc2x3::IfcQuantityWeight::IfcQuantityWeight(const std::weak_ptr<InstanceData>& e) : IfcPhysicalSimpleQuantity(e) { }
// Ifc2x3::IfcQuantityWeight::IfcQuantityWeight(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcNamedUnit v3_Unit, double v4_WeightValue) : IfcPhysicalSimpleQuantity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_Unit) {set_attribute_value(2, (*v3_Unit)); }set_attribute_value(3, (v4_WeightValue));; populate_derived(); }

// Function implementations for IfcRadiusDimension


// const IfcParse::entity& Ifc2x3::IfcRadiusDimension::declaration() const { return *((IfcParse::entity*)IFC2X3_types[641]); }
const IfcParse::entity& Ifc2x3::IfcRadiusDimension::Class() { return *((IfcParse::entity*)IFC2X3_types[641]); }
// Ifc2x3::IfcRadiusDimension::IfcRadiusDimension(const std::weak_ptr<InstanceData>& e) : IfcDimensionCurveDirectedCallout(e) { }
// Ifc2x3::IfcRadiusDimension::IfcRadiusDimension(std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > v1_Contents) : IfcDimensionCurveDirectedCallout(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Contents)->generalize());; populate_derived(); }

// Function implementations for IfcRailing
std::optional< ::Ifc2x3::IfcRailingTypeEnum::Value > Ifc2x3::IfcRailing::PredefinedType() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcRailingTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcRailing::setPredefinedType(const std::optional< ::Ifc2x3::IfcRailingTypeEnum::Value >& v) { if (v) {set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcRailingTypeEnum::Class(), (size_t) *v));} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcRailing::declaration() const { return *((IfcParse::entity*)IFC2X3_types[642]); }
const IfcParse::entity& Ifc2x3::IfcRailing::Class() { return *((IfcParse::entity*)IFC2X3_types[642]); }
// Ifc2x3::IfcRailing::IfcRailing(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcRailing::IfcRailing(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< ::Ifc2x3::IfcRailingTypeEnum::Value > v9_PredefinedType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_PredefinedType) {set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcRailingTypeEnum::Class(),(size_t)*v9_PredefinedType))); }; populate_derived(); }

// Function implementations for IfcRailingType
::Ifc2x3::IfcRailingTypeEnum::Value Ifc2x3::IfcRailingType::PredefinedType() const {  return ::Ifc2x3::IfcRailingTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcRailingType::setPredefinedType(const ::Ifc2x3::IfcRailingTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcRailingTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcRailingType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[643]); }
const IfcParse::entity& Ifc2x3::IfcRailingType::Class() { return *((IfcParse::entity*)IFC2X3_types[643]); }
// Ifc2x3::IfcRailingType::IfcRailingType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcRailingType::IfcRailingType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcRailingTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcRailingTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcRamp
::Ifc2x3::IfcRampTypeEnum::Value Ifc2x3::IfcRamp::ShapeType() const {  return ::Ifc2x3::IfcRampTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcRamp::setShapeType(const ::Ifc2x3::IfcRampTypeEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcRampTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcRamp::declaration() const { return *((IfcParse::entity*)IFC2X3_types[645]); }
const IfcParse::entity& Ifc2x3::IfcRamp::Class() { return *((IfcParse::entity*)IFC2X3_types[645]); }
// Ifc2x3::IfcRamp::IfcRamp(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcRamp::IfcRamp(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcRampTypeEnum::Value v9_ShapeType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcRampTypeEnum::Class(),(size_t)v9_ShapeType)));; populate_derived(); }

// Function implementations for IfcRampFlight


// const IfcParse::entity& Ifc2x3::IfcRampFlight::declaration() const { return *((IfcParse::entity*)IFC2X3_types[646]); }
const IfcParse::entity& Ifc2x3::IfcRampFlight::Class() { return *((IfcParse::entity*)IFC2X3_types[646]); }
// Ifc2x3::IfcRampFlight::IfcRampFlight(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcRampFlight::IfcRampFlight(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcRampFlightType
::Ifc2x3::IfcRampFlightTypeEnum::Value Ifc2x3::IfcRampFlightType::PredefinedType() const {  return ::Ifc2x3::IfcRampFlightTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcRampFlightType::setPredefinedType(const ::Ifc2x3::IfcRampFlightTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcRampFlightTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcRampFlightType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[647]); }
const IfcParse::entity& Ifc2x3::IfcRampFlightType::Class() { return *((IfcParse::entity*)IFC2X3_types[647]); }
// Ifc2x3::IfcRampFlightType::IfcRampFlightType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcRampFlightType::IfcRampFlightType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcRampFlightTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcRampFlightTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcRationalBezierCurve
std::vector< double > /*[2:?]*/ Ifc2x3::IfcRationalBezierCurve::WeightsData() const {  std::vector< double > /*[2:?]*/ v = get_attribute_value(5); return v; }
void Ifc2x3::IfcRationalBezierCurve::setWeightsData(const std::vector< double > /*[2:?]*/& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRationalBezierCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[651]); }
const IfcParse::entity& Ifc2x3::IfcRationalBezierCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[651]); }
// Ifc2x3::IfcRationalBezierCurve::IfcRationalBezierCurve(const std::weak_ptr<InstanceData>& e) : IfcBezierCurve(e) { }
// Ifc2x3::IfcRationalBezierCurve::IfcRationalBezierCurve(int v1_Degree, std::vector< ::Ifc2x3::IfcCartesianPoint > v2_ControlPointsList, ::Ifc2x3::IfcBSplineCurveForm::Value v3_CurveForm, boost::logic::tribool v4_ClosedCurve, boost::logic::tribool v5_SelfIntersect, std::vector< double > /*[2:?]*/ v6_WeightsData) : IfcBezierCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_Degree));set_attribute_value(1, (v2_ControlPointsList)->generalize());set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcBSplineCurveForm::Class(),(size_t)v3_CurveForm)));set_attribute_value(3, (v4_ClosedCurve));set_attribute_value(4, (v5_SelfIntersect));set_attribute_value(5, (v6_WeightsData));; populate_derived(); }

// Function implementations for IfcRectangleHollowProfileDef
double Ifc2x3::IfcRectangleHollowProfileDef::WallThickness() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcRectangleHollowProfileDef::setWallThickness(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
std::optional< double > Ifc2x3::IfcRectangleHollowProfileDef::InnerFilletRadius() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcRectangleHollowProfileDef::setInnerFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcRectangleHollowProfileDef::OuterFilletRadius() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcRectangleHollowProfileDef::setOuterFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcRectangleHollowProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[653]); }
const IfcParse::entity& Ifc2x3::IfcRectangleHollowProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[653]); }
// Ifc2x3::IfcRectangleHollowProfileDef::IfcRectangleHollowProfileDef(const std::weak_ptr<InstanceData>& e) : IfcRectangleProfileDef(e) { }
// Ifc2x3::IfcRectangleHollowProfileDef::IfcRectangleHollowProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_XDim, double v5_YDim, double v6_WallThickness, std::optional< double > v7_InnerFilletRadius, std::optional< double > v8_OuterFilletRadius) : IfcRectangleProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_XDim));set_attribute_value(4, (v5_YDim));set_attribute_value(5, (v6_WallThickness)); if (v7_InnerFilletRadius) {set_attribute_value(6, (*v7_InnerFilletRadius)); } if (v8_OuterFilletRadius) {set_attribute_value(7, (*v8_OuterFilletRadius)); }; populate_derived(); }

// Function implementations for IfcRectangleProfileDef
double Ifc2x3::IfcRectangleProfileDef::XDim() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcRectangleProfileDef::setXDim(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcRectangleProfileDef::YDim() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcRectangleProfileDef::setYDim(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcRectangleProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[654]); }
const IfcParse::entity& Ifc2x3::IfcRectangleProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[654]); }
// Ifc2x3::IfcRectangleProfileDef::IfcRectangleProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcRectangleProfileDef::IfcRectangleProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_XDim, double v5_YDim) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_XDim));set_attribute_value(4, (v5_YDim));; populate_derived(); }

// Function implementations for IfcRectangularPyramid
double Ifc2x3::IfcRectangularPyramid::XLength() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcRectangularPyramid::setXLength(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcRectangularPyramid::YLength() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcRectangularPyramid::setYLength(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcRectangularPyramid::Height() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcRectangularPyramid::setHeight(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcRectangularPyramid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[655]); }
const IfcParse::entity& Ifc2x3::IfcRectangularPyramid::Class() { return *((IfcParse::entity*)IFC2X3_types[655]); }
// Ifc2x3::IfcRectangularPyramid::IfcRectangularPyramid(const std::weak_ptr<InstanceData>& e) : IfcCsgPrimitive3D(e) { }
// Ifc2x3::IfcRectangularPyramid::IfcRectangularPyramid(::Ifc2x3::IfcAxis2Placement3D v1_Position, double v2_XLength, double v3_YLength, double v4_Height) : IfcCsgPrimitive3D(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_Position));set_attribute_value(1, (v2_XLength));set_attribute_value(2, (v3_YLength));set_attribute_value(3, (v4_Height));; populate_derived(); }

// Function implementations for IfcRectangularTrimmedSurface
::Ifc2x3::IfcSurface Ifc2x3::IfcRectangularTrimmedSurface::BasisSurface() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcSurface>(); }
void Ifc2x3::IfcRectangularTrimmedSurface::setBasisSurface(const ::Ifc2x3::IfcSurface& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcRectangularTrimmedSurface::U1() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcRectangularTrimmedSurface::setU1(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcRectangularTrimmedSurface::V1() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcRectangularTrimmedSurface::setV1(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcRectangularTrimmedSurface::U2() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcRectangularTrimmedSurface::setU2(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcRectangularTrimmedSurface::V2() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcRectangularTrimmedSurface::setV2(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
bool Ifc2x3::IfcRectangularTrimmedSurface::Usense() const {  bool v = get_attribute_value(5); return v; }
void Ifc2x3::IfcRectangularTrimmedSurface::setUsense(const bool& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
bool Ifc2x3::IfcRectangularTrimmedSurface::Vsense() const {  bool v = get_attribute_value(6); return v; }
void Ifc2x3::IfcRectangularTrimmedSurface::setVsense(const bool& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRectangularTrimmedSurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[656]); }
const IfcParse::entity& Ifc2x3::IfcRectangularTrimmedSurface::Class() { return *((IfcParse::entity*)IFC2X3_types[656]); }
// Ifc2x3::IfcRectangularTrimmedSurface::IfcRectangularTrimmedSurface(const std::weak_ptr<InstanceData>& e) : IfcBoundedSurface(e) { }
// Ifc2x3::IfcRectangularTrimmedSurface::IfcRectangularTrimmedSurface(::Ifc2x3::IfcSurface v1_BasisSurface, double v2_U1, double v3_V1, double v4_U2, double v5_V2, bool v6_Usense, bool v7_Vsense) : IfcBoundedSurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_BasisSurface));set_attribute_value(1, (v2_U1));set_attribute_value(2, (v3_V1));set_attribute_value(3, (v4_U2));set_attribute_value(4, (v5_V2));set_attribute_value(5, (v6_Usense));set_attribute_value(6, (v7_Vsense));; populate_derived(); }

// Function implementations for IfcReferencesValueDocument
::Ifc2x3::IfcDocumentSelect Ifc2x3::IfcReferencesValueDocument::ReferencedDocument() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcDocumentSelect>(); }
void Ifc2x3::IfcReferencesValueDocument::setReferencedDocument(const ::Ifc2x3::IfcDocumentSelect& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcAppliedValue > Ifc2x3::IfcReferencesValueDocument::ReferencingValues() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcAppliedValue>(es); }
void Ifc2x3::IfcReferencesValueDocument::setReferencingValues(const std::vector< ::Ifc2x3::IfcAppliedValue >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcReferencesValueDocument::Name() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcReferencesValueDocument::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::string > Ifc2x3::IfcReferencesValueDocument::Description() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcReferencesValueDocument::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcReferencesValueDocument::declaration() const { return *((IfcParse::entity*)IFC2X3_types[657]); }
const IfcParse::entity& Ifc2x3::IfcReferencesValueDocument::Class() { return *((IfcParse::entity*)IFC2X3_types[657]); }
// Ifc2x3::IfcReferencesValueDocument::IfcReferencesValueDocument(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcReferencesValueDocument::IfcReferencesValueDocument(::Ifc2x3::IfcDocumentSelect v1_ReferencedDocument, std::vector< ::Ifc2x3::IfcAppliedValue > v2_ReferencingValues, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ReferencedDocument));set_attribute_value(1, (v2_ReferencingValues)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcRegularTimeSeries
double Ifc2x3::IfcRegularTimeSeries::TimeStep() const {  double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcRegularTimeSeries::setTimeStep(const double& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
std::vector< ::Ifc2x3::IfcTimeSeriesValue > Ifc2x3::IfcRegularTimeSeries::Values() const {  std::vector<express::Base> es = get_attribute_value(9); return cast_vector<::Ifc2x3::IfcTimeSeriesValue>(es); }
void Ifc2x3::IfcRegularTimeSeries::setValues(const std::vector< ::Ifc2x3::IfcTimeSeriesValue >& v) { set_attribute_value(9, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcRegularTimeSeries::declaration() const { return *((IfcParse::entity*)IFC2X3_types[659]); }
const IfcParse::entity& Ifc2x3::IfcRegularTimeSeries::Class() { return *((IfcParse::entity*)IFC2X3_types[659]); }
// Ifc2x3::IfcRegularTimeSeries::IfcRegularTimeSeries(const std::weak_ptr<InstanceData>& e) : IfcTimeSeries(e) { }
// Ifc2x3::IfcRegularTimeSeries::IfcRegularTimeSeries(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcDateTimeSelect v3_StartTime, ::Ifc2x3::IfcDateTimeSelect v4_EndTime, ::Ifc2x3::IfcTimeSeriesDataTypeEnum::Value v5_TimeSeriesDataType, ::Ifc2x3::IfcDataOriginEnum::Value v6_DataOrigin, std::optional< std::string > v7_UserDefinedDataOrigin, ::Ifc2x3::IfcUnit v8_Unit, double v9_TimeStep, std::vector< ::Ifc2x3::IfcTimeSeriesValue > v10_Values) : IfcTimeSeries(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_StartTime));set_attribute_value(3, (v4_EndTime));set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcTimeSeriesDataTypeEnum::Class(),(size_t)v5_TimeSeriesDataType)));set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcDataOriginEnum::Class(),(size_t)v6_DataOrigin))); if (v7_UserDefinedDataOrigin) {set_attribute_value(6, (*v7_UserDefinedDataOrigin)); } if (v8_Unit) {set_attribute_value(7, (*v8_Unit)); }set_attribute_value(8, (v9_TimeStep));set_attribute_value(9, (v10_Values)->generalize());; populate_derived(); }

// Function implementations for IfcReinforcementBarProperties
double Ifc2x3::IfcReinforcementBarProperties::TotalCrossSectionArea() const {  double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcReinforcementBarProperties::setTotalCrossSectionArea(const double& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::string Ifc2x3::IfcReinforcementBarProperties::SteelGrade() const {  std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcReinforcementBarProperties::setSteelGrade(const std::string& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< ::Ifc2x3::IfcReinforcingBarSurfaceEnum::Value > Ifc2x3::IfcReinforcementBarProperties::BarSurface() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcReinforcingBarSurfaceEnum::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcReinforcementBarProperties::setBarSurface(const std::optional< ::Ifc2x3::IfcReinforcingBarSurfaceEnum::Value >& v) { if (v) {set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcReinforcingBarSurfaceEnum::Class(), (size_t) *v));} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcReinforcementBarProperties::EffectiveDepth() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcReinforcementBarProperties::setEffectiveDepth(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcReinforcementBarProperties::NominalBarDiameter() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcReinforcementBarProperties::setNominalBarDiameter(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcReinforcementBarProperties::BarCount() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcReinforcementBarProperties::setBarCount(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }


// const IfcParse::entity& Ifc2x3::IfcReinforcementBarProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[660]); }
const IfcParse::entity& Ifc2x3::IfcReinforcementBarProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[660]); }
// Ifc2x3::IfcReinforcementBarProperties::IfcReinforcementBarProperties(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcReinforcementBarProperties::IfcReinforcementBarProperties(double v1_TotalCrossSectionArea, std::string v2_SteelGrade, std::optional< ::Ifc2x3::IfcReinforcingBarSurfaceEnum::Value > v3_BarSurface, std::optional< double > v4_EffectiveDepth, std::optional< double > v5_NominalBarDiameter, std::optional< double > v6_BarCount) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_TotalCrossSectionArea));set_attribute_value(1, (v2_SteelGrade)); if (v3_BarSurface) {set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcReinforcingBarSurfaceEnum::Class(),(size_t)*v3_BarSurface))); } if (v4_EffectiveDepth) {set_attribute_value(3, (*v4_EffectiveDepth)); } if (v5_NominalBarDiameter) {set_attribute_value(4, (*v5_NominalBarDiameter)); } if (v6_BarCount) {set_attribute_value(5, (*v6_BarCount)); }; populate_derived(); }

// Function implementations for IfcReinforcementDefinitionProperties
std::optional< std::string > Ifc2x3::IfcReinforcementDefinitionProperties::DefinitionType() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcReinforcementDefinitionProperties::setDefinitionType(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::vector< ::Ifc2x3::IfcSectionReinforcementProperties > Ifc2x3::IfcReinforcementDefinitionProperties::ReinforcementSectionDefinitions() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcSectionReinforcementProperties>(es); }
void Ifc2x3::IfcReinforcementDefinitionProperties::setReinforcementSectionDefinitions(const std::vector< ::Ifc2x3::IfcSectionReinforcementProperties >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcReinforcementDefinitionProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[661]); }
const IfcParse::entity& Ifc2x3::IfcReinforcementDefinitionProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[661]); }
// Ifc2x3::IfcReinforcementDefinitionProperties::IfcReinforcementDefinitionProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcReinforcementDefinitionProperties::IfcReinforcementDefinitionProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_DefinitionType, std::vector< ::Ifc2x3::IfcSectionReinforcementProperties > v6_ReinforcementSectionDefinitions) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_DefinitionType) {set_attribute_value(4, (*v5_DefinitionType)); }set_attribute_value(5, (v6_ReinforcementSectionDefinitions)->generalize());; populate_derived(); }

// Function implementations for IfcReinforcingBar
double Ifc2x3::IfcReinforcingBar::NominalDiameter() const {  double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcReinforcingBar::setNominalDiameter(const double& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
double Ifc2x3::IfcReinforcingBar::CrossSectionArea() const {  double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcReinforcingBar::setCrossSectionArea(const double& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
std::optional< double > Ifc2x3::IfcReinforcingBar::BarLength() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcReinforcingBar::setBarLength(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
::Ifc2x3::IfcReinforcingBarRoleEnum::Value Ifc2x3::IfcReinforcingBar::BarRole() const {  return ::Ifc2x3::IfcReinforcingBarRoleEnum::FromString(get_attribute_value(12)); }
void Ifc2x3::IfcReinforcingBar::setBarRole(const ::Ifc2x3::IfcReinforcingBarRoleEnum::Value& v) { set_attribute_value(12, EnumerationReference(&::Ifc2x3::IfcReinforcingBarRoleEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(12); }
std::optional< ::Ifc2x3::IfcReinforcingBarSurfaceEnum::Value > Ifc2x3::IfcReinforcingBar::BarSurface() const { if(get_attribute_value(13).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcReinforcingBarSurfaceEnum::FromString(get_attribute_value(13)); }
void Ifc2x3::IfcReinforcingBar::setBarSurface(const std::optional< ::Ifc2x3::IfcReinforcingBarSurfaceEnum::Value >& v) { if (v) {set_attribute_value(13, EnumerationReference(&::Ifc2x3::IfcReinforcingBarSurfaceEnum::Class(), (size_t) *v));} else {unset_attribute_value(13);} }


// const IfcParse::entity& Ifc2x3::IfcReinforcingBar::declaration() const { return *((IfcParse::entity*)IFC2X3_types[662]); }
const IfcParse::entity& Ifc2x3::IfcReinforcingBar::Class() { return *((IfcParse::entity*)IFC2X3_types[662]); }
// Ifc2x3::IfcReinforcingBar::IfcReinforcingBar(const std::weak_ptr<InstanceData>& e) : IfcReinforcingElement(e) { }
// Ifc2x3::IfcReinforcingBar::IfcReinforcingBar(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< std::string > v9_SteelGrade, double v10_NominalDiameter, double v11_CrossSectionArea, std::optional< double > v12_BarLength, ::Ifc2x3::IfcReinforcingBarRoleEnum::Value v13_BarRole, std::optional< ::Ifc2x3::IfcReinforcingBarSurfaceEnum::Value > v14_BarSurface) : IfcReinforcingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(14))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_SteelGrade) {set_attribute_value(8, (*v9_SteelGrade)); }set_attribute_value(9, (v10_NominalDiameter));set_attribute_value(10, (v11_CrossSectionArea)); if (v12_BarLength) {set_attribute_value(11, (*v12_BarLength)); }set_attribute_value(12, (EnumerationReference(&::Ifc2x3::IfcReinforcingBarRoleEnum::Class(),(size_t)v13_BarRole))); if (v14_BarSurface) {set_attribute_value(13, (EnumerationReference(&::Ifc2x3::IfcReinforcingBarSurfaceEnum::Class(),(size_t)*v14_BarSurface))); }; populate_derived(); }

// Function implementations for IfcReinforcingElement
std::optional< std::string > Ifc2x3::IfcReinforcingElement::SteelGrade() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcReinforcingElement::setSteelGrade(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcReinforcingElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[665]); }
const IfcParse::entity& Ifc2x3::IfcReinforcingElement::Class() { return *((IfcParse::entity*)IFC2X3_types[665]); }
// Ifc2x3::IfcReinforcingElement::IfcReinforcingElement(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementComponent(e) { }
// Ifc2x3::IfcReinforcingElement::IfcReinforcingElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< std::string > v9_SteelGrade) : IfcBuildingElementComponent(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_SteelGrade) {set_attribute_value(8, (*v9_SteelGrade)); }; populate_derived(); }

// Function implementations for IfcReinforcingMesh
std::optional< double > Ifc2x3::IfcReinforcingMesh::MeshLength() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcReinforcingMesh::setMeshLength(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcReinforcingMesh::MeshWidth() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcReinforcingMesh::setMeshWidth(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
double Ifc2x3::IfcReinforcingMesh::LongitudinalBarNominalDiameter() const {  double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcReinforcingMesh::setLongitudinalBarNominalDiameter(const double& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
double Ifc2x3::IfcReinforcingMesh::TransverseBarNominalDiameter() const {  double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcReinforcingMesh::setTransverseBarNominalDiameter(const double& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
double Ifc2x3::IfcReinforcingMesh::LongitudinalBarCrossSectionArea() const {  double v = get_attribute_value(13); return v; }
void Ifc2x3::IfcReinforcingMesh::setLongitudinalBarCrossSectionArea(const double& v) { set_attribute_value(13, v);if constexpr (false)unset_attribute_value(13); }
double Ifc2x3::IfcReinforcingMesh::TransverseBarCrossSectionArea() const {  double v = get_attribute_value(14); return v; }
void Ifc2x3::IfcReinforcingMesh::setTransverseBarCrossSectionArea(const double& v) { set_attribute_value(14, v);if constexpr (false)unset_attribute_value(14); }
double Ifc2x3::IfcReinforcingMesh::LongitudinalBarSpacing() const {  double v = get_attribute_value(15); return v; }
void Ifc2x3::IfcReinforcingMesh::setLongitudinalBarSpacing(const double& v) { set_attribute_value(15, v);if constexpr (false)unset_attribute_value(15); }
double Ifc2x3::IfcReinforcingMesh::TransverseBarSpacing() const {  double v = get_attribute_value(16); return v; }
void Ifc2x3::IfcReinforcingMesh::setTransverseBarSpacing(const double& v) { set_attribute_value(16, v);if constexpr (false)unset_attribute_value(16); }


// const IfcParse::entity& Ifc2x3::IfcReinforcingMesh::declaration() const { return *((IfcParse::entity*)IFC2X3_types[666]); }
const IfcParse::entity& Ifc2x3::IfcReinforcingMesh::Class() { return *((IfcParse::entity*)IFC2X3_types[666]); }
// Ifc2x3::IfcReinforcingMesh::IfcReinforcingMesh(const std::weak_ptr<InstanceData>& e) : IfcReinforcingElement(e) { }
// Ifc2x3::IfcReinforcingMesh::IfcReinforcingMesh(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< std::string > v9_SteelGrade, std::optional< double > v10_MeshLength, std::optional< double > v11_MeshWidth, double v12_LongitudinalBarNominalDiameter, double v13_TransverseBarNominalDiameter, double v14_LongitudinalBarCrossSectionArea, double v15_TransverseBarCrossSectionArea, double v16_LongitudinalBarSpacing, double v17_TransverseBarSpacing) : IfcReinforcingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(17))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_SteelGrade) {set_attribute_value(8, (*v9_SteelGrade)); } if (v10_MeshLength) {set_attribute_value(9, (*v10_MeshLength)); } if (v11_MeshWidth) {set_attribute_value(10, (*v11_MeshWidth)); }set_attribute_value(11, (v12_LongitudinalBarNominalDiameter));set_attribute_value(12, (v13_TransverseBarNominalDiameter));set_attribute_value(13, (v14_LongitudinalBarCrossSectionArea));set_attribute_value(14, (v15_TransverseBarCrossSectionArea));set_attribute_value(15, (v16_LongitudinalBarSpacing));set_attribute_value(16, (v17_TransverseBarSpacing));; populate_derived(); }

// Function implementations for IfcRelAggregates


// const IfcParse::entity& Ifc2x3::IfcRelAggregates::declaration() const { return *((IfcParse::entity*)IFC2X3_types[667]); }
const IfcParse::entity& Ifc2x3::IfcRelAggregates::Class() { return *((IfcParse::entity*)IFC2X3_types[667]); }
// Ifc2x3::IfcRelAggregates::IfcRelAggregates(const std::weak_ptr<InstanceData>& e) : IfcRelDecomposes(e) { }
// Ifc2x3::IfcRelAggregates::IfcRelAggregates(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcObjectDefinition v5_RelatingObject, std::vector< ::Ifc2x3::IfcObjectDefinition > v6_RelatedObjects) : IfcRelDecomposes(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingObject));set_attribute_value(5, (v6_RelatedObjects)->generalize());; populate_derived(); }

// Function implementations for IfcRelAssigns
std::vector< ::Ifc2x3::IfcObjectDefinition > Ifc2x3::IfcRelAssigns::RelatedObjects() const {  std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcObjectDefinition>(es); }
void Ifc2x3::IfcRelAssigns::setRelatedObjects(const std::vector< ::Ifc2x3::IfcObjectDefinition >& v) { set_attribute_value(4, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(4); }
std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > Ifc2x3::IfcRelAssigns::RelatedObjectsType() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcObjectTypeEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcRelAssigns::setRelatedObjectsType(const std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value >& v) { if (v) {set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(), (size_t) *v));} else {unset_attribute_value(5);} }


// const IfcParse::entity& Ifc2x3::IfcRelAssigns::declaration() const { return *((IfcParse::entity*)IFC2X3_types[668]); }
const IfcParse::entity& Ifc2x3::IfcRelAssigns::Class() { return *((IfcParse::entity*)IFC2X3_types[668]); }
// Ifc2x3::IfcRelAssigns::IfcRelAssigns(const std::weak_ptr<InstanceData>& e) : IfcRelationship(e) { }
// Ifc2x3::IfcRelAssigns::IfcRelAssigns(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType) : IfcRelationship(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }; populate_derived(); }

// Function implementations for IfcRelAssignsTasks
::Ifc2x3::IfcScheduleTimeControl Ifc2x3::IfcRelAssignsTasks::TimeForTask() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcScheduleTimeControl{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcScheduleTimeControl>(); }
void Ifc2x3::IfcRelAssignsTasks::setTimeForTask(const ::Ifc2x3::IfcScheduleTimeControl& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcRelAssignsTasks::declaration() const { return *((IfcParse::entity*)IFC2X3_types[669]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsTasks::Class() { return *((IfcParse::entity*)IFC2X3_types[669]); }
// Ifc2x3::IfcRelAssignsTasks::IfcRelAssignsTasks(const std::weak_ptr<InstanceData>& e) : IfcRelAssignsToControl(e) { }
// Ifc2x3::IfcRelAssignsTasks::IfcRelAssignsTasks(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcControl v7_RelatingControl, ::Ifc2x3::IfcScheduleTimeControl v8_TimeForTask) : IfcRelAssignsToControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingControl)); if (v8_TimeForTask) {set_attribute_value(7, (*v8_TimeForTask)); }; populate_derived(); }

// Function implementations for IfcRelAssignsToActor
::Ifc2x3::IfcActor Ifc2x3::IfcRelAssignsToActor::RelatingActor() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcActor>(); }
void Ifc2x3::IfcRelAssignsToActor::setRelatingActor(const ::Ifc2x3::IfcActor& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcActorRole Ifc2x3::IfcRelAssignsToActor::ActingRole() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcActorRole{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcActorRole>(); }
void Ifc2x3::IfcRelAssignsToActor::setActingRole(const ::Ifc2x3::IfcActorRole& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcRelAssignsToActor::declaration() const { return *((IfcParse::entity*)IFC2X3_types[670]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsToActor::Class() { return *((IfcParse::entity*)IFC2X3_types[670]); }
// Ifc2x3::IfcRelAssignsToActor::IfcRelAssignsToActor(const std::weak_ptr<InstanceData>& e) : IfcRelAssigns(e) { }
// Ifc2x3::IfcRelAssignsToActor::IfcRelAssignsToActor(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcActor v7_RelatingActor, ::Ifc2x3::IfcActorRole v8_ActingRole) : IfcRelAssigns(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingActor)); if (v8_ActingRole) {set_attribute_value(7, (*v8_ActingRole)); }; populate_derived(); }

// Function implementations for IfcRelAssignsToControl
::Ifc2x3::IfcControl Ifc2x3::IfcRelAssignsToControl::RelatingControl() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcControl>(); }
void Ifc2x3::IfcRelAssignsToControl::setRelatingControl(const ::Ifc2x3::IfcControl& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelAssignsToControl::declaration() const { return *((IfcParse::entity*)IFC2X3_types[671]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsToControl::Class() { return *((IfcParse::entity*)IFC2X3_types[671]); }
// Ifc2x3::IfcRelAssignsToControl::IfcRelAssignsToControl(const std::weak_ptr<InstanceData>& e) : IfcRelAssigns(e) { }
// Ifc2x3::IfcRelAssignsToControl::IfcRelAssignsToControl(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcControl v7_RelatingControl) : IfcRelAssigns(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingControl));; populate_derived(); }

// Function implementations for IfcRelAssignsToGroup
::Ifc2x3::IfcGroup Ifc2x3::IfcRelAssignsToGroup::RelatingGroup() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcGroup>(); }
void Ifc2x3::IfcRelAssignsToGroup::setRelatingGroup(const ::Ifc2x3::IfcGroup& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelAssignsToGroup::declaration() const { return *((IfcParse::entity*)IFC2X3_types[672]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsToGroup::Class() { return *((IfcParse::entity*)IFC2X3_types[672]); }
// Ifc2x3::IfcRelAssignsToGroup::IfcRelAssignsToGroup(const std::weak_ptr<InstanceData>& e) : IfcRelAssigns(e) { }
// Ifc2x3::IfcRelAssignsToGroup::IfcRelAssignsToGroup(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcGroup v7_RelatingGroup) : IfcRelAssigns(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingGroup));; populate_derived(); }

// Function implementations for IfcRelAssignsToProcess
::Ifc2x3::IfcProcess Ifc2x3::IfcRelAssignsToProcess::RelatingProcess() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcProcess>(); }
void Ifc2x3::IfcRelAssignsToProcess::setRelatingProcess(const ::Ifc2x3::IfcProcess& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcMeasureWithUnit Ifc2x3::IfcRelAssignsToProcess::QuantityInProcess() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcMeasureWithUnit{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcMeasureWithUnit>(); }
void Ifc2x3::IfcRelAssignsToProcess::setQuantityInProcess(const ::Ifc2x3::IfcMeasureWithUnit& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcRelAssignsToProcess::declaration() const { return *((IfcParse::entity*)IFC2X3_types[673]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsToProcess::Class() { return *((IfcParse::entity*)IFC2X3_types[673]); }
// Ifc2x3::IfcRelAssignsToProcess::IfcRelAssignsToProcess(const std::weak_ptr<InstanceData>& e) : IfcRelAssigns(e) { }
// Ifc2x3::IfcRelAssignsToProcess::IfcRelAssignsToProcess(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcProcess v7_RelatingProcess, ::Ifc2x3::IfcMeasureWithUnit v8_QuantityInProcess) : IfcRelAssigns(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingProcess)); if (v8_QuantityInProcess) {set_attribute_value(7, (*v8_QuantityInProcess)); }; populate_derived(); }

// Function implementations for IfcRelAssignsToProduct
::Ifc2x3::IfcProduct Ifc2x3::IfcRelAssignsToProduct::RelatingProduct() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcProduct>(); }
void Ifc2x3::IfcRelAssignsToProduct::setRelatingProduct(const ::Ifc2x3::IfcProduct& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelAssignsToProduct::declaration() const { return *((IfcParse::entity*)IFC2X3_types[674]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsToProduct::Class() { return *((IfcParse::entity*)IFC2X3_types[674]); }
// Ifc2x3::IfcRelAssignsToProduct::IfcRelAssignsToProduct(const std::weak_ptr<InstanceData>& e) : IfcRelAssigns(e) { }
// Ifc2x3::IfcRelAssignsToProduct::IfcRelAssignsToProduct(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcProduct v7_RelatingProduct) : IfcRelAssigns(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingProduct));; populate_derived(); }

// Function implementations for IfcRelAssignsToProjectOrder


// const IfcParse::entity& Ifc2x3::IfcRelAssignsToProjectOrder::declaration() const { return *((IfcParse::entity*)IFC2X3_types[675]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsToProjectOrder::Class() { return *((IfcParse::entity*)IFC2X3_types[675]); }
// Ifc2x3::IfcRelAssignsToProjectOrder::IfcRelAssignsToProjectOrder(const std::weak_ptr<InstanceData>& e) : IfcRelAssignsToControl(e) { }
// Ifc2x3::IfcRelAssignsToProjectOrder::IfcRelAssignsToProjectOrder(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcControl v7_RelatingControl) : IfcRelAssignsToControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingControl));; populate_derived(); }

// Function implementations for IfcRelAssignsToResource
::Ifc2x3::IfcResource Ifc2x3::IfcRelAssignsToResource::RelatingResource() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcResource>(); }
void Ifc2x3::IfcRelAssignsToResource::setRelatingResource(const ::Ifc2x3::IfcResource& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelAssignsToResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[676]); }
const IfcParse::entity& Ifc2x3::IfcRelAssignsToResource::Class() { return *((IfcParse::entity*)IFC2X3_types[676]); }
// Ifc2x3::IfcRelAssignsToResource::IfcRelAssignsToResource(const std::weak_ptr<InstanceData>& e) : IfcRelAssigns(e) { }
// Ifc2x3::IfcRelAssignsToResource::IfcRelAssignsToResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcResource v7_RelatingResource) : IfcRelAssigns(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingResource));; populate_derived(); }

// Function implementations for IfcRelAssociates
std::vector< ::Ifc2x3::IfcRoot > Ifc2x3::IfcRelAssociates::RelatedObjects() const {  std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcRoot>(es); }
void Ifc2x3::IfcRelAssociates::setRelatedObjects(const std::vector< ::Ifc2x3::IfcRoot >& v) { set_attribute_value(4, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociates::declaration() const { return *((IfcParse::entity*)IFC2X3_types[677]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociates::Class() { return *((IfcParse::entity*)IFC2X3_types[677]); }
// Ifc2x3::IfcRelAssociates::IfcRelAssociates(const std::weak_ptr<InstanceData>& e) : IfcRelationship(e) { }
// Ifc2x3::IfcRelAssociates::IfcRelAssociates(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects) : IfcRelationship(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());; populate_derived(); }

// Function implementations for IfcRelAssociatesAppliedValue
::Ifc2x3::IfcAppliedValue Ifc2x3::IfcRelAssociatesAppliedValue::RelatingAppliedValue() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcAppliedValue>(); }
void Ifc2x3::IfcRelAssociatesAppliedValue::setRelatingAppliedValue(const ::Ifc2x3::IfcAppliedValue& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesAppliedValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[678]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesAppliedValue::Class() { return *((IfcParse::entity*)IFC2X3_types[678]); }
// Ifc2x3::IfcRelAssociatesAppliedValue::IfcRelAssociatesAppliedValue(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesAppliedValue::IfcRelAssociatesAppliedValue(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, ::Ifc2x3::IfcAppliedValue v6_RelatingAppliedValue) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingAppliedValue));; populate_derived(); }

// Function implementations for IfcRelAssociatesApproval
::Ifc2x3::IfcApproval Ifc2x3::IfcRelAssociatesApproval::RelatingApproval() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcApproval>(); }
void Ifc2x3::IfcRelAssociatesApproval::setRelatingApproval(const ::Ifc2x3::IfcApproval& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesApproval::declaration() const { return *((IfcParse::entity*)IFC2X3_types[679]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesApproval::Class() { return *((IfcParse::entity*)IFC2X3_types[679]); }
// Ifc2x3::IfcRelAssociatesApproval::IfcRelAssociatesApproval(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesApproval::IfcRelAssociatesApproval(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, ::Ifc2x3::IfcApproval v6_RelatingApproval) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingApproval));; populate_derived(); }

// Function implementations for IfcRelAssociatesClassification
::Ifc2x3::IfcClassificationNotationSelect Ifc2x3::IfcRelAssociatesClassification::RelatingClassification() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcClassificationNotationSelect>(); }
void Ifc2x3::IfcRelAssociatesClassification::setRelatingClassification(const ::Ifc2x3::IfcClassificationNotationSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesClassification::declaration() const { return *((IfcParse::entity*)IFC2X3_types[680]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesClassification::Class() { return *((IfcParse::entity*)IFC2X3_types[680]); }
// Ifc2x3::IfcRelAssociatesClassification::IfcRelAssociatesClassification(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesClassification::IfcRelAssociatesClassification(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, ::Ifc2x3::IfcClassificationNotationSelect v6_RelatingClassification) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingClassification));; populate_derived(); }

// Function implementations for IfcRelAssociatesConstraint
std::string Ifc2x3::IfcRelAssociatesConstraint::Intent() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcRelAssociatesConstraint::setIntent(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcConstraint Ifc2x3::IfcRelAssociatesConstraint::RelatingConstraint() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcConstraint>(); }
void Ifc2x3::IfcRelAssociatesConstraint::setRelatingConstraint(const ::Ifc2x3::IfcConstraint& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesConstraint::declaration() const { return *((IfcParse::entity*)IFC2X3_types[681]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesConstraint::Class() { return *((IfcParse::entity*)IFC2X3_types[681]); }
// Ifc2x3::IfcRelAssociatesConstraint::IfcRelAssociatesConstraint(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesConstraint::IfcRelAssociatesConstraint(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, std::string v6_Intent, ::Ifc2x3::IfcConstraint v7_RelatingConstraint) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_Intent));set_attribute_value(6, (v7_RelatingConstraint));; populate_derived(); }

// Function implementations for IfcRelAssociatesDocument
::Ifc2x3::IfcDocumentSelect Ifc2x3::IfcRelAssociatesDocument::RelatingDocument() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcDocumentSelect>(); }
void Ifc2x3::IfcRelAssociatesDocument::setRelatingDocument(const ::Ifc2x3::IfcDocumentSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesDocument::declaration() const { return *((IfcParse::entity*)IFC2X3_types[682]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesDocument::Class() { return *((IfcParse::entity*)IFC2X3_types[682]); }
// Ifc2x3::IfcRelAssociatesDocument::IfcRelAssociatesDocument(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesDocument::IfcRelAssociatesDocument(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, ::Ifc2x3::IfcDocumentSelect v6_RelatingDocument) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingDocument));; populate_derived(); }

// Function implementations for IfcRelAssociatesLibrary
::Ifc2x3::IfcLibrarySelect Ifc2x3::IfcRelAssociatesLibrary::RelatingLibrary() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcLibrarySelect>(); }
void Ifc2x3::IfcRelAssociatesLibrary::setRelatingLibrary(const ::Ifc2x3::IfcLibrarySelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesLibrary::declaration() const { return *((IfcParse::entity*)IFC2X3_types[683]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesLibrary::Class() { return *((IfcParse::entity*)IFC2X3_types[683]); }
// Ifc2x3::IfcRelAssociatesLibrary::IfcRelAssociatesLibrary(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesLibrary::IfcRelAssociatesLibrary(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, ::Ifc2x3::IfcLibrarySelect v6_RelatingLibrary) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingLibrary));; populate_derived(); }

// Function implementations for IfcRelAssociatesMaterial
::Ifc2x3::IfcMaterialSelect Ifc2x3::IfcRelAssociatesMaterial::RelatingMaterial() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcMaterialSelect>(); }
void Ifc2x3::IfcRelAssociatesMaterial::setRelatingMaterial(const ::Ifc2x3::IfcMaterialSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesMaterial::declaration() const { return *((IfcParse::entity*)IFC2X3_types[684]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesMaterial::Class() { return *((IfcParse::entity*)IFC2X3_types[684]); }
// Ifc2x3::IfcRelAssociatesMaterial::IfcRelAssociatesMaterial(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesMaterial::IfcRelAssociatesMaterial(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, ::Ifc2x3::IfcMaterialSelect v6_RelatingMaterial) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingMaterial));; populate_derived(); }

// Function implementations for IfcRelAssociatesProfileProperties
::Ifc2x3::IfcProfileProperties Ifc2x3::IfcRelAssociatesProfileProperties::RelatingProfileProperties() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcProfileProperties>(); }
void Ifc2x3::IfcRelAssociatesProfileProperties::setRelatingProfileProperties(const ::Ifc2x3::IfcProfileProperties& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcRelAssociatesProfileProperties::ProfileSectionLocation() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcShapeAspect{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcRelAssociatesProfileProperties::setProfileSectionLocation(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcOrientationSelect Ifc2x3::IfcRelAssociatesProfileProperties::ProfileOrientation() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcOrientationSelect{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcOrientationSelect>(); }
void Ifc2x3::IfcRelAssociatesProfileProperties::setProfileOrientation(const ::Ifc2x3::IfcOrientationSelect& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcRelAssociatesProfileProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[685]); }
const IfcParse::entity& Ifc2x3::IfcRelAssociatesProfileProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[685]); }
// Ifc2x3::IfcRelAssociatesProfileProperties::IfcRelAssociatesProfileProperties(const std::weak_ptr<InstanceData>& e) : IfcRelAssociates(e) { }
// Ifc2x3::IfcRelAssociatesProfileProperties::IfcRelAssociatesProfileProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcRoot > v5_RelatedObjects, ::Ifc2x3::IfcProfileProperties v6_RelatingProfileProperties, ::Ifc2x3::IfcShapeAspect v7_ProfileSectionLocation, ::Ifc2x3::IfcOrientationSelect v8_ProfileOrientation) : IfcRelAssociates(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingProfileProperties)); if (v7_ProfileSectionLocation) {set_attribute_value(6, (*v7_ProfileSectionLocation)); } if (v8_ProfileOrientation) {set_attribute_value(7, (*v8_ProfileOrientation)); }; populate_derived(); }

// Function implementations for IfcRelConnects


// const IfcParse::entity& Ifc2x3::IfcRelConnects::declaration() const { return *((IfcParse::entity*)IFC2X3_types[688]); }
const IfcParse::entity& Ifc2x3::IfcRelConnects::Class() { return *((IfcParse::entity*)IFC2X3_types[688]); }
// Ifc2x3::IfcRelConnects::IfcRelConnects(const std::weak_ptr<InstanceData>& e) : IfcRelationship(e) { }
// Ifc2x3::IfcRelConnects::IfcRelConnects(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : IfcRelationship(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcRelConnectsElements
::Ifc2x3::IfcConnectionGeometry Ifc2x3::IfcRelConnectsElements::ConnectionGeometry() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcConnectionGeometry{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcConnectionGeometry>(); }
void Ifc2x3::IfcRelConnectsElements::setConnectionGeometry(const ::Ifc2x3::IfcConnectionGeometry& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcElement Ifc2x3::IfcRelConnectsElements::RelatingElement() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelConnectsElements::setRelatingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcElement Ifc2x3::IfcRelConnectsElements::RelatedElement() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelConnectsElements::setRelatedElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsElements::declaration() const { return *((IfcParse::entity*)IFC2X3_types[689]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsElements::Class() { return *((IfcParse::entity*)IFC2X3_types[689]); }
// Ifc2x3::IfcRelConnectsElements::IfcRelConnectsElements(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelConnectsElements::IfcRelConnectsElements(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcConnectionGeometry v5_ConnectionGeometry, ::Ifc2x3::IfcElement v6_RelatingElement, ::Ifc2x3::IfcElement v7_RelatedElement) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ConnectionGeometry) {set_attribute_value(4, (*v5_ConnectionGeometry)); }set_attribute_value(5, (v6_RelatingElement));set_attribute_value(6, (v7_RelatedElement));; populate_derived(); }

// Function implementations for IfcRelConnectsPathElements
std::vector< int > /*[0:?]*/ Ifc2x3::IfcRelConnectsPathElements::RelatingPriorities() const {  std::vector< int > /*[0:?]*/ v = get_attribute_value(7); return v; }
void Ifc2x3::IfcRelConnectsPathElements::setRelatingPriorities(const std::vector< int > /*[0:?]*/& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
std::vector< int > /*[0:?]*/ Ifc2x3::IfcRelConnectsPathElements::RelatedPriorities() const {  std::vector< int > /*[0:?]*/ v = get_attribute_value(8); return v; }
void Ifc2x3::IfcRelConnectsPathElements::setRelatedPriorities(const std::vector< int > /*[0:?]*/& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcConnectionTypeEnum::Value Ifc2x3::IfcRelConnectsPathElements::RelatedConnectionType() const {  return ::Ifc2x3::IfcConnectionTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcRelConnectsPathElements::setRelatedConnectionType(const ::Ifc2x3::IfcConnectionTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcConnectionTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }
::Ifc2x3::IfcConnectionTypeEnum::Value Ifc2x3::IfcRelConnectsPathElements::RelatingConnectionType() const {  return ::Ifc2x3::IfcConnectionTypeEnum::FromString(get_attribute_value(10)); }
void Ifc2x3::IfcRelConnectsPathElements::setRelatingConnectionType(const ::Ifc2x3::IfcConnectionTypeEnum::Value& v) { set_attribute_value(10, EnumerationReference(&::Ifc2x3::IfcConnectionTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(10); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsPathElements::declaration() const { return *((IfcParse::entity*)IFC2X3_types[690]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsPathElements::Class() { return *((IfcParse::entity*)IFC2X3_types[690]); }
// Ifc2x3::IfcRelConnectsPathElements::IfcRelConnectsPathElements(const std::weak_ptr<InstanceData>& e) : IfcRelConnectsElements(e) { }
// Ifc2x3::IfcRelConnectsPathElements::IfcRelConnectsPathElements(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcConnectionGeometry v5_ConnectionGeometry, ::Ifc2x3::IfcElement v6_RelatingElement, ::Ifc2x3::IfcElement v7_RelatedElement, std::vector< int > /*[0:?]*/ v8_RelatingPriorities, std::vector< int > /*[0:?]*/ v9_RelatedPriorities, ::Ifc2x3::IfcConnectionTypeEnum::Value v10_RelatedConnectionType, ::Ifc2x3::IfcConnectionTypeEnum::Value v11_RelatingConnectionType) : IfcRelConnectsElements(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ConnectionGeometry) {set_attribute_value(4, (*v5_ConnectionGeometry)); }set_attribute_value(5, (v6_RelatingElement));set_attribute_value(6, (v7_RelatedElement));set_attribute_value(7, (v8_RelatingPriorities));set_attribute_value(8, (v9_RelatedPriorities));set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcConnectionTypeEnum::Class(),(size_t)v10_RelatedConnectionType)));set_attribute_value(10, (EnumerationReference(&::Ifc2x3::IfcConnectionTypeEnum::Class(),(size_t)v11_RelatingConnectionType)));; populate_derived(); }

// Function implementations for IfcRelConnectsPortToElement
::Ifc2x3::IfcPort Ifc2x3::IfcRelConnectsPortToElement::RelatingPort() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcPort>(); }
void Ifc2x3::IfcRelConnectsPortToElement::setRelatingPort(const ::Ifc2x3::IfcPort& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcElement Ifc2x3::IfcRelConnectsPortToElement::RelatedElement() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelConnectsPortToElement::setRelatedElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsPortToElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[692]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsPortToElement::Class() { return *((IfcParse::entity*)IFC2X3_types[692]); }
// Ifc2x3::IfcRelConnectsPortToElement::IfcRelConnectsPortToElement(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelConnectsPortToElement::IfcRelConnectsPortToElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcPort v5_RelatingPort, ::Ifc2x3::IfcElement v6_RelatedElement) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingPort));set_attribute_value(5, (v6_RelatedElement));; populate_derived(); }

// Function implementations for IfcRelConnectsPorts
::Ifc2x3::IfcPort Ifc2x3::IfcRelConnectsPorts::RelatingPort() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcPort>(); }
void Ifc2x3::IfcRelConnectsPorts::setRelatingPort(const ::Ifc2x3::IfcPort& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcPort Ifc2x3::IfcRelConnectsPorts::RelatedPort() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcPort>(); }
void Ifc2x3::IfcRelConnectsPorts::setRelatedPort(const ::Ifc2x3::IfcPort& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcElement Ifc2x3::IfcRelConnectsPorts::RealizingElement() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcElement{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelConnectsPorts::setRealizingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsPorts::declaration() const { return *((IfcParse::entity*)IFC2X3_types[691]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsPorts::Class() { return *((IfcParse::entity*)IFC2X3_types[691]); }
// Ifc2x3::IfcRelConnectsPorts::IfcRelConnectsPorts(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelConnectsPorts::IfcRelConnectsPorts(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcPort v5_RelatingPort, ::Ifc2x3::IfcPort v6_RelatedPort, ::Ifc2x3::IfcElement v7_RealizingElement) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingPort));set_attribute_value(5, (v6_RelatedPort)); if (v7_RealizingElement) {set_attribute_value(6, (*v7_RealizingElement)); }; populate_derived(); }

// Function implementations for IfcRelConnectsStructuralActivity
::Ifc2x3::IfcStructuralActivityAssignmentSelect Ifc2x3::IfcRelConnectsStructuralActivity::RelatingElement() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcStructuralActivityAssignmentSelect>(); }
void Ifc2x3::IfcRelConnectsStructuralActivity::setRelatingElement(const ::Ifc2x3::IfcStructuralActivityAssignmentSelect& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcStructuralActivity Ifc2x3::IfcRelConnectsStructuralActivity::RelatedStructuralActivity() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcStructuralActivity>(); }
void Ifc2x3::IfcRelConnectsStructuralActivity::setRelatedStructuralActivity(const ::Ifc2x3::IfcStructuralActivity& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsStructuralActivity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[693]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsStructuralActivity::Class() { return *((IfcParse::entity*)IFC2X3_types[693]); }
// Ifc2x3::IfcRelConnectsStructuralActivity::IfcRelConnectsStructuralActivity(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelConnectsStructuralActivity::IfcRelConnectsStructuralActivity(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcStructuralActivityAssignmentSelect v5_RelatingElement, ::Ifc2x3::IfcStructuralActivity v6_RelatedStructuralActivity) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingElement));set_attribute_value(5, (v6_RelatedStructuralActivity));; populate_derived(); }

// Function implementations for IfcRelConnectsStructuralElement
::Ifc2x3::IfcElement Ifc2x3::IfcRelConnectsStructuralElement::RelatingElement() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelConnectsStructuralElement::setRelatingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcStructuralMember Ifc2x3::IfcRelConnectsStructuralElement::RelatedStructuralMember() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcStructuralMember>(); }
void Ifc2x3::IfcRelConnectsStructuralElement::setRelatedStructuralMember(const ::Ifc2x3::IfcStructuralMember& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsStructuralElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[694]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsStructuralElement::Class() { return *((IfcParse::entity*)IFC2X3_types[694]); }
// Ifc2x3::IfcRelConnectsStructuralElement::IfcRelConnectsStructuralElement(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelConnectsStructuralElement::IfcRelConnectsStructuralElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcElement v5_RelatingElement, ::Ifc2x3::IfcStructuralMember v6_RelatedStructuralMember) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingElement));set_attribute_value(5, (v6_RelatedStructuralMember));; populate_derived(); }

// Function implementations for IfcRelConnectsStructuralMember
::Ifc2x3::IfcStructuralMember Ifc2x3::IfcRelConnectsStructuralMember::RelatingStructuralMember() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcStructuralMember>(); }
void Ifc2x3::IfcRelConnectsStructuralMember::setRelatingStructuralMember(const ::Ifc2x3::IfcStructuralMember& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcStructuralConnection Ifc2x3::IfcRelConnectsStructuralMember::RelatedStructuralConnection() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcStructuralConnection>(); }
void Ifc2x3::IfcRelConnectsStructuralMember::setRelatedStructuralConnection(const ::Ifc2x3::IfcStructuralConnection& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcBoundaryCondition Ifc2x3::IfcRelConnectsStructuralMember::AppliedCondition() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcBoundaryCondition{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcBoundaryCondition>(); }
void Ifc2x3::IfcRelConnectsStructuralMember::setAppliedCondition(const ::Ifc2x3::IfcBoundaryCondition& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcStructuralConnectionCondition Ifc2x3::IfcRelConnectsStructuralMember::AdditionalConditions() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcStructuralConnectionCondition{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcStructuralConnectionCondition>(); }
void Ifc2x3::IfcRelConnectsStructuralMember::setAdditionalConditions(const ::Ifc2x3::IfcStructuralConnectionCondition& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
std::optional< double > Ifc2x3::IfcRelConnectsStructuralMember::SupportedLength() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcRelConnectsStructuralMember::setSupportedLength(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcRelConnectsStructuralMember::ConditionCoordinateSystem() const { if(get_attribute_value(9).isNull()) { return ::Ifc2x3::IfcAxis2Placement3D{}; } return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcRelConnectsStructuralMember::setConditionCoordinateSystem(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsStructuralMember::declaration() const { return *((IfcParse::entity*)IFC2X3_types[695]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsStructuralMember::Class() { return *((IfcParse::entity*)IFC2X3_types[695]); }
// Ifc2x3::IfcRelConnectsStructuralMember::IfcRelConnectsStructuralMember(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelConnectsStructuralMember::IfcRelConnectsStructuralMember(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcStructuralMember v5_RelatingStructuralMember, ::Ifc2x3::IfcStructuralConnection v6_RelatedStructuralConnection, ::Ifc2x3::IfcBoundaryCondition v7_AppliedCondition, ::Ifc2x3::IfcStructuralConnectionCondition v8_AdditionalConditions, std::optional< double > v9_SupportedLength, ::Ifc2x3::IfcAxis2Placement3D v10_ConditionCoordinateSystem) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingStructuralMember));set_attribute_value(5, (v6_RelatedStructuralConnection)); if (v7_AppliedCondition) {set_attribute_value(6, (*v7_AppliedCondition)); } if (v8_AdditionalConditions) {set_attribute_value(7, (*v8_AdditionalConditions)); } if (v9_SupportedLength) {set_attribute_value(8, (*v9_SupportedLength)); } if (v10_ConditionCoordinateSystem) {set_attribute_value(9, (*v10_ConditionCoordinateSystem)); }; populate_derived(); }

// Function implementations for IfcRelConnectsWithEccentricity
::Ifc2x3::IfcConnectionGeometry Ifc2x3::IfcRelConnectsWithEccentricity::ConnectionConstraint() const {  return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcConnectionGeometry>(); }
void Ifc2x3::IfcRelConnectsWithEccentricity::setConnectionConstraint(const ::Ifc2x3::IfcConnectionGeometry& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsWithEccentricity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[696]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsWithEccentricity::Class() { return *((IfcParse::entity*)IFC2X3_types[696]); }
// Ifc2x3::IfcRelConnectsWithEccentricity::IfcRelConnectsWithEccentricity(const std::weak_ptr<InstanceData>& e) : IfcRelConnectsStructuralMember(e) { }
// Ifc2x3::IfcRelConnectsWithEccentricity::IfcRelConnectsWithEccentricity(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcStructuralMember v5_RelatingStructuralMember, ::Ifc2x3::IfcStructuralConnection v6_RelatedStructuralConnection, ::Ifc2x3::IfcBoundaryCondition v7_AppliedCondition, ::Ifc2x3::IfcStructuralConnectionCondition v8_AdditionalConditions, std::optional< double > v9_SupportedLength, ::Ifc2x3::IfcAxis2Placement3D v10_ConditionCoordinateSystem, ::Ifc2x3::IfcConnectionGeometry v11_ConnectionConstraint) : IfcRelConnectsStructuralMember(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingStructuralMember));set_attribute_value(5, (v6_RelatedStructuralConnection)); if (v7_AppliedCondition) {set_attribute_value(6, (*v7_AppliedCondition)); } if (v8_AdditionalConditions) {set_attribute_value(7, (*v8_AdditionalConditions)); } if (v9_SupportedLength) {set_attribute_value(8, (*v9_SupportedLength)); } if (v10_ConditionCoordinateSystem) {set_attribute_value(9, (*v10_ConditionCoordinateSystem)); }set_attribute_value(10, (v11_ConnectionConstraint));; populate_derived(); }

// Function implementations for IfcRelConnectsWithRealizingElements
std::vector< ::Ifc2x3::IfcElement > Ifc2x3::IfcRelConnectsWithRealizingElements::RealizingElements() const {  std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcElement>(es); }
void Ifc2x3::IfcRelConnectsWithRealizingElements::setRealizingElements(const std::vector< ::Ifc2x3::IfcElement >& v) { set_attribute_value(7, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(7); }
std::optional< std::string > Ifc2x3::IfcRelConnectsWithRealizingElements::ConnectionType() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcRelConnectsWithRealizingElements::setConnectionType(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcRelConnectsWithRealizingElements::declaration() const { return *((IfcParse::entity*)IFC2X3_types[697]); }
const IfcParse::entity& Ifc2x3::IfcRelConnectsWithRealizingElements::Class() { return *((IfcParse::entity*)IFC2X3_types[697]); }
// Ifc2x3::IfcRelConnectsWithRealizingElements::IfcRelConnectsWithRealizingElements(const std::weak_ptr<InstanceData>& e) : IfcRelConnectsElements(e) { }
// Ifc2x3::IfcRelConnectsWithRealizingElements::IfcRelConnectsWithRealizingElements(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcConnectionGeometry v5_ConnectionGeometry, ::Ifc2x3::IfcElement v6_RelatingElement, ::Ifc2x3::IfcElement v7_RelatedElement, std::vector< ::Ifc2x3::IfcElement > v8_RealizingElements, std::optional< std::string > v9_ConnectionType) : IfcRelConnectsElements(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ConnectionGeometry) {set_attribute_value(4, (*v5_ConnectionGeometry)); }set_attribute_value(5, (v6_RelatingElement));set_attribute_value(6, (v7_RelatedElement));set_attribute_value(7, (v8_RealizingElements)->generalize()); if (v9_ConnectionType) {set_attribute_value(8, (*v9_ConnectionType)); }; populate_derived(); }

// Function implementations for IfcRelContainedInSpatialStructure
std::vector< ::Ifc2x3::IfcProduct > Ifc2x3::IfcRelContainedInSpatialStructure::RelatedElements() const {  std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcProduct>(es); }
void Ifc2x3::IfcRelContainedInSpatialStructure::setRelatedElements(const std::vector< ::Ifc2x3::IfcProduct >& v) { set_attribute_value(4, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcSpatialStructureElement Ifc2x3::IfcRelContainedInSpatialStructure::RelatingStructure() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcSpatialStructureElement>(); }
void Ifc2x3::IfcRelContainedInSpatialStructure::setRelatingStructure(const ::Ifc2x3::IfcSpatialStructureElement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelContainedInSpatialStructure::declaration() const { return *((IfcParse::entity*)IFC2X3_types[698]); }
const IfcParse::entity& Ifc2x3::IfcRelContainedInSpatialStructure::Class() { return *((IfcParse::entity*)IFC2X3_types[698]); }
// Ifc2x3::IfcRelContainedInSpatialStructure::IfcRelContainedInSpatialStructure(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelContainedInSpatialStructure::IfcRelContainedInSpatialStructure(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcProduct > v5_RelatedElements, ::Ifc2x3::IfcSpatialStructureElement v6_RelatingStructure) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedElements)->generalize());set_attribute_value(5, (v6_RelatingStructure));; populate_derived(); }

// Function implementations for IfcRelCoversBldgElements
::Ifc2x3::IfcElement Ifc2x3::IfcRelCoversBldgElements::RelatingBuildingElement() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelCoversBldgElements::setRelatingBuildingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::vector< ::Ifc2x3::IfcCovering > Ifc2x3::IfcRelCoversBldgElements::RelatedCoverings() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcCovering>(es); }
void Ifc2x3::IfcRelCoversBldgElements::setRelatedCoverings(const std::vector< ::Ifc2x3::IfcCovering >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelCoversBldgElements::declaration() const { return *((IfcParse::entity*)IFC2X3_types[699]); }
const IfcParse::entity& Ifc2x3::IfcRelCoversBldgElements::Class() { return *((IfcParse::entity*)IFC2X3_types[699]); }
// Ifc2x3::IfcRelCoversBldgElements::IfcRelCoversBldgElements(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelCoversBldgElements::IfcRelCoversBldgElements(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcElement v5_RelatingBuildingElement, std::vector< ::Ifc2x3::IfcCovering > v6_RelatedCoverings) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingBuildingElement));set_attribute_value(5, (v6_RelatedCoverings)->generalize());; populate_derived(); }

// Function implementations for IfcRelCoversSpaces
::Ifc2x3::IfcSpace Ifc2x3::IfcRelCoversSpaces::RelatedSpace() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcSpace>(); }
void Ifc2x3::IfcRelCoversSpaces::setRelatedSpace(const ::Ifc2x3::IfcSpace& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::vector< ::Ifc2x3::IfcCovering > Ifc2x3::IfcRelCoversSpaces::RelatedCoverings() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcCovering>(es); }
void Ifc2x3::IfcRelCoversSpaces::setRelatedCoverings(const std::vector< ::Ifc2x3::IfcCovering >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelCoversSpaces::declaration() const { return *((IfcParse::entity*)IFC2X3_types[700]); }
const IfcParse::entity& Ifc2x3::IfcRelCoversSpaces::Class() { return *((IfcParse::entity*)IFC2X3_types[700]); }
// Ifc2x3::IfcRelCoversSpaces::IfcRelCoversSpaces(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelCoversSpaces::IfcRelCoversSpaces(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcSpace v5_RelatedSpace, std::vector< ::Ifc2x3::IfcCovering > v6_RelatedCoverings) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedSpace));set_attribute_value(5, (v6_RelatedCoverings)->generalize());; populate_derived(); }

// Function implementations for IfcRelDecomposes
::Ifc2x3::IfcObjectDefinition Ifc2x3::IfcRelDecomposes::RelatingObject() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcObjectDefinition>(); }
void Ifc2x3::IfcRelDecomposes::setRelatingObject(const ::Ifc2x3::IfcObjectDefinition& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::vector< ::Ifc2x3::IfcObjectDefinition > Ifc2x3::IfcRelDecomposes::RelatedObjects() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcObjectDefinition>(es); }
void Ifc2x3::IfcRelDecomposes::setRelatedObjects(const std::vector< ::Ifc2x3::IfcObjectDefinition >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelDecomposes::declaration() const { return *((IfcParse::entity*)IFC2X3_types[701]); }
const IfcParse::entity& Ifc2x3::IfcRelDecomposes::Class() { return *((IfcParse::entity*)IFC2X3_types[701]); }
// Ifc2x3::IfcRelDecomposes::IfcRelDecomposes(const std::weak_ptr<InstanceData>& e) : IfcRelationship(e) { }
// Ifc2x3::IfcRelDecomposes::IfcRelDecomposes(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcObjectDefinition v5_RelatingObject, std::vector< ::Ifc2x3::IfcObjectDefinition > v6_RelatedObjects) : IfcRelationship(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingObject));set_attribute_value(5, (v6_RelatedObjects)->generalize());; populate_derived(); }

// Function implementations for IfcRelDefines
std::vector< ::Ifc2x3::IfcObject > Ifc2x3::IfcRelDefines::RelatedObjects() const {  std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcObject>(es); }
void Ifc2x3::IfcRelDefines::setRelatedObjects(const std::vector< ::Ifc2x3::IfcObject >& v) { set_attribute_value(4, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcRelDefines::declaration() const { return *((IfcParse::entity*)IFC2X3_types[702]); }
const IfcParse::entity& Ifc2x3::IfcRelDefines::Class() { return *((IfcParse::entity*)IFC2X3_types[702]); }
// Ifc2x3::IfcRelDefines::IfcRelDefines(const std::weak_ptr<InstanceData>& e) : IfcRelationship(e) { }
// Ifc2x3::IfcRelDefines::IfcRelDefines(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObject > v5_RelatedObjects) : IfcRelationship(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());; populate_derived(); }

// Function implementations for IfcRelDefinesByProperties
::Ifc2x3::IfcPropertySetDefinition Ifc2x3::IfcRelDefinesByProperties::RelatingPropertyDefinition() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcPropertySetDefinition>(); }
void Ifc2x3::IfcRelDefinesByProperties::setRelatingPropertyDefinition(const ::Ifc2x3::IfcPropertySetDefinition& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelDefinesByProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[703]); }
const IfcParse::entity& Ifc2x3::IfcRelDefinesByProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[703]); }
// Ifc2x3::IfcRelDefinesByProperties::IfcRelDefinesByProperties(const std::weak_ptr<InstanceData>& e) : IfcRelDefines(e) { }
// Ifc2x3::IfcRelDefinesByProperties::IfcRelDefinesByProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObject > v5_RelatedObjects, ::Ifc2x3::IfcPropertySetDefinition v6_RelatingPropertyDefinition) : IfcRelDefines(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingPropertyDefinition));; populate_derived(); }

// Function implementations for IfcRelDefinesByType
::Ifc2x3::IfcTypeObject Ifc2x3::IfcRelDefinesByType::RelatingType() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcTypeObject>(); }
void Ifc2x3::IfcRelDefinesByType::setRelatingType(const ::Ifc2x3::IfcTypeObject& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelDefinesByType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[704]); }
const IfcParse::entity& Ifc2x3::IfcRelDefinesByType::Class() { return *((IfcParse::entity*)IFC2X3_types[704]); }
// Ifc2x3::IfcRelDefinesByType::IfcRelDefinesByType(const std::weak_ptr<InstanceData>& e) : IfcRelDefines(e) { }
// Ifc2x3::IfcRelDefinesByType::IfcRelDefinesByType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObject > v5_RelatedObjects, ::Ifc2x3::IfcTypeObject v6_RelatingType) : IfcRelDefines(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingType));; populate_derived(); }

// Function implementations for IfcRelFillsElement
::Ifc2x3::IfcOpeningElement Ifc2x3::IfcRelFillsElement::RelatingOpeningElement() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcOpeningElement>(); }
void Ifc2x3::IfcRelFillsElement::setRelatingOpeningElement(const ::Ifc2x3::IfcOpeningElement& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcElement Ifc2x3::IfcRelFillsElement::RelatedBuildingElement() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelFillsElement::setRelatedBuildingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelFillsElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[705]); }
const IfcParse::entity& Ifc2x3::IfcRelFillsElement::Class() { return *((IfcParse::entity*)IFC2X3_types[705]); }
// Ifc2x3::IfcRelFillsElement::IfcRelFillsElement(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelFillsElement::IfcRelFillsElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcOpeningElement v5_RelatingOpeningElement, ::Ifc2x3::IfcElement v6_RelatedBuildingElement) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingOpeningElement));set_attribute_value(5, (v6_RelatedBuildingElement));; populate_derived(); }

// Function implementations for IfcRelFlowControlElements
std::vector< ::Ifc2x3::IfcDistributionControlElement > Ifc2x3::IfcRelFlowControlElements::RelatedControlElements() const {  std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcDistributionControlElement>(es); }
void Ifc2x3::IfcRelFlowControlElements::setRelatedControlElements(const std::vector< ::Ifc2x3::IfcDistributionControlElement >& v) { set_attribute_value(4, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcDistributionFlowElement Ifc2x3::IfcRelFlowControlElements::RelatingFlowElement() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcDistributionFlowElement>(); }
void Ifc2x3::IfcRelFlowControlElements::setRelatingFlowElement(const ::Ifc2x3::IfcDistributionFlowElement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelFlowControlElements::declaration() const { return *((IfcParse::entity*)IFC2X3_types[706]); }
const IfcParse::entity& Ifc2x3::IfcRelFlowControlElements::Class() { return *((IfcParse::entity*)IFC2X3_types[706]); }
// Ifc2x3::IfcRelFlowControlElements::IfcRelFlowControlElements(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelFlowControlElements::IfcRelFlowControlElements(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcDistributionControlElement > v5_RelatedControlElements, ::Ifc2x3::IfcDistributionFlowElement v6_RelatingFlowElement) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedControlElements)->generalize());set_attribute_value(5, (v6_RelatingFlowElement));; populate_derived(); }

// Function implementations for IfcRelInteractionRequirements
std::optional< double > Ifc2x3::IfcRelInteractionRequirements::DailyInteraction() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcRelInteractionRequirements::setDailyInteraction(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcRelInteractionRequirements::ImportanceRating() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcRelInteractionRequirements::setImportanceRating(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
::Ifc2x3::IfcSpatialStructureElement Ifc2x3::IfcRelInteractionRequirements::LocationOfInteraction() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcSpatialStructureElement{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcSpatialStructureElement>(); }
void Ifc2x3::IfcRelInteractionRequirements::setLocationOfInteraction(const ::Ifc2x3::IfcSpatialStructureElement& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcSpaceProgram Ifc2x3::IfcRelInteractionRequirements::RelatedSpaceProgram() const {  return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcSpaceProgram>(); }
void Ifc2x3::IfcRelInteractionRequirements::setRelatedSpaceProgram(const ::Ifc2x3::IfcSpaceProgram& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcSpaceProgram Ifc2x3::IfcRelInteractionRequirements::RelatingSpaceProgram() const {  return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcSpaceProgram>(); }
void Ifc2x3::IfcRelInteractionRequirements::setRelatingSpaceProgram(const ::Ifc2x3::IfcSpaceProgram& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcRelInteractionRequirements::declaration() const { return *((IfcParse::entity*)IFC2X3_types[707]); }
const IfcParse::entity& Ifc2x3::IfcRelInteractionRequirements::Class() { return *((IfcParse::entity*)IFC2X3_types[707]); }
// Ifc2x3::IfcRelInteractionRequirements::IfcRelInteractionRequirements(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelInteractionRequirements::IfcRelInteractionRequirements(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< double > v5_DailyInteraction, std::optional< double > v6_ImportanceRating, ::Ifc2x3::IfcSpatialStructureElement v7_LocationOfInteraction, ::Ifc2x3::IfcSpaceProgram v8_RelatedSpaceProgram, ::Ifc2x3::IfcSpaceProgram v9_RelatingSpaceProgram) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_DailyInteraction) {set_attribute_value(4, (*v5_DailyInteraction)); } if (v6_ImportanceRating) {set_attribute_value(5, (*v6_ImportanceRating)); } if (v7_LocationOfInteraction) {set_attribute_value(6, (*v7_LocationOfInteraction)); }set_attribute_value(7, (v8_RelatedSpaceProgram));set_attribute_value(8, (v9_RelatingSpaceProgram));; populate_derived(); }

// Function implementations for IfcRelNests


// const IfcParse::entity& Ifc2x3::IfcRelNests::declaration() const { return *((IfcParse::entity*)IFC2X3_types[708]); }
const IfcParse::entity& Ifc2x3::IfcRelNests::Class() { return *((IfcParse::entity*)IFC2X3_types[708]); }
// Ifc2x3::IfcRelNests::IfcRelNests(const std::weak_ptr<InstanceData>& e) : IfcRelDecomposes(e) { }
// Ifc2x3::IfcRelNests::IfcRelNests(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcObjectDefinition v5_RelatingObject, std::vector< ::Ifc2x3::IfcObjectDefinition > v6_RelatedObjects) : IfcRelDecomposes(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingObject));set_attribute_value(5, (v6_RelatedObjects)->generalize());; populate_derived(); }

// Function implementations for IfcRelOccupiesSpaces


// const IfcParse::entity& Ifc2x3::IfcRelOccupiesSpaces::declaration() const { return *((IfcParse::entity*)IFC2X3_types[709]); }
const IfcParse::entity& Ifc2x3::IfcRelOccupiesSpaces::Class() { return *((IfcParse::entity*)IFC2X3_types[709]); }
// Ifc2x3::IfcRelOccupiesSpaces::IfcRelOccupiesSpaces(const std::weak_ptr<InstanceData>& e) : IfcRelAssignsToActor(e) { }
// Ifc2x3::IfcRelOccupiesSpaces::IfcRelOccupiesSpaces(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcActor v7_RelatingActor, ::Ifc2x3::IfcActorRole v8_ActingRole) : IfcRelAssignsToActor(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingActor)); if (v8_ActingRole) {set_attribute_value(7, (*v8_ActingRole)); }; populate_derived(); }

// Function implementations for IfcRelOverridesProperties
std::vector< ::Ifc2x3::IfcProperty > Ifc2x3::IfcRelOverridesProperties::OverridingProperties() const {  std::vector<express::Base> es = get_attribute_value(6); return cast_vector<::Ifc2x3::IfcProperty>(es); }
void Ifc2x3::IfcRelOverridesProperties::setOverridingProperties(const std::vector< ::Ifc2x3::IfcProperty >& v) { set_attribute_value(6, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRelOverridesProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[710]); }
const IfcParse::entity& Ifc2x3::IfcRelOverridesProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[710]); }
// Ifc2x3::IfcRelOverridesProperties::IfcRelOverridesProperties(const std::weak_ptr<InstanceData>& e) : IfcRelDefinesByProperties(e) { }
// Ifc2x3::IfcRelOverridesProperties::IfcRelOverridesProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObject > v5_RelatedObjects, ::Ifc2x3::IfcPropertySetDefinition v6_RelatingPropertyDefinition, std::vector< ::Ifc2x3::IfcProperty > v7_OverridingProperties) : IfcRelDefinesByProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize());set_attribute_value(5, (v6_RelatingPropertyDefinition));set_attribute_value(6, (v7_OverridingProperties)->generalize());; populate_derived(); }

// Function implementations for IfcRelProjectsElement
::Ifc2x3::IfcElement Ifc2x3::IfcRelProjectsElement::RelatingElement() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelProjectsElement::setRelatingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcFeatureElementAddition Ifc2x3::IfcRelProjectsElement::RelatedFeatureElement() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcFeatureElementAddition>(); }
void Ifc2x3::IfcRelProjectsElement::setRelatedFeatureElement(const ::Ifc2x3::IfcFeatureElementAddition& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelProjectsElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[711]); }
const IfcParse::entity& Ifc2x3::IfcRelProjectsElement::Class() { return *((IfcParse::entity*)IFC2X3_types[711]); }
// Ifc2x3::IfcRelProjectsElement::IfcRelProjectsElement(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelProjectsElement::IfcRelProjectsElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcElement v5_RelatingElement, ::Ifc2x3::IfcFeatureElementAddition v6_RelatedFeatureElement) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingElement));set_attribute_value(5, (v6_RelatedFeatureElement));; populate_derived(); }

// Function implementations for IfcRelReferencedInSpatialStructure
std::vector< ::Ifc2x3::IfcProduct > Ifc2x3::IfcRelReferencedInSpatialStructure::RelatedElements() const {  std::vector<express::Base> es = get_attribute_value(4); return cast_vector<::Ifc2x3::IfcProduct>(es); }
void Ifc2x3::IfcRelReferencedInSpatialStructure::setRelatedElements(const std::vector< ::Ifc2x3::IfcProduct >& v) { set_attribute_value(4, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcSpatialStructureElement Ifc2x3::IfcRelReferencedInSpatialStructure::RelatingStructure() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcSpatialStructureElement>(); }
void Ifc2x3::IfcRelReferencedInSpatialStructure::setRelatingStructure(const ::Ifc2x3::IfcSpatialStructureElement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelReferencedInSpatialStructure::declaration() const { return *((IfcParse::entity*)IFC2X3_types[712]); }
const IfcParse::entity& Ifc2x3::IfcRelReferencedInSpatialStructure::Class() { return *((IfcParse::entity*)IFC2X3_types[712]); }
// Ifc2x3::IfcRelReferencedInSpatialStructure::IfcRelReferencedInSpatialStructure(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelReferencedInSpatialStructure::IfcRelReferencedInSpatialStructure(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcProduct > v5_RelatedElements, ::Ifc2x3::IfcSpatialStructureElement v6_RelatingStructure) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedElements)->generalize());set_attribute_value(5, (v6_RelatingStructure));; populate_derived(); }

// Function implementations for IfcRelSchedulesCostItems


// const IfcParse::entity& Ifc2x3::IfcRelSchedulesCostItems::declaration() const { return *((IfcParse::entity*)IFC2X3_types[713]); }
const IfcParse::entity& Ifc2x3::IfcRelSchedulesCostItems::Class() { return *((IfcParse::entity*)IFC2X3_types[713]); }
// Ifc2x3::IfcRelSchedulesCostItems::IfcRelSchedulesCostItems(const std::weak_ptr<InstanceData>& e) : IfcRelAssignsToControl(e) { }
// Ifc2x3::IfcRelSchedulesCostItems::IfcRelSchedulesCostItems(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::vector< ::Ifc2x3::IfcObjectDefinition > v5_RelatedObjects, std::optional< ::Ifc2x3::IfcObjectTypeEnum::Value > v6_RelatedObjectsType, ::Ifc2x3::IfcControl v7_RelatingControl) : IfcRelAssignsToControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatedObjects)->generalize()); if (v6_RelatedObjectsType) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcObjectTypeEnum::Class(),(size_t)*v6_RelatedObjectsType))); }set_attribute_value(6, (v7_RelatingControl));; populate_derived(); }

// Function implementations for IfcRelSequence
::Ifc2x3::IfcProcess Ifc2x3::IfcRelSequence::RelatingProcess() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcProcess>(); }
void Ifc2x3::IfcRelSequence::setRelatingProcess(const ::Ifc2x3::IfcProcess& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcProcess Ifc2x3::IfcRelSequence::RelatedProcess() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcProcess>(); }
void Ifc2x3::IfcRelSequence::setRelatedProcess(const ::Ifc2x3::IfcProcess& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcRelSequence::TimeLag() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcRelSequence::setTimeLag(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcSequenceEnum::Value Ifc2x3::IfcRelSequence::SequenceType() const {  return ::Ifc2x3::IfcSequenceEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcRelSequence::setSequenceType(const ::Ifc2x3::IfcSequenceEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcSequenceEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcRelSequence::declaration() const { return *((IfcParse::entity*)IFC2X3_types[714]); }
const IfcParse::entity& Ifc2x3::IfcRelSequence::Class() { return *((IfcParse::entity*)IFC2X3_types[714]); }
// Ifc2x3::IfcRelSequence::IfcRelSequence(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelSequence::IfcRelSequence(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcProcess v5_RelatingProcess, ::Ifc2x3::IfcProcess v6_RelatedProcess, double v7_TimeLag, ::Ifc2x3::IfcSequenceEnum::Value v8_SequenceType) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingProcess));set_attribute_value(5, (v6_RelatedProcess));set_attribute_value(6, (v7_TimeLag));set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcSequenceEnum::Class(),(size_t)v8_SequenceType)));; populate_derived(); }

// Function implementations for IfcRelServicesBuildings
::Ifc2x3::IfcSystem Ifc2x3::IfcRelServicesBuildings::RelatingSystem() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcSystem>(); }
void Ifc2x3::IfcRelServicesBuildings::setRelatingSystem(const ::Ifc2x3::IfcSystem& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::vector< ::Ifc2x3::IfcSpatialStructureElement > Ifc2x3::IfcRelServicesBuildings::RelatedBuildings() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcSpatialStructureElement>(es); }
void Ifc2x3::IfcRelServicesBuildings::setRelatedBuildings(const std::vector< ::Ifc2x3::IfcSpatialStructureElement >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelServicesBuildings::declaration() const { return *((IfcParse::entity*)IFC2X3_types[715]); }
const IfcParse::entity& Ifc2x3::IfcRelServicesBuildings::Class() { return *((IfcParse::entity*)IFC2X3_types[715]); }
// Ifc2x3::IfcRelServicesBuildings::IfcRelServicesBuildings(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelServicesBuildings::IfcRelServicesBuildings(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcSystem v5_RelatingSystem, std::vector< ::Ifc2x3::IfcSpatialStructureElement > v6_RelatedBuildings) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingSystem));set_attribute_value(5, (v6_RelatedBuildings)->generalize());; populate_derived(); }

// Function implementations for IfcRelSpaceBoundary
::Ifc2x3::IfcSpace Ifc2x3::IfcRelSpaceBoundary::RelatingSpace() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcSpace>(); }
void Ifc2x3::IfcRelSpaceBoundary::setRelatingSpace(const ::Ifc2x3::IfcSpace& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcElement Ifc2x3::IfcRelSpaceBoundary::RelatedBuildingElement() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcElement{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelSpaceBoundary::setRelatedBuildingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcConnectionGeometry Ifc2x3::IfcRelSpaceBoundary::ConnectionGeometry() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcConnectionGeometry{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcConnectionGeometry>(); }
void Ifc2x3::IfcRelSpaceBoundary::setConnectionGeometry(const ::Ifc2x3::IfcConnectionGeometry& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcPhysicalOrVirtualEnum::Value Ifc2x3::IfcRelSpaceBoundary::PhysicalOrVirtualBoundary() const {  return ::Ifc2x3::IfcPhysicalOrVirtualEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcRelSpaceBoundary::setPhysicalOrVirtualBoundary(const ::Ifc2x3::IfcPhysicalOrVirtualEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcPhysicalOrVirtualEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcInternalOrExternalEnum::Value Ifc2x3::IfcRelSpaceBoundary::InternalOrExternalBoundary() const {  return ::Ifc2x3::IfcInternalOrExternalEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcRelSpaceBoundary::setInternalOrExternalBoundary(const ::Ifc2x3::IfcInternalOrExternalEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcInternalOrExternalEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcRelSpaceBoundary::declaration() const { return *((IfcParse::entity*)IFC2X3_types[716]); }
const IfcParse::entity& Ifc2x3::IfcRelSpaceBoundary::Class() { return *((IfcParse::entity*)IFC2X3_types[716]); }
// Ifc2x3::IfcRelSpaceBoundary::IfcRelSpaceBoundary(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelSpaceBoundary::IfcRelSpaceBoundary(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcSpace v5_RelatingSpace, ::Ifc2x3::IfcElement v6_RelatedBuildingElement, ::Ifc2x3::IfcConnectionGeometry v7_ConnectionGeometry, ::Ifc2x3::IfcPhysicalOrVirtualEnum::Value v8_PhysicalOrVirtualBoundary, ::Ifc2x3::IfcInternalOrExternalEnum::Value v9_InternalOrExternalBoundary) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingSpace)); if (v6_RelatedBuildingElement) {set_attribute_value(5, (*v6_RelatedBuildingElement)); } if (v7_ConnectionGeometry) {set_attribute_value(6, (*v7_ConnectionGeometry)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcPhysicalOrVirtualEnum::Class(),(size_t)v8_PhysicalOrVirtualBoundary)));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcInternalOrExternalEnum::Class(),(size_t)v9_InternalOrExternalBoundary)));; populate_derived(); }

// Function implementations for IfcRelVoidsElement
::Ifc2x3::IfcElement Ifc2x3::IfcRelVoidsElement::RelatingBuildingElement() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcElement>(); }
void Ifc2x3::IfcRelVoidsElement::setRelatingBuildingElement(const ::Ifc2x3::IfcElement& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcFeatureElementSubtraction Ifc2x3::IfcRelVoidsElement::RelatedOpeningElement() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcFeatureElementSubtraction>(); }
void Ifc2x3::IfcRelVoidsElement::setRelatedOpeningElement(const ::Ifc2x3::IfcFeatureElementSubtraction& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRelVoidsElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[717]); }
const IfcParse::entity& Ifc2x3::IfcRelVoidsElement::Class() { return *((IfcParse::entity*)IFC2X3_types[717]); }
// Ifc2x3::IfcRelVoidsElement::IfcRelVoidsElement(const std::weak_ptr<InstanceData>& e) : IfcRelConnects(e) { }
// Ifc2x3::IfcRelVoidsElement::IfcRelVoidsElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcElement v5_RelatingBuildingElement, ::Ifc2x3::IfcFeatureElementSubtraction v6_RelatedOpeningElement) : IfcRelConnects(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_RelatingBuildingElement));set_attribute_value(5, (v6_RelatedOpeningElement));; populate_derived(); }

// Function implementations for IfcRelationship


// const IfcParse::entity& Ifc2x3::IfcRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[686]); }
const IfcParse::entity& Ifc2x3::IfcRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[686]); }
// Ifc2x3::IfcRelationship::IfcRelationship(const std::weak_ptr<InstanceData>& e) : IfcRoot(e) { }
// Ifc2x3::IfcRelationship::IfcRelationship(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : IfcRoot(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcRelaxation
double Ifc2x3::IfcRelaxation::RelaxationValue() const {  double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcRelaxation::setRelaxationValue(const double& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcRelaxation::InitialStress() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcRelaxation::setInitialStress(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcRelaxation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[687]); }
const IfcParse::entity& Ifc2x3::IfcRelaxation::Class() { return *((IfcParse::entity*)IFC2X3_types[687]); }
// Ifc2x3::IfcRelaxation::IfcRelaxation(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcRelaxation::IfcRelaxation(double v1_RelaxationValue, double v2_InitialStress) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_RelaxationValue));set_attribute_value(1, (v2_InitialStress));; populate_derived(); }

// Function implementations for IfcRepresentation
::Ifc2x3::IfcRepresentationContext Ifc2x3::IfcRepresentation::ContextOfItems() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcRepresentationContext>(); }
void Ifc2x3::IfcRepresentation::setContextOfItems(const ::Ifc2x3::IfcRepresentationContext& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcRepresentation::RepresentationIdentifier() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcRepresentation::setRepresentationIdentifier(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcRepresentation::RepresentationType() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcRepresentation::setRepresentationType(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::vector< ::Ifc2x3::IfcRepresentationItem > Ifc2x3::IfcRepresentation::Items() const {  std::vector<express::Base> es = get_attribute_value(3); return cast_vector<::Ifc2x3::IfcRepresentationItem>(es); }
void Ifc2x3::IfcRepresentation::setItems(const std::vector< ::Ifc2x3::IfcRepresentationItem >& v) { set_attribute_value(3, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(3); }

std::vector<::Ifc2x3::IfcRepresentationMap> Ifc2x3::IfcRepresentation::RepresentationMap() const { return cast_vector<IfcRepresentationMap>(file()->getInverse(data()->id(), IFC2X3_types[721], 1)); }
std::vector<::Ifc2x3::IfcPresentationLayerAssignment> Ifc2x3::IfcRepresentation::LayerAssignments() const { return cast_vector<IfcPresentationLayerAssignment>(file()->getInverse(data()->id(), IFC2X3_types[591], 2)); }
std::vector<::Ifc2x3::IfcProductRepresentation> Ifc2x3::IfcRepresentation::OfProductRepresentation() const { return cast_vector<IfcProductRepresentation>(file()->getInverse(data()->id(), IFC2X3_types[602], 2)); }

// const IfcParse::entity& Ifc2x3::IfcRepresentation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[718]); }
const IfcParse::entity& Ifc2x3::IfcRepresentation::Class() { return *((IfcParse::entity*)IFC2X3_types[718]); }
// Ifc2x3::IfcRepresentation::IfcRepresentation(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcRepresentation::IfcRepresentation(::Ifc2x3::IfcRepresentationContext v1_ContextOfItems, std::optional< std::string > v2_RepresentationIdentifier, std::optional< std::string > v3_RepresentationType, std::vector< ::Ifc2x3::IfcRepresentationItem > v4_Items) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ContextOfItems)); if (v2_RepresentationIdentifier) {set_attribute_value(1, (*v2_RepresentationIdentifier)); } if (v3_RepresentationType) {set_attribute_value(2, (*v3_RepresentationType)); }set_attribute_value(3, (v4_Items)->generalize());; populate_derived(); }

// Function implementations for IfcRepresentationContext
std::optional< std::string > Ifc2x3::IfcRepresentationContext::ContextIdentifier() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcRepresentationContext::setContextIdentifier(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< std::string > Ifc2x3::IfcRepresentationContext::ContextType() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcRepresentationContext::setContextType(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }

std::vector<::Ifc2x3::IfcRepresentation> Ifc2x3::IfcRepresentationContext::RepresentationsInContext() const { return cast_vector<IfcRepresentation>(file()->getInverse(data()->id(), IFC2X3_types[718], 0)); }

// const IfcParse::entity& Ifc2x3::IfcRepresentationContext::declaration() const { return *((IfcParse::entity*)IFC2X3_types[719]); }
const IfcParse::entity& Ifc2x3::IfcRepresentationContext::Class() { return *((IfcParse::entity*)IFC2X3_types[719]); }
// Ifc2x3::IfcRepresentationContext::IfcRepresentationContext(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcRepresentationContext::IfcRepresentationContext(std::optional< std::string > v1_ContextIdentifier, std::optional< std::string > v2_ContextType) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) {  if (v1_ContextIdentifier) {set_attribute_value(0, (*v1_ContextIdentifier)); } if (v2_ContextType) {set_attribute_value(1, (*v2_ContextType)); }; populate_derived(); }

// Function implementations for IfcRepresentationItem

std::vector<::Ifc2x3::IfcPresentationLayerAssignment> Ifc2x3::IfcRepresentationItem::LayerAssignments() const { return cast_vector<IfcPresentationLayerAssignment>(file()->getInverse(data()->id(), IFC2X3_types[591], 2)); }
std::vector<::Ifc2x3::IfcStyledItem> Ifc2x3::IfcRepresentationItem::StyledByItem() const { return cast_vector<IfcStyledItem>(file()->getInverse(data()->id(), IFC2X3_types[839], 0)); }

// const IfcParse::entity& Ifc2x3::IfcRepresentationItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[720]); }
const IfcParse::entity& Ifc2x3::IfcRepresentationItem::Class() { return *((IfcParse::entity*)IFC2X3_types[720]); }
// Ifc2x3::IfcRepresentationItem::IfcRepresentationItem(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcRepresentationItem::IfcRepresentationItem() : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcRepresentationMap
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcRepresentationMap::MappingOrigin() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcRepresentationMap::setMappingOrigin(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcRepresentation Ifc2x3::IfcRepresentationMap::MappedRepresentation() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcRepresentation>(); }
void Ifc2x3::IfcRepresentationMap::setMappedRepresentation(const ::Ifc2x3::IfcRepresentation& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }

std::vector<::Ifc2x3::IfcMappedItem> Ifc2x3::IfcRepresentationMap::MapUsage() const { return cast_vector<IfcMappedItem>(file()->getInverse(data()->id(), IFC2X3_types[471], 0)); }

// const IfcParse::entity& Ifc2x3::IfcRepresentationMap::declaration() const { return *((IfcParse::entity*)IFC2X3_types[721]); }
const IfcParse::entity& Ifc2x3::IfcRepresentationMap::Class() { return *((IfcParse::entity*)IFC2X3_types[721]); }
// Ifc2x3::IfcRepresentationMap::IfcRepresentationMap(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcRepresentationMap::IfcRepresentationMap(::Ifc2x3::IfcAxis2Placement v1_MappingOrigin, ::Ifc2x3::IfcRepresentation v2_MappedRepresentation) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_MappingOrigin));set_attribute_value(1, (v2_MappedRepresentation));; populate_derived(); }

// Function implementations for IfcResource

std::vector<::Ifc2x3::IfcRelAssignsToResource> Ifc2x3::IfcResource::ResourceOf() const { return cast_vector<IfcRelAssignsToResource>(file()->getInverse(data()->id(), IFC2X3_types[676], 6)); }

// const IfcParse::entity& Ifc2x3::IfcResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[722]); }
const IfcParse::entity& Ifc2x3::IfcResource::Class() { return *((IfcParse::entity*)IFC2X3_types[722]); }
// Ifc2x3::IfcResource::IfcResource(const std::weak_ptr<InstanceData>& e) : IfcObject(e) { }
// Ifc2x3::IfcResource::IfcResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcRevolvedAreaSolid
::Ifc2x3::IfcAxis1Placement Ifc2x3::IfcRevolvedAreaSolid::Axis() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcAxis1Placement>(); }
void Ifc2x3::IfcRevolvedAreaSolid::setAxis(const ::Ifc2x3::IfcAxis1Placement& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcRevolvedAreaSolid::Angle() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcRevolvedAreaSolid::setAngle(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcRevolvedAreaSolid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[724]); }
const IfcParse::entity& Ifc2x3::IfcRevolvedAreaSolid::Class() { return *((IfcParse::entity*)IFC2X3_types[724]); }
// Ifc2x3::IfcRevolvedAreaSolid::IfcRevolvedAreaSolid(const std::weak_ptr<InstanceData>& e) : IfcSweptAreaSolid(e) { }
// Ifc2x3::IfcRevolvedAreaSolid::IfcRevolvedAreaSolid(::Ifc2x3::IfcProfileDef v1_SweptArea, ::Ifc2x3::IfcAxis2Placement3D v2_Position, ::Ifc2x3::IfcAxis1Placement v3_Axis, double v4_Angle) : IfcSweptAreaSolid(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_SweptArea));set_attribute_value(1, (v2_Position));set_attribute_value(2, (v3_Axis));set_attribute_value(3, (v4_Angle));; populate_derived(); }

// Function implementations for IfcRibPlateProfileProperties
std::optional< double > Ifc2x3::IfcRibPlateProfileProperties::Thickness() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcRibPlateProfileProperties::setThickness(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcRibPlateProfileProperties::RibHeight() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcRibPlateProfileProperties::setRibHeight(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcRibPlateProfileProperties::RibWidth() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcRibPlateProfileProperties::setRibWidth(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcRibPlateProfileProperties::RibSpacing() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcRibPlateProfileProperties::setRibSpacing(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
::Ifc2x3::IfcRibPlateDirectionEnum::Value Ifc2x3::IfcRibPlateProfileProperties::Direction() const {  return ::Ifc2x3::IfcRibPlateDirectionEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcRibPlateProfileProperties::setDirection(const ::Ifc2x3::IfcRibPlateDirectionEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcRibPlateDirectionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcRibPlateProfileProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[726]); }
const IfcParse::entity& Ifc2x3::IfcRibPlateProfileProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[726]); }
// Ifc2x3::IfcRibPlateProfileProperties::IfcRibPlateProfileProperties(const std::weak_ptr<InstanceData>& e) : IfcProfileProperties(e) { }
// Ifc2x3::IfcRibPlateProfileProperties::IfcRibPlateProfileProperties(std::optional< std::string > v1_ProfileName, ::Ifc2x3::IfcProfileDef v2_ProfileDefinition, std::optional< double > v3_Thickness, std::optional< double > v4_RibHeight, std::optional< double > v5_RibWidth, std::optional< double > v6_RibSpacing, ::Ifc2x3::IfcRibPlateDirectionEnum::Value v7_Direction) : IfcProfileProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_ProfileName) {set_attribute_value(0, (*v1_ProfileName)); } if (v2_ProfileDefinition) {set_attribute_value(1, (*v2_ProfileDefinition)); } if (v3_Thickness) {set_attribute_value(2, (*v3_Thickness)); } if (v4_RibHeight) {set_attribute_value(3, (*v4_RibHeight)); } if (v5_RibWidth) {set_attribute_value(4, (*v5_RibWidth)); } if (v6_RibSpacing) {set_attribute_value(5, (*v6_RibSpacing)); }set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcRibPlateDirectionEnum::Class(),(size_t)v7_Direction)));; populate_derived(); }

// Function implementations for IfcRightCircularCone
double Ifc2x3::IfcRightCircularCone::Height() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcRightCircularCone::setHeight(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcRightCircularCone::BottomRadius() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcRightCircularCone::setBottomRadius(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcRightCircularCone::declaration() const { return *((IfcParse::entity*)IFC2X3_types[727]); }
const IfcParse::entity& Ifc2x3::IfcRightCircularCone::Class() { return *((IfcParse::entity*)IFC2X3_types[727]); }
// Ifc2x3::IfcRightCircularCone::IfcRightCircularCone(const std::weak_ptr<InstanceData>& e) : IfcCsgPrimitive3D(e) { }
// Ifc2x3::IfcRightCircularCone::IfcRightCircularCone(::Ifc2x3::IfcAxis2Placement3D v1_Position, double v2_Height, double v3_BottomRadius) : IfcCsgPrimitive3D(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Position));set_attribute_value(1, (v2_Height));set_attribute_value(2, (v3_BottomRadius));; populate_derived(); }

// Function implementations for IfcRightCircularCylinder
double Ifc2x3::IfcRightCircularCylinder::Height() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcRightCircularCylinder::setHeight(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
double Ifc2x3::IfcRightCircularCylinder::Radius() const {  double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcRightCircularCylinder::setRadius(const double& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcRightCircularCylinder::declaration() const { return *((IfcParse::entity*)IFC2X3_types[728]); }
const IfcParse::entity& Ifc2x3::IfcRightCircularCylinder::Class() { return *((IfcParse::entity*)IFC2X3_types[728]); }
// Ifc2x3::IfcRightCircularCylinder::IfcRightCircularCylinder(const std::weak_ptr<InstanceData>& e) : IfcCsgPrimitive3D(e) { }
// Ifc2x3::IfcRightCircularCylinder::IfcRightCircularCylinder(::Ifc2x3::IfcAxis2Placement3D v1_Position, double v2_Height, double v3_Radius) : IfcCsgPrimitive3D(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Position));set_attribute_value(1, (v2_Height));set_attribute_value(2, (v3_Radius));; populate_derived(); }

// Function implementations for IfcRoof
::Ifc2x3::IfcRoofTypeEnum::Value Ifc2x3::IfcRoof::ShapeType() const {  return ::Ifc2x3::IfcRoofTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcRoof::setShapeType(const ::Ifc2x3::IfcRoofTypeEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcRoofTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcRoof::declaration() const { return *((IfcParse::entity*)IFC2X3_types[730]); }
const IfcParse::entity& Ifc2x3::IfcRoof::Class() { return *((IfcParse::entity*)IFC2X3_types[730]); }
// Ifc2x3::IfcRoof::IfcRoof(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcRoof::IfcRoof(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcRoofTypeEnum::Value v9_ShapeType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcRoofTypeEnum::Class(),(size_t)v9_ShapeType)));; populate_derived(); }

// Function implementations for IfcRoot
std::string Ifc2x3::IfcRoot::GlobalId() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcRoot::setGlobalId(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcOwnerHistory Ifc2x3::IfcRoot::OwnerHistory() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcOwnerHistory>(); }
void Ifc2x3::IfcRoot::setOwnerHistory(const ::Ifc2x3::IfcOwnerHistory& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcRoot::Name() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcRoot::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::string > Ifc2x3::IfcRoot::Description() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcRoot::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcRoot::declaration() const { return *((IfcParse::entity*)IFC2X3_types[732]); }
const IfcParse::entity& Ifc2x3::IfcRoot::Class() { return *((IfcParse::entity*)IFC2X3_types[732]); }
// Ifc2x3::IfcRoot::IfcRoot(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcRoot::IfcRoot(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }; populate_derived(); }

// Function implementations for IfcRoundedEdgeFeature
std::optional< double > Ifc2x3::IfcRoundedEdgeFeature::Radius() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcRoundedEdgeFeature::setRadius(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcRoundedEdgeFeature::declaration() const { return *((IfcParse::entity*)IFC2X3_types[736]); }
const IfcParse::entity& Ifc2x3::IfcRoundedEdgeFeature::Class() { return *((IfcParse::entity*)IFC2X3_types[736]); }
// Ifc2x3::IfcRoundedEdgeFeature::IfcRoundedEdgeFeature(const std::weak_ptr<InstanceData>& e) : IfcEdgeFeature(e) { }
// Ifc2x3::IfcRoundedEdgeFeature::IfcRoundedEdgeFeature(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< double > v9_FeatureLength, std::optional< double > v10_Radius) : IfcEdgeFeature(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_FeatureLength) {set_attribute_value(8, (*v9_FeatureLength)); } if (v10_Radius) {set_attribute_value(9, (*v10_Radius)); }; populate_derived(); }

// Function implementations for IfcRoundedRectangleProfileDef
double Ifc2x3::IfcRoundedRectangleProfileDef::RoundingRadius() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcRoundedRectangleProfileDef::setRoundingRadius(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcRoundedRectangleProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[737]); }
const IfcParse::entity& Ifc2x3::IfcRoundedRectangleProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[737]); }
// Ifc2x3::IfcRoundedRectangleProfileDef::IfcRoundedRectangleProfileDef(const std::weak_ptr<InstanceData>& e) : IfcRectangleProfileDef(e) { }
// Ifc2x3::IfcRoundedRectangleProfileDef::IfcRoundedRectangleProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_XDim, double v5_YDim, double v6_RoundingRadius) : IfcRectangleProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_XDim));set_attribute_value(4, (v5_YDim));set_attribute_value(5, (v6_RoundingRadius));; populate_derived(); }

// Function implementations for IfcSIUnit
std::optional< ::Ifc2x3::IfcSIPrefix::Value > Ifc2x3::IfcSIUnit::Prefix() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcSIPrefix::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcSIUnit::setPrefix(const std::optional< ::Ifc2x3::IfcSIPrefix::Value >& v) { if (v) {set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcSIPrefix::Class(), (size_t) *v));} else {unset_attribute_value(2);} }
::Ifc2x3::IfcSIUnitName::Value Ifc2x3::IfcSIUnit::Name() const {  return ::Ifc2x3::IfcSIUnitName::FromString(get_attribute_value(3)); }
void Ifc2x3::IfcSIUnit::setName(const ::Ifc2x3::IfcSIUnitName::Value& v) { set_attribute_value(3, EnumerationReference(&::Ifc2x3::IfcSIUnitName::Class(), (size_t) v));if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcSIUnit::declaration() const { return *((IfcParse::entity*)IFC2X3_types[765]); }
const IfcParse::entity& Ifc2x3::IfcSIUnit::Class() { return *((IfcParse::entity*)IFC2X3_types[765]); }
// Ifc2x3::IfcSIUnit::IfcSIUnit(const std::weak_ptr<InstanceData>& e) : IfcNamedUnit(e) { }
// Ifc2x3::IfcSIUnit::IfcSIUnit(::Ifc2x3::IfcUnitEnum::Value v2_UnitType, std::optional< ::Ifc2x3::IfcSIPrefix::Value > v3_Prefix, ::Ifc2x3::IfcSIUnitName::Value v4_Name) : IfcNamedUnit(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(1, (EnumerationReference(&::Ifc2x3::IfcUnitEnum::Class(),(size_t)v2_UnitType))); if (v3_Prefix) {set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcSIPrefix::Class(),(size_t)*v3_Prefix))); }set_attribute_value(3, (EnumerationReference(&::Ifc2x3::IfcSIUnitName::Class(),(size_t)v4_Name)));; populate_derived(); }

// Function implementations for IfcSanitaryTerminalType
::Ifc2x3::IfcSanitaryTerminalTypeEnum::Value Ifc2x3::IfcSanitaryTerminalType::PredefinedType() const {  return ::Ifc2x3::IfcSanitaryTerminalTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcSanitaryTerminalType::setPredefinedType(const ::Ifc2x3::IfcSanitaryTerminalTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcSanitaryTerminalTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcSanitaryTerminalType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[738]); }
const IfcParse::entity& Ifc2x3::IfcSanitaryTerminalType::Class() { return *((IfcParse::entity*)IFC2X3_types[738]); }
// Ifc2x3::IfcSanitaryTerminalType::IfcSanitaryTerminalType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcSanitaryTerminalType::IfcSanitaryTerminalType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcSanitaryTerminalTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcSanitaryTerminalTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcScheduleTimeControl
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::ActualStart() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setActualStart(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::EarlyStart() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setEarlyStart(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::LateStart() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setLateStart(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::ScheduleStart() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setScheduleStart(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::ActualFinish() const { if(get_attribute_value(9).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setActualFinish(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::EarlyFinish() const { if(get_attribute_value(10).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setEarlyFinish(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::LateFinish() const { if(get_attribute_value(11).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(11))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setLateFinish(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::ScheduleFinish() const { if(get_attribute_value(12).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(12))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setScheduleFinish(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::ScheduleDuration() const { if(get_attribute_value(13).isNull()) { return std::nullopt; } double v = get_attribute_value(13); return v; }
void Ifc2x3::IfcScheduleTimeControl::setScheduleDuration(const std::optional< double >& v) { if (v) {set_attribute_value(13, *v);} else {unset_attribute_value(13);} }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::ActualDuration() const { if(get_attribute_value(14).isNull()) { return std::nullopt; } double v = get_attribute_value(14); return v; }
void Ifc2x3::IfcScheduleTimeControl::setActualDuration(const std::optional< double >& v) { if (v) {set_attribute_value(14, *v);} else {unset_attribute_value(14);} }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::RemainingTime() const { if(get_attribute_value(15).isNull()) { return std::nullopt; } double v = get_attribute_value(15); return v; }
void Ifc2x3::IfcScheduleTimeControl::setRemainingTime(const std::optional< double >& v) { if (v) {set_attribute_value(15, *v);} else {unset_attribute_value(15);} }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::FreeFloat() const { if(get_attribute_value(16).isNull()) { return std::nullopt; } double v = get_attribute_value(16); return v; }
void Ifc2x3::IfcScheduleTimeControl::setFreeFloat(const std::optional< double >& v) { if (v) {set_attribute_value(16, *v);} else {unset_attribute_value(16);} }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::TotalFloat() const { if(get_attribute_value(17).isNull()) { return std::nullopt; } double v = get_attribute_value(17); return v; }
void Ifc2x3::IfcScheduleTimeControl::setTotalFloat(const std::optional< double >& v) { if (v) {set_attribute_value(17, *v);} else {unset_attribute_value(17);} }
std::optional< bool > Ifc2x3::IfcScheduleTimeControl::IsCritical() const { if(get_attribute_value(18).isNull()) { return std::nullopt; } bool v = get_attribute_value(18); return v; }
void Ifc2x3::IfcScheduleTimeControl::setIsCritical(const std::optional< bool >& v) { if (v) {set_attribute_value(18, *v);} else {unset_attribute_value(18);} }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcScheduleTimeControl::StatusTime() const { if(get_attribute_value(19).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(19))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcScheduleTimeControl::setStatusTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(19, v);if constexpr (false)unset_attribute_value(19); }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::StartFloat() const { if(get_attribute_value(20).isNull()) { return std::nullopt; } double v = get_attribute_value(20); return v; }
void Ifc2x3::IfcScheduleTimeControl::setStartFloat(const std::optional< double >& v) { if (v) {set_attribute_value(20, *v);} else {unset_attribute_value(20);} }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::FinishFloat() const { if(get_attribute_value(21).isNull()) { return std::nullopt; } double v = get_attribute_value(21); return v; }
void Ifc2x3::IfcScheduleTimeControl::setFinishFloat(const std::optional< double >& v) { if (v) {set_attribute_value(21, *v);} else {unset_attribute_value(21);} }
std::optional< double > Ifc2x3::IfcScheduleTimeControl::Completion() const { if(get_attribute_value(22).isNull()) { return std::nullopt; } double v = get_attribute_value(22); return v; }
void Ifc2x3::IfcScheduleTimeControl::setCompletion(const std::optional< double >& v) { if (v) {set_attribute_value(22, *v);} else {unset_attribute_value(22);} }

std::vector<::Ifc2x3::IfcRelAssignsTasks> Ifc2x3::IfcScheduleTimeControl::ScheduleTimeControlAssigned() const { return cast_vector<IfcRelAssignsTasks>(file()->getInverse(data()->id(), IFC2X3_types[669], 7)); }

// const IfcParse::entity& Ifc2x3::IfcScheduleTimeControl::declaration() const { return *((IfcParse::entity*)IFC2X3_types[740]); }
const IfcParse::entity& Ifc2x3::IfcScheduleTimeControl::Class() { return *((IfcParse::entity*)IFC2X3_types[740]); }
// Ifc2x3::IfcScheduleTimeControl::IfcScheduleTimeControl(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcScheduleTimeControl::IfcScheduleTimeControl(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcDateTimeSelect v6_ActualStart, ::Ifc2x3::IfcDateTimeSelect v7_EarlyStart, ::Ifc2x3::IfcDateTimeSelect v8_LateStart, ::Ifc2x3::IfcDateTimeSelect v9_ScheduleStart, ::Ifc2x3::IfcDateTimeSelect v10_ActualFinish, ::Ifc2x3::IfcDateTimeSelect v11_EarlyFinish, ::Ifc2x3::IfcDateTimeSelect v12_LateFinish, ::Ifc2x3::IfcDateTimeSelect v13_ScheduleFinish, std::optional< double > v14_ScheduleDuration, std::optional< double > v15_ActualDuration, std::optional< double > v16_RemainingTime, std::optional< double > v17_FreeFloat, std::optional< double > v18_TotalFloat, std::optional< bool > v19_IsCritical, ::Ifc2x3::IfcDateTimeSelect v20_StatusTime, std::optional< double > v21_StartFloat, std::optional< double > v22_FinishFloat, std::optional< double > v23_Completion) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(23))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ActualStart) {set_attribute_value(5, (*v6_ActualStart)); } if (v7_EarlyStart) {set_attribute_value(6, (*v7_EarlyStart)); } if (v8_LateStart) {set_attribute_value(7, (*v8_LateStart)); } if (v9_ScheduleStart) {set_attribute_value(8, (*v9_ScheduleStart)); } if (v10_ActualFinish) {set_attribute_value(9, (*v10_ActualFinish)); } if (v11_EarlyFinish) {set_attribute_value(10, (*v11_EarlyFinish)); } if (v12_LateFinish) {set_attribute_value(11, (*v12_LateFinish)); } if (v13_ScheduleFinish) {set_attribute_value(12, (*v13_ScheduleFinish)); } if (v14_ScheduleDuration) {set_attribute_value(13, (*v14_ScheduleDuration)); } if (v15_ActualDuration) {set_attribute_value(14, (*v15_ActualDuration)); } if (v16_RemainingTime) {set_attribute_value(15, (*v16_RemainingTime)); } if (v17_FreeFloat) {set_attribute_value(16, (*v17_FreeFloat)); } if (v18_TotalFloat) {set_attribute_value(17, (*v18_TotalFloat)); } if (v19_IsCritical) {set_attribute_value(18, (*v19_IsCritical)); } if (v20_StatusTime) {set_attribute_value(19, (*v20_StatusTime)); } if (v21_StartFloat) {set_attribute_value(20, (*v21_StartFloat)); } if (v22_FinishFloat) {set_attribute_value(21, (*v22_FinishFloat)); } if (v23_Completion) {set_attribute_value(22, (*v23_Completion)); }; populate_derived(); }

// Function implementations for IfcSectionProperties
::Ifc2x3::IfcSectionTypeEnum::Value Ifc2x3::IfcSectionProperties::SectionType() const {  return ::Ifc2x3::IfcSectionTypeEnum::FromString(get_attribute_value(0)); }
void Ifc2x3::IfcSectionProperties::setSectionType(const ::Ifc2x3::IfcSectionTypeEnum::Value& v) { set_attribute_value(0, EnumerationReference(&::Ifc2x3::IfcSectionTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcProfileDef Ifc2x3::IfcSectionProperties::StartProfile() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcProfileDef>(); }
void Ifc2x3::IfcSectionProperties::setStartProfile(const ::Ifc2x3::IfcProfileDef& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcProfileDef Ifc2x3::IfcSectionProperties::EndProfile() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcProfileDef{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcProfileDef>(); }
void Ifc2x3::IfcSectionProperties::setEndProfile(const ::Ifc2x3::IfcProfileDef& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcSectionProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[745]); }
const IfcParse::entity& Ifc2x3::IfcSectionProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[745]); }
// Ifc2x3::IfcSectionProperties::IfcSectionProperties(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcSectionProperties::IfcSectionProperties(::Ifc2x3::IfcSectionTypeEnum::Value v1_SectionType, ::Ifc2x3::IfcProfileDef v2_StartProfile, ::Ifc2x3::IfcProfileDef v3_EndProfile) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcSectionTypeEnum::Class(),(size_t)v1_SectionType)));set_attribute_value(1, (v2_StartProfile)); if (v3_EndProfile) {set_attribute_value(2, (*v3_EndProfile)); }; populate_derived(); }

// Function implementations for IfcSectionReinforcementProperties
double Ifc2x3::IfcSectionReinforcementProperties::LongitudinalStartPosition() const {  double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcSectionReinforcementProperties::setLongitudinalStartPosition(const double& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcSectionReinforcementProperties::LongitudinalEndPosition() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcSectionReinforcementProperties::setLongitudinalEndPosition(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< double > Ifc2x3::IfcSectionReinforcementProperties::TransversePosition() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcSectionReinforcementProperties::setTransversePosition(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
::Ifc2x3::IfcReinforcingBarRoleEnum::Value Ifc2x3::IfcSectionReinforcementProperties::ReinforcementRole() const {  return ::Ifc2x3::IfcReinforcingBarRoleEnum::FromString(get_attribute_value(3)); }
void Ifc2x3::IfcSectionReinforcementProperties::setReinforcementRole(const ::Ifc2x3::IfcReinforcingBarRoleEnum::Value& v) { set_attribute_value(3, EnumerationReference(&::Ifc2x3::IfcReinforcingBarRoleEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcSectionProperties Ifc2x3::IfcSectionReinforcementProperties::SectionDefinition() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcSectionProperties>(); }
void Ifc2x3::IfcSectionReinforcementProperties::setSectionDefinition(const ::Ifc2x3::IfcSectionProperties& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::vector< ::Ifc2x3::IfcReinforcementBarProperties > Ifc2x3::IfcSectionReinforcementProperties::CrossSectionReinforcementDefinitions() const {  std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcReinforcementBarProperties>(es); }
void Ifc2x3::IfcSectionReinforcementProperties::setCrossSectionReinforcementDefinitions(const std::vector< ::Ifc2x3::IfcReinforcementBarProperties >& v) { set_attribute_value(5, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcSectionReinforcementProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[746]); }
const IfcParse::entity& Ifc2x3::IfcSectionReinforcementProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[746]); }
// Ifc2x3::IfcSectionReinforcementProperties::IfcSectionReinforcementProperties(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcSectionReinforcementProperties::IfcSectionReinforcementProperties(double v1_LongitudinalStartPosition, double v2_LongitudinalEndPosition, std::optional< double > v3_TransversePosition, ::Ifc2x3::IfcReinforcingBarRoleEnum::Value v4_ReinforcementRole, ::Ifc2x3::IfcSectionProperties v5_SectionDefinition, std::vector< ::Ifc2x3::IfcReinforcementBarProperties > v6_CrossSectionReinforcementDefinitions) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_LongitudinalStartPosition));set_attribute_value(1, (v2_LongitudinalEndPosition)); if (v3_TransversePosition) {set_attribute_value(2, (*v3_TransversePosition)); }set_attribute_value(3, (EnumerationReference(&::Ifc2x3::IfcReinforcingBarRoleEnum::Class(),(size_t)v4_ReinforcementRole)));set_attribute_value(4, (v5_SectionDefinition));set_attribute_value(5, (v6_CrossSectionReinforcementDefinitions)->generalize());; populate_derived(); }

// Function implementations for IfcSectionedSpine
::Ifc2x3::IfcCompositeCurve Ifc2x3::IfcSectionedSpine::SpineCurve() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCompositeCurve>(); }
void Ifc2x3::IfcSectionedSpine::setSpineCurve(const ::Ifc2x3::IfcCompositeCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcProfileDef > Ifc2x3::IfcSectionedSpine::CrossSections() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcProfileDef>(es); }
void Ifc2x3::IfcSectionedSpine::setCrossSections(const std::vector< ::Ifc2x3::IfcProfileDef >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
std::vector< ::Ifc2x3::IfcAxis2Placement3D > Ifc2x3::IfcSectionedSpine::CrossSectionPositions() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcAxis2Placement3D>(es); }
void Ifc2x3::IfcSectionedSpine::setCrossSectionPositions(const std::vector< ::Ifc2x3::IfcAxis2Placement3D >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcSectionedSpine::declaration() const { return *((IfcParse::entity*)IFC2X3_types[743]); }
const IfcParse::entity& Ifc2x3::IfcSectionedSpine::Class() { return *((IfcParse::entity*)IFC2X3_types[743]); }
// Ifc2x3::IfcSectionedSpine::IfcSectionedSpine(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcSectionedSpine::IfcSectionedSpine(::Ifc2x3::IfcCompositeCurve v1_SpineCurve, std::vector< ::Ifc2x3::IfcProfileDef > v2_CrossSections, std::vector< ::Ifc2x3::IfcAxis2Placement3D > v3_CrossSectionPositions) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_SpineCurve));set_attribute_value(1, (v2_CrossSections)->generalize());set_attribute_value(2, (v3_CrossSectionPositions)->generalize());; populate_derived(); }

// Function implementations for IfcSensorType
::Ifc2x3::IfcSensorTypeEnum::Value Ifc2x3::IfcSensorType::PredefinedType() const {  return ::Ifc2x3::IfcSensorTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcSensorType::setPredefinedType(const ::Ifc2x3::IfcSensorTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcSensorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcSensorType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[748]); }
const IfcParse::entity& Ifc2x3::IfcSensorType::Class() { return *((IfcParse::entity*)IFC2X3_types[748]); }
// Ifc2x3::IfcSensorType::IfcSensorType(const std::weak_ptr<InstanceData>& e) : IfcDistributionControlElementType(e) { }
// Ifc2x3::IfcSensorType::IfcSensorType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcSensorTypeEnum::Value v10_PredefinedType) : IfcDistributionControlElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcSensorTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcServiceLife
::Ifc2x3::IfcServiceLifeTypeEnum::Value Ifc2x3::IfcServiceLife::ServiceLifeType() const {  return ::Ifc2x3::IfcServiceLifeTypeEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcServiceLife::setServiceLifeType(const ::Ifc2x3::IfcServiceLifeTypeEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcServiceLifeTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcServiceLife::ServiceLifeDuration() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcServiceLife::setServiceLifeDuration(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcServiceLife::declaration() const { return *((IfcParse::entity*)IFC2X3_types[751]); }
const IfcParse::entity& Ifc2x3::IfcServiceLife::Class() { return *((IfcParse::entity*)IFC2X3_types[751]); }
// Ifc2x3::IfcServiceLife::IfcServiceLife(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcServiceLife::IfcServiceLife(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcServiceLifeTypeEnum::Value v6_ServiceLifeType, double v7_ServiceLifeDuration) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcServiceLifeTypeEnum::Class(),(size_t)v6_ServiceLifeType)));set_attribute_value(6, (v7_ServiceLifeDuration));; populate_derived(); }

// Function implementations for IfcServiceLifeFactor
::Ifc2x3::IfcServiceLifeFactorTypeEnum::Value Ifc2x3::IfcServiceLifeFactor::PredefinedType() const {  return ::Ifc2x3::IfcServiceLifeFactorTypeEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcServiceLifeFactor::setPredefinedType(const ::Ifc2x3::IfcServiceLifeFactorTypeEnum::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcServiceLifeFactorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcMeasureValue Ifc2x3::IfcServiceLifeFactor::UpperValue() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcMeasureValue{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcMeasureValue>(); }
void Ifc2x3::IfcServiceLifeFactor::setUpperValue(const ::Ifc2x3::IfcMeasureValue& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcMeasureValue Ifc2x3::IfcServiceLifeFactor::MostUsedValue() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcMeasureValue>(); }
void Ifc2x3::IfcServiceLifeFactor::setMostUsedValue(const ::Ifc2x3::IfcMeasureValue& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcMeasureValue Ifc2x3::IfcServiceLifeFactor::LowerValue() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcMeasureValue{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcMeasureValue>(); }
void Ifc2x3::IfcServiceLifeFactor::setLowerValue(const ::Ifc2x3::IfcMeasureValue& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcServiceLifeFactor::declaration() const { return *((IfcParse::entity*)IFC2X3_types[752]); }
const IfcParse::entity& Ifc2x3::IfcServiceLifeFactor::Class() { return *((IfcParse::entity*)IFC2X3_types[752]); }
// Ifc2x3::IfcServiceLifeFactor::IfcServiceLifeFactor(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcServiceLifeFactor::IfcServiceLifeFactor(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcServiceLifeFactorTypeEnum::Value v5_PredefinedType, ::Ifc2x3::IfcMeasureValue v6_UpperValue, ::Ifc2x3::IfcMeasureValue v7_MostUsedValue, ::Ifc2x3::IfcMeasureValue v8_LowerValue) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcServiceLifeFactorTypeEnum::Class(),(size_t)v5_PredefinedType))); if (v6_UpperValue) {set_attribute_value(5, (*v6_UpperValue)); }set_attribute_value(6, (v7_MostUsedValue)); if (v8_LowerValue) {set_attribute_value(7, (*v8_LowerValue)); }; populate_derived(); }

// Function implementations for IfcShapeAspect
std::vector< ::Ifc2x3::IfcShapeModel > Ifc2x3::IfcShapeAspect::ShapeRepresentations() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcShapeModel>(es); }
void Ifc2x3::IfcShapeAspect::setShapeRepresentations(const std::vector< ::Ifc2x3::IfcShapeModel >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcShapeAspect::Name() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcShapeAspect::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcShapeAspect::Description() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcShapeAspect::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
boost::logic::tribool Ifc2x3::IfcShapeAspect::ProductDefinitional() const {  boost::logic::tribool v = get_attribute_value(3); return v; }
void Ifc2x3::IfcShapeAspect::setProductDefinitional(const boost::logic::tribool& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcProductDefinitionShape Ifc2x3::IfcShapeAspect::PartOfProductDefinitionShape() const {  return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcProductDefinitionShape>(); }
void Ifc2x3::IfcShapeAspect::setPartOfProductDefinitionShape(const ::Ifc2x3::IfcProductDefinitionShape& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcShapeAspect::declaration() const { return *((IfcParse::entity*)IFC2X3_types[755]); }
const IfcParse::entity& Ifc2x3::IfcShapeAspect::Class() { return *((IfcParse::entity*)IFC2X3_types[755]); }
// Ifc2x3::IfcShapeAspect::IfcShapeAspect(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcShapeAspect::IfcShapeAspect(std::vector< ::Ifc2x3::IfcShapeModel > v1_ShapeRepresentations, std::optional< std::string > v2_Name, std::optional< std::string > v3_Description, boost::logic::tribool v4_ProductDefinitional, ::Ifc2x3::IfcProductDefinitionShape v5_PartOfProductDefinitionShape) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_ShapeRepresentations)->generalize()); if (v2_Name) {set_attribute_value(1, (*v2_Name)); } if (v3_Description) {set_attribute_value(2, (*v3_Description)); }set_attribute_value(3, (v4_ProductDefinitional));set_attribute_value(4, (v5_PartOfProductDefinitionShape));; populate_derived(); }

// Function implementations for IfcShapeModel

std::vector<::Ifc2x3::IfcShapeAspect> Ifc2x3::IfcShapeModel::OfShapeAspect() const { return cast_vector<IfcShapeAspect>(file()->getInverse(data()->id(), IFC2X3_types[755], 0)); }

// const IfcParse::entity& Ifc2x3::IfcShapeModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[756]); }
const IfcParse::entity& Ifc2x3::IfcShapeModel::Class() { return *((IfcParse::entity*)IFC2X3_types[756]); }
// Ifc2x3::IfcShapeModel::IfcShapeModel(const std::weak_ptr<InstanceData>& e) : IfcRepresentation(e) { }
// Ifc2x3::IfcShapeModel::IfcShapeModel(::Ifc2x3::IfcRepresentationContext v1_ContextOfItems, std::optional< std::string > v2_RepresentationIdentifier, std::optional< std::string > v3_RepresentationType, std::vector< ::Ifc2x3::IfcRepresentationItem > v4_Items) : IfcRepresentation(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ContextOfItems)); if (v2_RepresentationIdentifier) {set_attribute_value(1, (*v2_RepresentationIdentifier)); } if (v3_RepresentationType) {set_attribute_value(2, (*v3_RepresentationType)); }set_attribute_value(3, (v4_Items)->generalize());; populate_derived(); }

// Function implementations for IfcShapeRepresentation


// const IfcParse::entity& Ifc2x3::IfcShapeRepresentation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[757]); }
const IfcParse::entity& Ifc2x3::IfcShapeRepresentation::Class() { return *((IfcParse::entity*)IFC2X3_types[757]); }
// Ifc2x3::IfcShapeRepresentation::IfcShapeRepresentation(const std::weak_ptr<InstanceData>& e) : IfcShapeModel(e) { }
// Ifc2x3::IfcShapeRepresentation::IfcShapeRepresentation(::Ifc2x3::IfcRepresentationContext v1_ContextOfItems, std::optional< std::string > v2_RepresentationIdentifier, std::optional< std::string > v3_RepresentationType, std::vector< ::Ifc2x3::IfcRepresentationItem > v4_Items) : IfcShapeModel(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ContextOfItems)); if (v2_RepresentationIdentifier) {set_attribute_value(1, (*v2_RepresentationIdentifier)); } if (v3_RepresentationType) {set_attribute_value(2, (*v3_RepresentationType)); }set_attribute_value(3, (v4_Items)->generalize());; populate_derived(); }

// Function implementations for IfcShellBasedSurfaceModel
std::vector< ::Ifc2x3::IfcShell > Ifc2x3::IfcShellBasedSurfaceModel::SbsmBoundary() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcShell>(es); }
void Ifc2x3::IfcShellBasedSurfaceModel::setSbsmBoundary(const std::vector< ::Ifc2x3::IfcShell >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcShellBasedSurfaceModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[760]); }
const IfcParse::entity& Ifc2x3::IfcShellBasedSurfaceModel::Class() { return *((IfcParse::entity*)IFC2X3_types[760]); }
// Ifc2x3::IfcShellBasedSurfaceModel::IfcShellBasedSurfaceModel(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcShellBasedSurfaceModel::IfcShellBasedSurfaceModel(std::vector< ::Ifc2x3::IfcShell > v1_SbsmBoundary) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_SbsmBoundary)->generalize());; populate_derived(); }

// Function implementations for IfcSimpleProperty


// const IfcParse::entity& Ifc2x3::IfcSimpleProperty::declaration() const { return *((IfcParse::entity*)IFC2X3_types[761]); }
const IfcParse::entity& Ifc2x3::IfcSimpleProperty::Class() { return *((IfcParse::entity*)IFC2X3_types[761]); }
// Ifc2x3::IfcSimpleProperty::IfcSimpleProperty(const std::weak_ptr<InstanceData>& e) : IfcProperty(e) { }
// Ifc2x3::IfcSimpleProperty::IfcSimpleProperty(std::string v1_Name, std::optional< std::string > v2_Description) : IfcProperty(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }; populate_derived(); }

// Function implementations for IfcSite
std::optional< std::vector< int > /*[3:4]*/ > Ifc2x3::IfcSite::RefLatitude() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::vector< int > /*[3:4]*/ v = get_attribute_value(9); return v; }
void Ifc2x3::IfcSite::setRefLatitude(const std::optional< std::vector< int > /*[3:4]*/ >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< std::vector< int > /*[3:4]*/ > Ifc2x3::IfcSite::RefLongitude() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } std::vector< int > /*[3:4]*/ v = get_attribute_value(10); return v; }
void Ifc2x3::IfcSite::setRefLongitude(const std::optional< std::vector< int > /*[3:4]*/ >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcSite::RefElevation() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcSite::setRefElevation(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< std::string > Ifc2x3::IfcSite::LandTitleNumber() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } std::string v = get_attribute_value(12); return v; }
void Ifc2x3::IfcSite::setLandTitleNumber(const std::optional< std::string >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }
::Ifc2x3::IfcPostalAddress Ifc2x3::IfcSite::SiteAddress() const { if(get_attribute_value(13).isNull()) { return ::Ifc2x3::IfcPostalAddress{}; } return ((express::Base)(get_attribute_value(13))).as<::Ifc2x3::IfcPostalAddress>(); }
void Ifc2x3::IfcSite::setSiteAddress(const ::Ifc2x3::IfcPostalAddress& v) { set_attribute_value(13, v);if constexpr (false)unset_attribute_value(13); }


// const IfcParse::entity& Ifc2x3::IfcSite::declaration() const { return *((IfcParse::entity*)IFC2X3_types[764]); }
const IfcParse::entity& Ifc2x3::IfcSite::Class() { return *((IfcParse::entity*)IFC2X3_types[764]); }
// Ifc2x3::IfcSite::IfcSite(const std::weak_ptr<InstanceData>& e) : IfcSpatialStructureElement(e) { }
// Ifc2x3::IfcSite::IfcSite(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_LongName, ::Ifc2x3::IfcElementCompositionEnum::Value v9_CompositionType, std::optional< std::vector< int > /*[3:4]*/ > v10_RefLatitude, std::optional< std::vector< int > /*[3:4]*/ > v11_RefLongitude, std::optional< double > v12_RefElevation, std::optional< std::string > v13_LandTitleNumber, ::Ifc2x3::IfcPostalAddress v14_SiteAddress) : IfcSpatialStructureElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(14))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_LongName) {set_attribute_value(7, (*v8_LongName)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(),(size_t)v9_CompositionType))); if (v10_RefLatitude) {set_attribute_value(9, (*v10_RefLatitude)); } if (v11_RefLongitude) {set_attribute_value(10, (*v11_RefLongitude)); } if (v12_RefElevation) {set_attribute_value(11, (*v12_RefElevation)); } if (v13_LandTitleNumber) {set_attribute_value(12, (*v13_LandTitleNumber)); } if (v14_SiteAddress) {set_attribute_value(13, (*v14_SiteAddress)); }; populate_derived(); }

// Function implementations for IfcSlab
std::optional< ::Ifc2x3::IfcSlabTypeEnum::Value > Ifc2x3::IfcSlab::PredefinedType() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcSlabTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcSlab::setPredefinedType(const std::optional< ::Ifc2x3::IfcSlabTypeEnum::Value >& v) { if (v) {set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcSlabTypeEnum::Class(), (size_t) *v));} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcSlab::declaration() const { return *((IfcParse::entity*)IFC2X3_types[768]); }
const IfcParse::entity& Ifc2x3::IfcSlab::Class() { return *((IfcParse::entity*)IFC2X3_types[768]); }
// Ifc2x3::IfcSlab::IfcSlab(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcSlab::IfcSlab(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< ::Ifc2x3::IfcSlabTypeEnum::Value > v9_PredefinedType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_PredefinedType) {set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcSlabTypeEnum::Class(),(size_t)*v9_PredefinedType))); }; populate_derived(); }

// Function implementations for IfcSlabType
::Ifc2x3::IfcSlabTypeEnum::Value Ifc2x3::IfcSlabType::PredefinedType() const {  return ::Ifc2x3::IfcSlabTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcSlabType::setPredefinedType(const ::Ifc2x3::IfcSlabTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcSlabTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcSlabType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[769]); }
const IfcParse::entity& Ifc2x3::IfcSlabType::Class() { return *((IfcParse::entity*)IFC2X3_types[769]); }
// Ifc2x3::IfcSlabType::IfcSlabType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcSlabType::IfcSlabType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcSlabTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcSlabTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcSlippageConnectionCondition
std::optional< double > Ifc2x3::IfcSlippageConnectionCondition::SlippageX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcSlippageConnectionCondition::setSlippageX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcSlippageConnectionCondition::SlippageY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcSlippageConnectionCondition::setSlippageY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcSlippageConnectionCondition::SlippageZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcSlippageConnectionCondition::setSlippageZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcSlippageConnectionCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[771]); }
const IfcParse::entity& Ifc2x3::IfcSlippageConnectionCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[771]); }
// Ifc2x3::IfcSlippageConnectionCondition::IfcSlippageConnectionCondition(const std::weak_ptr<InstanceData>& e) : IfcStructuralConnectionCondition(e) { }
// Ifc2x3::IfcSlippageConnectionCondition::IfcSlippageConnectionCondition(std::optional< std::string > v1_Name, std::optional< double > v2_SlippageX, std::optional< double > v3_SlippageY, std::optional< double > v4_SlippageZ) : IfcStructuralConnectionCondition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_SlippageX) {set_attribute_value(1, (*v2_SlippageX)); } if (v3_SlippageY) {set_attribute_value(2, (*v3_SlippageY)); } if (v4_SlippageZ) {set_attribute_value(3, (*v4_SlippageZ)); }; populate_derived(); }

// Function implementations for IfcSolidModel


// const IfcParse::entity& Ifc2x3::IfcSolidModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[773]); }
const IfcParse::entity& Ifc2x3::IfcSolidModel::Class() { return *((IfcParse::entity*)IFC2X3_types[773]); }
// Ifc2x3::IfcSolidModel::IfcSolidModel(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcSolidModel::IfcSolidModel() : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcSoundProperties
bool Ifc2x3::IfcSoundProperties::IsAttenuating() const {  bool v = get_attribute_value(4); return v; }
void Ifc2x3::IfcSoundProperties::setIsAttenuating(const bool& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::optional< ::Ifc2x3::IfcSoundScaleEnum::Value > Ifc2x3::IfcSoundProperties::SoundScale() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcSoundScaleEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcSoundProperties::setSoundScale(const std::optional< ::Ifc2x3::IfcSoundScaleEnum::Value >& v) { if (v) {set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcSoundScaleEnum::Class(), (size_t) *v));} else {unset_attribute_value(5);} }
std::vector< ::Ifc2x3::IfcSoundValue > Ifc2x3::IfcSoundProperties::SoundValues() const {  std::vector<express::Base> es = get_attribute_value(6); return cast_vector<::Ifc2x3::IfcSoundValue>(es); }
void Ifc2x3::IfcSoundProperties::setSoundValues(const std::vector< ::Ifc2x3::IfcSoundValue >& v) { set_attribute_value(6, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcSoundProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[776]); }
const IfcParse::entity& Ifc2x3::IfcSoundProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[776]); }
// Ifc2x3::IfcSoundProperties::IfcSoundProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcSoundProperties::IfcSoundProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, bool v5_IsAttenuating, std::optional< ::Ifc2x3::IfcSoundScaleEnum::Value > v6_SoundScale, std::vector< ::Ifc2x3::IfcSoundValue > v7_SoundValues) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (v5_IsAttenuating)); if (v6_SoundScale) {set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcSoundScaleEnum::Class(),(size_t)*v6_SoundScale))); }set_attribute_value(6, (v7_SoundValues)->generalize());; populate_derived(); }

// Function implementations for IfcSoundValue
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcSoundValue::SoundLevelTimeSeries() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcSoundValue::setSoundLevelTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcSoundValue::Frequency() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcSoundValue::setFrequency(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcDerivedMeasureValue Ifc2x3::IfcSoundValue::SoundLevelSingleValue() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcDerivedMeasureValue{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcDerivedMeasureValue>(); }
void Ifc2x3::IfcSoundValue::setSoundLevelSingleValue(const ::Ifc2x3::IfcDerivedMeasureValue& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcSoundValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[778]); }
const IfcParse::entity& Ifc2x3::IfcSoundValue::Class() { return *((IfcParse::entity*)IFC2X3_types[778]); }
// Ifc2x3::IfcSoundValue::IfcSoundValue(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcSoundValue::IfcSoundValue(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcTimeSeries v5_SoundLevelTimeSeries, double v6_Frequency, ::Ifc2x3::IfcDerivedMeasureValue v7_SoundLevelSingleValue) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_SoundLevelTimeSeries) {set_attribute_value(4, (*v5_SoundLevelTimeSeries)); }set_attribute_value(5, (v6_Frequency)); if (v7_SoundLevelSingleValue) {set_attribute_value(6, (*v7_SoundLevelSingleValue)); }; populate_derived(); }

// Function implementations for IfcSpace
::Ifc2x3::IfcInternalOrExternalEnum::Value Ifc2x3::IfcSpace::InteriorOrExteriorSpace() const {  return ::Ifc2x3::IfcInternalOrExternalEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcSpace::setInteriorOrExteriorSpace(const ::Ifc2x3::IfcInternalOrExternalEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcInternalOrExternalEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }
std::optional< double > Ifc2x3::IfcSpace::ElevationWithFlooring() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcSpace::setElevationWithFlooring(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }

std::vector<::Ifc2x3::IfcRelCoversSpaces> Ifc2x3::IfcSpace::HasCoverings() const { return cast_vector<IfcRelCoversSpaces>(file()->getInverse(data()->id(), IFC2X3_types[700], 4)); }
std::vector<::Ifc2x3::IfcRelSpaceBoundary> Ifc2x3::IfcSpace::BoundedBy() const { return cast_vector<IfcRelSpaceBoundary>(file()->getInverse(data()->id(), IFC2X3_types[716], 4)); }

// const IfcParse::entity& Ifc2x3::IfcSpace::declaration() const { return *((IfcParse::entity*)IFC2X3_types[779]); }
const IfcParse::entity& Ifc2x3::IfcSpace::Class() { return *((IfcParse::entity*)IFC2X3_types[779]); }
// Ifc2x3::IfcSpace::IfcSpace(const std::weak_ptr<InstanceData>& e) : IfcSpatialStructureElement(e) { }
// Ifc2x3::IfcSpace::IfcSpace(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_LongName, ::Ifc2x3::IfcElementCompositionEnum::Value v9_CompositionType, ::Ifc2x3::IfcInternalOrExternalEnum::Value v10_InteriorOrExteriorSpace, std::optional< double > v11_ElevationWithFlooring) : IfcSpatialStructureElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_LongName) {set_attribute_value(7, (*v8_LongName)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(),(size_t)v9_CompositionType)));set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcInternalOrExternalEnum::Class(),(size_t)v10_InteriorOrExteriorSpace))); if (v11_ElevationWithFlooring) {set_attribute_value(10, (*v11_ElevationWithFlooring)); }; populate_derived(); }

// Function implementations for IfcSpaceHeaterType
::Ifc2x3::IfcSpaceHeaterTypeEnum::Value Ifc2x3::IfcSpaceHeaterType::PredefinedType() const {  return ::Ifc2x3::IfcSpaceHeaterTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcSpaceHeaterType::setPredefinedType(const ::Ifc2x3::IfcSpaceHeaterTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcSpaceHeaterTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcSpaceHeaterType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[780]); }
const IfcParse::entity& Ifc2x3::IfcSpaceHeaterType::Class() { return *((IfcParse::entity*)IFC2X3_types[780]); }
// Ifc2x3::IfcSpaceHeaterType::IfcSpaceHeaterType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcSpaceHeaterType::IfcSpaceHeaterType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcSpaceHeaterTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcSpaceHeaterTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcSpaceProgram
std::string Ifc2x3::IfcSpaceProgram::SpaceProgramIdentifier() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcSpaceProgram::setSpaceProgramIdentifier(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
std::optional< double > Ifc2x3::IfcSpaceProgram::MaxRequiredArea() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcSpaceProgram::setMaxRequiredArea(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcSpaceProgram::MinRequiredArea() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcSpaceProgram::setMinRequiredArea(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
::Ifc2x3::IfcSpatialStructureElement Ifc2x3::IfcSpaceProgram::RequestedLocation() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcSpatialStructureElement{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcSpatialStructureElement>(); }
void Ifc2x3::IfcSpaceProgram::setRequestedLocation(const ::Ifc2x3::IfcSpatialStructureElement& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
double Ifc2x3::IfcSpaceProgram::StandardRequiredArea() const {  double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcSpaceProgram::setStandardRequiredArea(const double& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }

std::vector<::Ifc2x3::IfcRelInteractionRequirements> Ifc2x3::IfcSpaceProgram::HasInteractionReqsFrom() const { return cast_vector<IfcRelInteractionRequirements>(file()->getInverse(data()->id(), IFC2X3_types[707], 7)); }
std::vector<::Ifc2x3::IfcRelInteractionRequirements> Ifc2x3::IfcSpaceProgram::HasInteractionReqsTo() const { return cast_vector<IfcRelInteractionRequirements>(file()->getInverse(data()->id(), IFC2X3_types[707], 8)); }

// const IfcParse::entity& Ifc2x3::IfcSpaceProgram::declaration() const { return *((IfcParse::entity*)IFC2X3_types[782]); }
const IfcParse::entity& Ifc2x3::IfcSpaceProgram::Class() { return *((IfcParse::entity*)IFC2X3_types[782]); }
// Ifc2x3::IfcSpaceProgram::IfcSpaceProgram(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcSpaceProgram::IfcSpaceProgram(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_SpaceProgramIdentifier, std::optional< double > v7_MaxRequiredArea, std::optional< double > v8_MinRequiredArea, ::Ifc2x3::IfcSpatialStructureElement v9_RequestedLocation, double v10_StandardRequiredArea) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_SpaceProgramIdentifier)); if (v7_MaxRequiredArea) {set_attribute_value(6, (*v7_MaxRequiredArea)); } if (v8_MinRequiredArea) {set_attribute_value(7, (*v8_MinRequiredArea)); } if (v9_RequestedLocation) {set_attribute_value(8, (*v9_RequestedLocation)); }set_attribute_value(9, (v10_StandardRequiredArea));; populate_derived(); }

// Function implementations for IfcSpaceThermalLoadProperties
std::optional< double > Ifc2x3::IfcSpaceThermalLoadProperties::ApplicableValueRatio() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcSpaceThermalLoadProperties::setApplicableValueRatio(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
::Ifc2x3::IfcThermalLoadSourceEnum::Value Ifc2x3::IfcSpaceThermalLoadProperties::ThermalLoadSource() const {  return ::Ifc2x3::IfcThermalLoadSourceEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcSpaceThermalLoadProperties::setThermalLoadSource(const ::Ifc2x3::IfcThermalLoadSourceEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcThermalLoadSourceEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcPropertySourceEnum::Value Ifc2x3::IfcSpaceThermalLoadProperties::PropertySource() const {  return ::Ifc2x3::IfcPropertySourceEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcSpaceThermalLoadProperties::setPropertySource(const ::Ifc2x3::IfcPropertySourceEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcPropertySourceEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }
std::optional< std::string > Ifc2x3::IfcSpaceThermalLoadProperties::SourceDescription() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcSpaceThermalLoadProperties::setSourceDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
double Ifc2x3::IfcSpaceThermalLoadProperties::MaximumValue() const {  double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcSpaceThermalLoadProperties::setMaximumValue(const double& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
std::optional< double > Ifc2x3::IfcSpaceThermalLoadProperties::MinimumValue() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcSpaceThermalLoadProperties::setMinimumValue(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcSpaceThermalLoadProperties::ThermalLoadTimeSeriesValues() const { if(get_attribute_value(10).isNull()) { return ::Ifc2x3::IfcTimeSeries{}; } return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcSpaceThermalLoadProperties::setThermalLoadTimeSeriesValues(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
std::optional< std::string > Ifc2x3::IfcSpaceThermalLoadProperties::UserDefinedThermalLoadSource() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } std::string v = get_attribute_value(11); return v; }
void Ifc2x3::IfcSpaceThermalLoadProperties::setUserDefinedThermalLoadSource(const std::optional< std::string >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< std::string > Ifc2x3::IfcSpaceThermalLoadProperties::UserDefinedPropertySource() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } std::string v = get_attribute_value(12); return v; }
void Ifc2x3::IfcSpaceThermalLoadProperties::setUserDefinedPropertySource(const std::optional< std::string >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }
::Ifc2x3::IfcThermalLoadTypeEnum::Value Ifc2x3::IfcSpaceThermalLoadProperties::ThermalLoadType() const {  return ::Ifc2x3::IfcThermalLoadTypeEnum::FromString(get_attribute_value(13)); }
void Ifc2x3::IfcSpaceThermalLoadProperties::setThermalLoadType(const ::Ifc2x3::IfcThermalLoadTypeEnum::Value& v) { set_attribute_value(13, EnumerationReference(&::Ifc2x3::IfcThermalLoadTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(13); }


// const IfcParse::entity& Ifc2x3::IfcSpaceThermalLoadProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[783]); }
const IfcParse::entity& Ifc2x3::IfcSpaceThermalLoadProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[783]); }
// Ifc2x3::IfcSpaceThermalLoadProperties::IfcSpaceThermalLoadProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcSpaceThermalLoadProperties::IfcSpaceThermalLoadProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< double > v5_ApplicableValueRatio, ::Ifc2x3::IfcThermalLoadSourceEnum::Value v6_ThermalLoadSource, ::Ifc2x3::IfcPropertySourceEnum::Value v7_PropertySource, std::optional< std::string > v8_SourceDescription, double v9_MaximumValue, std::optional< double > v10_MinimumValue, ::Ifc2x3::IfcTimeSeries v11_ThermalLoadTimeSeriesValues, std::optional< std::string > v12_UserDefinedThermalLoadSource, std::optional< std::string > v13_UserDefinedPropertySource, ::Ifc2x3::IfcThermalLoadTypeEnum::Value v14_ThermalLoadType) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(14))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableValueRatio) {set_attribute_value(4, (*v5_ApplicableValueRatio)); }set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcThermalLoadSourceEnum::Class(),(size_t)v6_ThermalLoadSource)));set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcPropertySourceEnum::Class(),(size_t)v7_PropertySource))); if (v8_SourceDescription) {set_attribute_value(7, (*v8_SourceDescription)); }set_attribute_value(8, (v9_MaximumValue)); if (v10_MinimumValue) {set_attribute_value(9, (*v10_MinimumValue)); } if (v11_ThermalLoadTimeSeriesValues) {set_attribute_value(10, (*v11_ThermalLoadTimeSeriesValues)); } if (v12_UserDefinedThermalLoadSource) {set_attribute_value(11, (*v12_UserDefinedThermalLoadSource)); } if (v13_UserDefinedPropertySource) {set_attribute_value(12, (*v13_UserDefinedPropertySource)); }set_attribute_value(13, (EnumerationReference(&::Ifc2x3::IfcThermalLoadTypeEnum::Class(),(size_t)v14_ThermalLoadType)));; populate_derived(); }

// Function implementations for IfcSpaceType
::Ifc2x3::IfcSpaceTypeEnum::Value Ifc2x3::IfcSpaceType::PredefinedType() const {  return ::Ifc2x3::IfcSpaceTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcSpaceType::setPredefinedType(const ::Ifc2x3::IfcSpaceTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcSpaceTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcSpaceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[784]); }
const IfcParse::entity& Ifc2x3::IfcSpaceType::Class() { return *((IfcParse::entity*)IFC2X3_types[784]); }
// Ifc2x3::IfcSpaceType::IfcSpaceType(const std::weak_ptr<InstanceData>& e) : IfcSpatialStructureElementType(e) { }
// Ifc2x3::IfcSpaceType::IfcSpaceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcSpaceTypeEnum::Value v10_PredefinedType) : IfcSpatialStructureElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcSpaceTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcSpatialStructureElement
std::optional< std::string > Ifc2x3::IfcSpatialStructureElement::LongName() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcSpatialStructureElement::setLongName(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
::Ifc2x3::IfcElementCompositionEnum::Value Ifc2x3::IfcSpatialStructureElement::CompositionType() const {  return ::Ifc2x3::IfcElementCompositionEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcSpatialStructureElement::setCompositionType(const ::Ifc2x3::IfcElementCompositionEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }

std::vector<::Ifc2x3::IfcRelReferencedInSpatialStructure> Ifc2x3::IfcSpatialStructureElement::ReferencesElements() const { return cast_vector<IfcRelReferencedInSpatialStructure>(file()->getInverse(data()->id(), IFC2X3_types[712], 5)); }
std::vector<::Ifc2x3::IfcRelServicesBuildings> Ifc2x3::IfcSpatialStructureElement::ServicedBySystems() const { return cast_vector<IfcRelServicesBuildings>(file()->getInverse(data()->id(), IFC2X3_types[715], 5)); }
std::vector<::Ifc2x3::IfcRelContainedInSpatialStructure> Ifc2x3::IfcSpatialStructureElement::ContainsElements() const { return cast_vector<IfcRelContainedInSpatialStructure>(file()->getInverse(data()->id(), IFC2X3_types[698], 5)); }

// const IfcParse::entity& Ifc2x3::IfcSpatialStructureElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[786]); }
const IfcParse::entity& Ifc2x3::IfcSpatialStructureElement::Class() { return *((IfcParse::entity*)IFC2X3_types[786]); }
// Ifc2x3::IfcSpatialStructureElement::IfcSpatialStructureElement(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcSpatialStructureElement::IfcSpatialStructureElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_LongName, ::Ifc2x3::IfcElementCompositionEnum::Value v9_CompositionType) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_LongName) {set_attribute_value(7, (*v8_LongName)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcElementCompositionEnum::Class(),(size_t)v9_CompositionType)));; populate_derived(); }

// Function implementations for IfcSpatialStructureElementType


// const IfcParse::entity& Ifc2x3::IfcSpatialStructureElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[787]); }
const IfcParse::entity& Ifc2x3::IfcSpatialStructureElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[787]); }
// Ifc2x3::IfcSpatialStructureElementType::IfcSpatialStructureElementType(const std::weak_ptr<InstanceData>& e) : IfcElementType(e) { }
// Ifc2x3::IfcSpatialStructureElementType::IfcSpatialStructureElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcSphere
double Ifc2x3::IfcSphere::Radius() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcSphere::setRadius(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcSphere::declaration() const { return *((IfcParse::entity*)IFC2X3_types[792]); }
const IfcParse::entity& Ifc2x3::IfcSphere::Class() { return *((IfcParse::entity*)IFC2X3_types[792]); }
// Ifc2x3::IfcSphere::IfcSphere(const std::weak_ptr<InstanceData>& e) : IfcCsgPrimitive3D(e) { }
// Ifc2x3::IfcSphere::IfcSphere(::Ifc2x3::IfcAxis2Placement3D v1_Position, double v2_Radius) : IfcCsgPrimitive3D(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Position));set_attribute_value(1, (v2_Radius));; populate_derived(); }

// Function implementations for IfcStackTerminalType
::Ifc2x3::IfcStackTerminalTypeEnum::Value Ifc2x3::IfcStackTerminalType::PredefinedType() const {  return ::Ifc2x3::IfcStackTerminalTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcStackTerminalType::setPredefinedType(const ::Ifc2x3::IfcStackTerminalTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcStackTerminalTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcStackTerminalType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[793]); }
const IfcParse::entity& Ifc2x3::IfcStackTerminalType::Class() { return *((IfcParse::entity*)IFC2X3_types[793]); }
// Ifc2x3::IfcStackTerminalType::IfcStackTerminalType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcStackTerminalType::IfcStackTerminalType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcStackTerminalTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcStackTerminalTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcStair
::Ifc2x3::IfcStairTypeEnum::Value Ifc2x3::IfcStair::ShapeType() const {  return ::Ifc2x3::IfcStairTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcStair::setShapeType(const ::Ifc2x3::IfcStairTypeEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcStairTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcStair::declaration() const { return *((IfcParse::entity*)IFC2X3_types[795]); }
const IfcParse::entity& Ifc2x3::IfcStair::Class() { return *((IfcParse::entity*)IFC2X3_types[795]); }
// Ifc2x3::IfcStair::IfcStair(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcStair::IfcStair(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcStairTypeEnum::Value v9_ShapeType) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcStairTypeEnum::Class(),(size_t)v9_ShapeType)));; populate_derived(); }

// Function implementations for IfcStairFlight
std::optional< int > Ifc2x3::IfcStairFlight::NumberOfRiser() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } int v = get_attribute_value(8); return v; }
void Ifc2x3::IfcStairFlight::setNumberOfRiser(const std::optional< int >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< int > Ifc2x3::IfcStairFlight::NumberOfTreads() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } int v = get_attribute_value(9); return v; }
void Ifc2x3::IfcStairFlight::setNumberOfTreads(const std::optional< int >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcStairFlight::RiserHeight() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcStairFlight::setRiserHeight(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcStairFlight::TreadLength() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcStairFlight::setTreadLength(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }


// const IfcParse::entity& Ifc2x3::IfcStairFlight::declaration() const { return *((IfcParse::entity*)IFC2X3_types[796]); }
const IfcParse::entity& Ifc2x3::IfcStairFlight::Class() { return *((IfcParse::entity*)IFC2X3_types[796]); }
// Ifc2x3::IfcStairFlight::IfcStairFlight(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcStairFlight::IfcStairFlight(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< int > v9_NumberOfRiser, std::optional< int > v10_NumberOfTreads, std::optional< double > v11_RiserHeight, std::optional< double > v12_TreadLength) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_NumberOfRiser) {set_attribute_value(8, (*v9_NumberOfRiser)); } if (v10_NumberOfTreads) {set_attribute_value(9, (*v10_NumberOfTreads)); } if (v11_RiserHeight) {set_attribute_value(10, (*v11_RiserHeight)); } if (v12_TreadLength) {set_attribute_value(11, (*v12_TreadLength)); }; populate_derived(); }

// Function implementations for IfcStairFlightType
::Ifc2x3::IfcStairFlightTypeEnum::Value Ifc2x3::IfcStairFlightType::PredefinedType() const {  return ::Ifc2x3::IfcStairFlightTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcStairFlightType::setPredefinedType(const ::Ifc2x3::IfcStairFlightTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcStairFlightTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcStairFlightType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[797]); }
const IfcParse::entity& Ifc2x3::IfcStairFlightType::Class() { return *((IfcParse::entity*)IFC2X3_types[797]); }
// Ifc2x3::IfcStairFlightType::IfcStairFlightType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcStairFlightType::IfcStairFlightType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcStairFlightTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcStairFlightTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcStructuralAction
bool Ifc2x3::IfcStructuralAction::DestabilizingLoad() const {  bool v = get_attribute_value(9); return v; }
void Ifc2x3::IfcStructuralAction::setDestabilizingLoad(const bool& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
::Ifc2x3::IfcStructuralReaction Ifc2x3::IfcStructuralAction::CausedBy() const { if(get_attribute_value(10).isNull()) { return ::Ifc2x3::IfcStructuralReaction{}; } return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcStructuralReaction>(); }
void Ifc2x3::IfcStructuralAction::setCausedBy(const ::Ifc2x3::IfcStructuralReaction& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }


// const IfcParse::entity& Ifc2x3::IfcStructuralAction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[801]); }
const IfcParse::entity& Ifc2x3::IfcStructuralAction::Class() { return *((IfcParse::entity*)IFC2X3_types[801]); }
// Ifc2x3::IfcStructuralAction::IfcStructuralAction(const std::weak_ptr<InstanceData>& e) : IfcStructuralActivity(e) { }
// Ifc2x3::IfcStructuralAction::IfcStructuralAction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal, bool v10_DestabilizingLoad, ::Ifc2x3::IfcStructuralReaction v11_CausedBy) : IfcStructuralActivity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));set_attribute_value(9, (v10_DestabilizingLoad)); if (v11_CausedBy) {set_attribute_value(10, (*v11_CausedBy)); }; populate_derived(); }

// Function implementations for IfcStructuralActivity
::Ifc2x3::IfcStructuralLoad Ifc2x3::IfcStructuralActivity::AppliedLoad() const {  return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcStructuralLoad>(); }
void Ifc2x3::IfcStructuralActivity::setAppliedLoad(const ::Ifc2x3::IfcStructuralLoad& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcGlobalOrLocalEnum::Value Ifc2x3::IfcStructuralActivity::GlobalOrLocal() const {  return ::Ifc2x3::IfcGlobalOrLocalEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcStructuralActivity::setGlobalOrLocal(const ::Ifc2x3::IfcGlobalOrLocalEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }

std::vector<::Ifc2x3::IfcRelConnectsStructuralActivity> Ifc2x3::IfcStructuralActivity::AssignedToStructuralItem() const { return cast_vector<IfcRelConnectsStructuralActivity>(file()->getInverse(data()->id(), IFC2X3_types[693], 5)); }

// const IfcParse::entity& Ifc2x3::IfcStructuralActivity::declaration() const { return *((IfcParse::entity*)IFC2X3_types[802]); }
const IfcParse::entity& Ifc2x3::IfcStructuralActivity::Class() { return *((IfcParse::entity*)IFC2X3_types[802]); }
// Ifc2x3::IfcStructuralActivity::IfcStructuralActivity(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcStructuralActivity::IfcStructuralActivity(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));; populate_derived(); }

// Function implementations for IfcStructuralAnalysisModel
::Ifc2x3::IfcAnalysisModelTypeEnum::Value Ifc2x3::IfcStructuralAnalysisModel::PredefinedType() const {  return ::Ifc2x3::IfcAnalysisModelTypeEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcStructuralAnalysisModel::setPredefinedType(const ::Ifc2x3::IfcAnalysisModelTypeEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcAnalysisModelTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcStructuralAnalysisModel::OrientationOf2DPlane() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcAxis2Placement3D{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcStructuralAnalysisModel::setOrientationOf2DPlane(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< std::vector< ::Ifc2x3::IfcStructuralLoadGroup > > Ifc2x3::IfcStructuralAnalysisModel::LoadedBy() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcStructuralLoadGroup>(es); }
void Ifc2x3::IfcStructuralAnalysisModel::setLoadedBy(const std::optional< std::vector< ::Ifc2x3::IfcStructuralLoadGroup > >& v) { if (v) {set_attribute_value(7, cast_vector<express::Base>(*v));} else {unset_attribute_value(7);} }
std::optional< std::vector< ::Ifc2x3::IfcStructuralResultGroup > > Ifc2x3::IfcStructuralAnalysisModel::HasResults() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(8); return cast_vector<::Ifc2x3::IfcStructuralResultGroup>(es); }
void Ifc2x3::IfcStructuralAnalysisModel::setHasResults(const std::optional< std::vector< ::Ifc2x3::IfcStructuralResultGroup > >& v) { if (v) {set_attribute_value(8, cast_vector<express::Base>(*v));} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralAnalysisModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[804]); }
const IfcParse::entity& Ifc2x3::IfcStructuralAnalysisModel::Class() { return *((IfcParse::entity*)IFC2X3_types[804]); }
// Ifc2x3::IfcStructuralAnalysisModel::IfcStructuralAnalysisModel(const std::weak_ptr<InstanceData>& e) : IfcSystem(e) { }
// Ifc2x3::IfcStructuralAnalysisModel::IfcStructuralAnalysisModel(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcAnalysisModelTypeEnum::Value v6_PredefinedType, ::Ifc2x3::IfcAxis2Placement3D v7_OrientationOf2DPlane, std::optional< std::vector< ::Ifc2x3::IfcStructuralLoadGroup > > v8_LoadedBy, std::optional< std::vector< ::Ifc2x3::IfcStructuralResultGroup > > v9_HasResults) : IfcSystem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcAnalysisModelTypeEnum::Class(),(size_t)v6_PredefinedType))); if (v7_OrientationOf2DPlane) {set_attribute_value(6, (*v7_OrientationOf2DPlane)); } if (v8_LoadedBy) {set_attribute_value(7, (*v8_LoadedBy)->generalize()); } if (v9_HasResults) {set_attribute_value(8, (*v9_HasResults)->generalize()); }; populate_derived(); }

// Function implementations for IfcStructuralConnection
::Ifc2x3::IfcBoundaryCondition Ifc2x3::IfcStructuralConnection::AppliedCondition() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcBoundaryCondition{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcBoundaryCondition>(); }
void Ifc2x3::IfcStructuralConnection::setAppliedCondition(const ::Ifc2x3::IfcBoundaryCondition& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }

std::vector<::Ifc2x3::IfcRelConnectsStructuralMember> Ifc2x3::IfcStructuralConnection::ConnectsStructuralMembers() const { return cast_vector<IfcRelConnectsStructuralMember>(file()->getInverse(data()->id(), IFC2X3_types[695], 5)); }

// const IfcParse::entity& Ifc2x3::IfcStructuralConnection::declaration() const { return *((IfcParse::entity*)IFC2X3_types[805]); }
const IfcParse::entity& Ifc2x3::IfcStructuralConnection::Class() { return *((IfcParse::entity*)IFC2X3_types[805]); }
// Ifc2x3::IfcStructuralConnection::IfcStructuralConnection(const std::weak_ptr<InstanceData>& e) : IfcStructuralItem(e) { }
// Ifc2x3::IfcStructuralConnection::IfcStructuralConnection(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcBoundaryCondition v8_AppliedCondition) : IfcStructuralItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_AppliedCondition) {set_attribute_value(7, (*v8_AppliedCondition)); }; populate_derived(); }

// Function implementations for IfcStructuralConnectionCondition
std::optional< std::string > Ifc2x3::IfcStructuralConnectionCondition::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcStructuralConnectionCondition::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralConnectionCondition::declaration() const { return *((IfcParse::entity*)IFC2X3_types[806]); }
const IfcParse::entity& Ifc2x3::IfcStructuralConnectionCondition::Class() { return *((IfcParse::entity*)IFC2X3_types[806]); }
// Ifc2x3::IfcStructuralConnectionCondition::IfcStructuralConnectionCondition(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcStructuralConnectionCondition::IfcStructuralConnectionCondition(std::optional< std::string > v1_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }; populate_derived(); }

// Function implementations for IfcStructuralCurveConnection


// const IfcParse::entity& Ifc2x3::IfcStructuralCurveConnection::declaration() const { return *((IfcParse::entity*)IFC2X3_types[807]); }
const IfcParse::entity& Ifc2x3::IfcStructuralCurveConnection::Class() { return *((IfcParse::entity*)IFC2X3_types[807]); }
// Ifc2x3::IfcStructuralCurveConnection::IfcStructuralCurveConnection(const std::weak_ptr<InstanceData>& e) : IfcStructuralConnection(e) { }
// Ifc2x3::IfcStructuralCurveConnection::IfcStructuralCurveConnection(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcBoundaryCondition v8_AppliedCondition) : IfcStructuralConnection(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_AppliedCondition) {set_attribute_value(7, (*v8_AppliedCondition)); }; populate_derived(); }

// Function implementations for IfcStructuralCurveMember
::Ifc2x3::IfcStructuralCurveTypeEnum::Value Ifc2x3::IfcStructuralCurveMember::PredefinedType() const {  return ::Ifc2x3::IfcStructuralCurveTypeEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcStructuralCurveMember::setPredefinedType(const ::Ifc2x3::IfcStructuralCurveTypeEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcStructuralCurveTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcStructuralCurveMember::declaration() const { return *((IfcParse::entity*)IFC2X3_types[808]); }
const IfcParse::entity& Ifc2x3::IfcStructuralCurveMember::Class() { return *((IfcParse::entity*)IFC2X3_types[808]); }
// Ifc2x3::IfcStructuralCurveMember::IfcStructuralCurveMember(const std::weak_ptr<InstanceData>& e) : IfcStructuralMember(e) { }
// Ifc2x3::IfcStructuralCurveMember::IfcStructuralCurveMember(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralCurveTypeEnum::Value v8_PredefinedType) : IfcStructuralMember(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcStructuralCurveTypeEnum::Class(),(size_t)v8_PredefinedType)));; populate_derived(); }

// Function implementations for IfcStructuralCurveMemberVarying


// const IfcParse::entity& Ifc2x3::IfcStructuralCurveMemberVarying::declaration() const { return *((IfcParse::entity*)IFC2X3_types[809]); }
const IfcParse::entity& Ifc2x3::IfcStructuralCurveMemberVarying::Class() { return *((IfcParse::entity*)IFC2X3_types[809]); }
// Ifc2x3::IfcStructuralCurveMemberVarying::IfcStructuralCurveMemberVarying(const std::weak_ptr<InstanceData>& e) : IfcStructuralCurveMember(e) { }
// Ifc2x3::IfcStructuralCurveMemberVarying::IfcStructuralCurveMemberVarying(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralCurveTypeEnum::Value v8_PredefinedType) : IfcStructuralCurveMember(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcStructuralCurveTypeEnum::Class(),(size_t)v8_PredefinedType)));; populate_derived(); }

// Function implementations for IfcStructuralItem

std::vector<::Ifc2x3::IfcRelConnectsStructuralActivity> Ifc2x3::IfcStructuralItem::AssignedStructuralActivity() const { return cast_vector<IfcRelConnectsStructuralActivity>(file()->getInverse(data()->id(), IFC2X3_types[693], 4)); }

// const IfcParse::entity& Ifc2x3::IfcStructuralItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[811]); }
const IfcParse::entity& Ifc2x3::IfcStructuralItem::Class() { return *((IfcParse::entity*)IFC2X3_types[811]); }
// Ifc2x3::IfcStructuralItem::IfcStructuralItem(const std::weak_ptr<InstanceData>& e) : IfcProduct(e) { }
// Ifc2x3::IfcStructuralItem::IfcStructuralItem(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation) : IfcProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }; populate_derived(); }

// Function implementations for IfcStructuralLinearAction
::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value Ifc2x3::IfcStructuralLinearAction::ProjectedOrTrue() const {  return ::Ifc2x3::IfcProjectedOrTrueLengthEnum::FromString(get_attribute_value(11)); }
void Ifc2x3::IfcStructuralLinearAction::setProjectedOrTrue(const ::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value& v) { set_attribute_value(11, EnumerationReference(&::Ifc2x3::IfcProjectedOrTrueLengthEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(11); }


// const IfcParse::entity& Ifc2x3::IfcStructuralLinearAction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[812]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLinearAction::Class() { return *((IfcParse::entity*)IFC2X3_types[812]); }
// Ifc2x3::IfcStructuralLinearAction::IfcStructuralLinearAction(const std::weak_ptr<InstanceData>& e) : IfcStructuralAction(e) { }
// Ifc2x3::IfcStructuralLinearAction::IfcStructuralLinearAction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal, bool v10_DestabilizingLoad, ::Ifc2x3::IfcStructuralReaction v11_CausedBy, ::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value v12_ProjectedOrTrue) : IfcStructuralAction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));set_attribute_value(9, (v10_DestabilizingLoad)); if (v11_CausedBy) {set_attribute_value(10, (*v11_CausedBy)); }set_attribute_value(11, (EnumerationReference(&::Ifc2x3::IfcProjectedOrTrueLengthEnum::Class(),(size_t)v12_ProjectedOrTrue)));; populate_derived(); }

// Function implementations for IfcStructuralLinearActionVarying
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcStructuralLinearActionVarying::VaryingAppliedLoadLocation() const {  return ((express::Base)(get_attribute_value(12))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcStructuralLinearActionVarying::setVaryingAppliedLoadLocation(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
std::vector< ::Ifc2x3::IfcStructuralLoad > Ifc2x3::IfcStructuralLinearActionVarying::SubsequentAppliedLoads() const {  std::vector<express::Base> es = get_attribute_value(13); return cast_vector<::Ifc2x3::IfcStructuralLoad>(es); }
void Ifc2x3::IfcStructuralLinearActionVarying::setSubsequentAppliedLoads(const std::vector< ::Ifc2x3::IfcStructuralLoad >& v) { set_attribute_value(13, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(13); }


// const IfcParse::entity& Ifc2x3::IfcStructuralLinearActionVarying::declaration() const { return *((IfcParse::entity*)IFC2X3_types[813]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLinearActionVarying::Class() { return *((IfcParse::entity*)IFC2X3_types[813]); }
// Ifc2x3::IfcStructuralLinearActionVarying::IfcStructuralLinearActionVarying(const std::weak_ptr<InstanceData>& e) : IfcStructuralLinearAction(e) { }
// Ifc2x3::IfcStructuralLinearActionVarying::IfcStructuralLinearActionVarying(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal, bool v10_DestabilizingLoad, ::Ifc2x3::IfcStructuralReaction v11_CausedBy, ::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value v12_ProjectedOrTrue, ::Ifc2x3::IfcShapeAspect v13_VaryingAppliedLoadLocation, std::vector< ::Ifc2x3::IfcStructuralLoad > v14_SubsequentAppliedLoads) : IfcStructuralLinearAction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(14))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));set_attribute_value(9, (v10_DestabilizingLoad)); if (v11_CausedBy) {set_attribute_value(10, (*v11_CausedBy)); }set_attribute_value(11, (EnumerationReference(&::Ifc2x3::IfcProjectedOrTrueLengthEnum::Class(),(size_t)v12_ProjectedOrTrue)));set_attribute_value(12, (v13_VaryingAppliedLoadLocation));set_attribute_value(13, (v14_SubsequentAppliedLoads)->generalize());; populate_derived(); }

// Function implementations for IfcStructuralLoad
std::optional< std::string > Ifc2x3::IfcStructuralLoad::Name() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcStructuralLoad::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoad::declaration() const { return *((IfcParse::entity*)IFC2X3_types[814]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoad::Class() { return *((IfcParse::entity*)IFC2X3_types[814]); }
// Ifc2x3::IfcStructuralLoad::IfcStructuralLoad(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcStructuralLoad::IfcStructuralLoad(std::optional< std::string > v1_Name) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadGroup
::Ifc2x3::IfcLoadGroupTypeEnum::Value Ifc2x3::IfcStructuralLoadGroup::PredefinedType() const {  return ::Ifc2x3::IfcLoadGroupTypeEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcStructuralLoadGroup::setPredefinedType(const ::Ifc2x3::IfcLoadGroupTypeEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcLoadGroupTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcActionTypeEnum::Value Ifc2x3::IfcStructuralLoadGroup::ActionType() const {  return ::Ifc2x3::IfcActionTypeEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcStructuralLoadGroup::setActionType(const ::Ifc2x3::IfcActionTypeEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcActionTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcActionSourceTypeEnum::Value Ifc2x3::IfcStructuralLoadGroup::ActionSource() const {  return ::Ifc2x3::IfcActionSourceTypeEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcStructuralLoadGroup::setActionSource(const ::Ifc2x3::IfcActionSourceTypeEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcActionSourceTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }
std::optional< double > Ifc2x3::IfcStructuralLoadGroup::Coefficient() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcStructuralLoadGroup::setCoefficient(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< std::string > Ifc2x3::IfcStructuralLoadGroup::Purpose() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } std::string v = get_attribute_value(9); return v; }
void Ifc2x3::IfcStructuralLoadGroup::setPurpose(const std::optional< std::string >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }

std::vector<::Ifc2x3::IfcStructuralResultGroup> Ifc2x3::IfcStructuralLoadGroup::SourceOfResultGroup() const { return cast_vector<IfcStructuralResultGroup>(file()->getInverse(data()->id(), IFC2X3_types[832], 6)); }
std::vector<::Ifc2x3::IfcStructuralAnalysisModel> Ifc2x3::IfcStructuralLoadGroup::LoadGroupFor() const { return cast_vector<IfcStructuralAnalysisModel>(file()->getInverse(data()->id(), IFC2X3_types[804], 7)); }

// const IfcParse::entity& Ifc2x3::IfcStructuralLoadGroup::declaration() const { return *((IfcParse::entity*)IFC2X3_types[815]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadGroup::Class() { return *((IfcParse::entity*)IFC2X3_types[815]); }
// Ifc2x3::IfcStructuralLoadGroup::IfcStructuralLoadGroup(const std::weak_ptr<InstanceData>& e) : IfcGroup(e) { }
// Ifc2x3::IfcStructuralLoadGroup::IfcStructuralLoadGroup(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcLoadGroupTypeEnum::Value v6_PredefinedType, ::Ifc2x3::IfcActionTypeEnum::Value v7_ActionType, ::Ifc2x3::IfcActionSourceTypeEnum::Value v8_ActionSource, std::optional< double > v9_Coefficient, std::optional< std::string > v10_Purpose) : IfcGroup(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcLoadGroupTypeEnum::Class(),(size_t)v6_PredefinedType)));set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcActionTypeEnum::Class(),(size_t)v7_ActionType)));set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcActionSourceTypeEnum::Class(),(size_t)v8_ActionSource))); if (v9_Coefficient) {set_attribute_value(8, (*v9_Coefficient)); } if (v10_Purpose) {set_attribute_value(9, (*v10_Purpose)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadLinearForce
std::optional< double > Ifc2x3::IfcStructuralLoadLinearForce::LinearForceX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcStructuralLoadLinearForce::setLinearForceX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcStructuralLoadLinearForce::LinearForceY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcStructuralLoadLinearForce::setLinearForceY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcStructuralLoadLinearForce::LinearForceZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcStructuralLoadLinearForce::setLinearForceZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcStructuralLoadLinearForce::LinearMomentX() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcStructuralLoadLinearForce::setLinearMomentX(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcStructuralLoadLinearForce::LinearMomentY() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcStructuralLoadLinearForce::setLinearMomentY(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcStructuralLoadLinearForce::LinearMomentZ() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcStructuralLoadLinearForce::setLinearMomentZ(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadLinearForce::declaration() const { return *((IfcParse::entity*)IFC2X3_types[816]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadLinearForce::Class() { return *((IfcParse::entity*)IFC2X3_types[816]); }
// Ifc2x3::IfcStructuralLoadLinearForce::IfcStructuralLoadLinearForce(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoadStatic(e) { }
// Ifc2x3::IfcStructuralLoadLinearForce::IfcStructuralLoadLinearForce(std::optional< std::string > v1_Name, std::optional< double > v2_LinearForceX, std::optional< double > v3_LinearForceY, std::optional< double > v4_LinearForceZ, std::optional< double > v5_LinearMomentX, std::optional< double > v6_LinearMomentY, std::optional< double > v7_LinearMomentZ) : IfcStructuralLoadStatic(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_LinearForceX) {set_attribute_value(1, (*v2_LinearForceX)); } if (v3_LinearForceY) {set_attribute_value(2, (*v3_LinearForceY)); } if (v4_LinearForceZ) {set_attribute_value(3, (*v4_LinearForceZ)); } if (v5_LinearMomentX) {set_attribute_value(4, (*v5_LinearMomentX)); } if (v6_LinearMomentY) {set_attribute_value(5, (*v6_LinearMomentY)); } if (v7_LinearMomentZ) {set_attribute_value(6, (*v7_LinearMomentZ)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadPlanarForce
std::optional< double > Ifc2x3::IfcStructuralLoadPlanarForce::PlanarForceX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcStructuralLoadPlanarForce::setPlanarForceX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcStructuralLoadPlanarForce::PlanarForceY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcStructuralLoadPlanarForce::setPlanarForceY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcStructuralLoadPlanarForce::PlanarForceZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcStructuralLoadPlanarForce::setPlanarForceZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadPlanarForce::declaration() const { return *((IfcParse::entity*)IFC2X3_types[817]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadPlanarForce::Class() { return *((IfcParse::entity*)IFC2X3_types[817]); }
// Ifc2x3::IfcStructuralLoadPlanarForce::IfcStructuralLoadPlanarForce(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoadStatic(e) { }
// Ifc2x3::IfcStructuralLoadPlanarForce::IfcStructuralLoadPlanarForce(std::optional< std::string > v1_Name, std::optional< double > v2_PlanarForceX, std::optional< double > v3_PlanarForceY, std::optional< double > v4_PlanarForceZ) : IfcStructuralLoadStatic(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_PlanarForceX) {set_attribute_value(1, (*v2_PlanarForceX)); } if (v3_PlanarForceY) {set_attribute_value(2, (*v3_PlanarForceY)); } if (v4_PlanarForceZ) {set_attribute_value(3, (*v4_PlanarForceZ)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadSingleDisplacement
std::optional< double > Ifc2x3::IfcStructuralLoadSingleDisplacement::DisplacementX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcStructuralLoadSingleDisplacement::setDisplacementX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleDisplacement::DisplacementY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcStructuralLoadSingleDisplacement::setDisplacementY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleDisplacement::DisplacementZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcStructuralLoadSingleDisplacement::setDisplacementZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleDisplacement::RotationalDisplacementRX() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcStructuralLoadSingleDisplacement::setRotationalDisplacementRX(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleDisplacement::RotationalDisplacementRY() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcStructuralLoadSingleDisplacement::setRotationalDisplacementRY(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleDisplacement::RotationalDisplacementRZ() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcStructuralLoadSingleDisplacement::setRotationalDisplacementRZ(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleDisplacement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[818]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleDisplacement::Class() { return *((IfcParse::entity*)IFC2X3_types[818]); }
// Ifc2x3::IfcStructuralLoadSingleDisplacement::IfcStructuralLoadSingleDisplacement(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoadStatic(e) { }
// Ifc2x3::IfcStructuralLoadSingleDisplacement::IfcStructuralLoadSingleDisplacement(std::optional< std::string > v1_Name, std::optional< double > v2_DisplacementX, std::optional< double > v3_DisplacementY, std::optional< double > v4_DisplacementZ, std::optional< double > v5_RotationalDisplacementRX, std::optional< double > v6_RotationalDisplacementRY, std::optional< double > v7_RotationalDisplacementRZ) : IfcStructuralLoadStatic(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_DisplacementX) {set_attribute_value(1, (*v2_DisplacementX)); } if (v3_DisplacementY) {set_attribute_value(2, (*v3_DisplacementY)); } if (v4_DisplacementZ) {set_attribute_value(3, (*v4_DisplacementZ)); } if (v5_RotationalDisplacementRX) {set_attribute_value(4, (*v5_RotationalDisplacementRX)); } if (v6_RotationalDisplacementRY) {set_attribute_value(5, (*v6_RotationalDisplacementRY)); } if (v7_RotationalDisplacementRZ) {set_attribute_value(6, (*v7_RotationalDisplacementRZ)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadSingleDisplacementDistortion
std::optional< double > Ifc2x3::IfcStructuralLoadSingleDisplacementDistortion::Distortion() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcStructuralLoadSingleDisplacementDistortion::setDistortion(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleDisplacementDistortion::declaration() const { return *((IfcParse::entity*)IFC2X3_types[819]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleDisplacementDistortion::Class() { return *((IfcParse::entity*)IFC2X3_types[819]); }
// Ifc2x3::IfcStructuralLoadSingleDisplacementDistortion::IfcStructuralLoadSingleDisplacementDistortion(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoadSingleDisplacement(e) { }
// Ifc2x3::IfcStructuralLoadSingleDisplacementDistortion::IfcStructuralLoadSingleDisplacementDistortion(std::optional< std::string > v1_Name, std::optional< double > v2_DisplacementX, std::optional< double > v3_DisplacementY, std::optional< double > v4_DisplacementZ, std::optional< double > v5_RotationalDisplacementRX, std::optional< double > v6_RotationalDisplacementRY, std::optional< double > v7_RotationalDisplacementRZ, std::optional< double > v8_Distortion) : IfcStructuralLoadSingleDisplacement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_DisplacementX) {set_attribute_value(1, (*v2_DisplacementX)); } if (v3_DisplacementY) {set_attribute_value(2, (*v3_DisplacementY)); } if (v4_DisplacementZ) {set_attribute_value(3, (*v4_DisplacementZ)); } if (v5_RotationalDisplacementRX) {set_attribute_value(4, (*v5_RotationalDisplacementRX)); } if (v6_RotationalDisplacementRY) {set_attribute_value(5, (*v6_RotationalDisplacementRY)); } if (v7_RotationalDisplacementRZ) {set_attribute_value(6, (*v7_RotationalDisplacementRZ)); } if (v8_Distortion) {set_attribute_value(7, (*v8_Distortion)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadSingleForce
std::optional< double > Ifc2x3::IfcStructuralLoadSingleForce::ForceX() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcStructuralLoadSingleForce::setForceX(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleForce::ForceY() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcStructuralLoadSingleForce::setForceY(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleForce::ForceZ() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcStructuralLoadSingleForce::setForceZ(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleForce::MomentX() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcStructuralLoadSingleForce::setMomentX(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleForce::MomentY() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcStructuralLoadSingleForce::setMomentY(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcStructuralLoadSingleForce::MomentZ() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcStructuralLoadSingleForce::setMomentZ(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleForce::declaration() const { return *((IfcParse::entity*)IFC2X3_types[820]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleForce::Class() { return *((IfcParse::entity*)IFC2X3_types[820]); }
// Ifc2x3::IfcStructuralLoadSingleForce::IfcStructuralLoadSingleForce(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoadStatic(e) { }
// Ifc2x3::IfcStructuralLoadSingleForce::IfcStructuralLoadSingleForce(std::optional< std::string > v1_Name, std::optional< double > v2_ForceX, std::optional< double > v3_ForceY, std::optional< double > v4_ForceZ, std::optional< double > v5_MomentX, std::optional< double > v6_MomentY, std::optional< double > v7_MomentZ) : IfcStructuralLoadStatic(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_ForceX) {set_attribute_value(1, (*v2_ForceX)); } if (v3_ForceY) {set_attribute_value(2, (*v3_ForceY)); } if (v4_ForceZ) {set_attribute_value(3, (*v4_ForceZ)); } if (v5_MomentX) {set_attribute_value(4, (*v5_MomentX)); } if (v6_MomentY) {set_attribute_value(5, (*v6_MomentY)); } if (v7_MomentZ) {set_attribute_value(6, (*v7_MomentZ)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadSingleForceWarping
std::optional< double > Ifc2x3::IfcStructuralLoadSingleForceWarping::WarpingMoment() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcStructuralLoadSingleForceWarping::setWarpingMoment(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleForceWarping::declaration() const { return *((IfcParse::entity*)IFC2X3_types[821]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadSingleForceWarping::Class() { return *((IfcParse::entity*)IFC2X3_types[821]); }
// Ifc2x3::IfcStructuralLoadSingleForceWarping::IfcStructuralLoadSingleForceWarping(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoadSingleForce(e) { }
// Ifc2x3::IfcStructuralLoadSingleForceWarping::IfcStructuralLoadSingleForceWarping(std::optional< std::string > v1_Name, std::optional< double > v2_ForceX, std::optional< double > v3_ForceY, std::optional< double > v4_ForceZ, std::optional< double > v5_MomentX, std::optional< double > v6_MomentY, std::optional< double > v7_MomentZ, std::optional< double > v8_WarpingMoment) : IfcStructuralLoadSingleForce(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_ForceX) {set_attribute_value(1, (*v2_ForceX)); } if (v3_ForceY) {set_attribute_value(2, (*v3_ForceY)); } if (v4_ForceZ) {set_attribute_value(3, (*v4_ForceZ)); } if (v5_MomentX) {set_attribute_value(4, (*v5_MomentX)); } if (v6_MomentY) {set_attribute_value(5, (*v6_MomentY)); } if (v7_MomentZ) {set_attribute_value(6, (*v7_MomentZ)); } if (v8_WarpingMoment) {set_attribute_value(7, (*v8_WarpingMoment)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadStatic


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadStatic::declaration() const { return *((IfcParse::entity*)IFC2X3_types[822]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadStatic::Class() { return *((IfcParse::entity*)IFC2X3_types[822]); }
// Ifc2x3::IfcStructuralLoadStatic::IfcStructuralLoadStatic(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoad(e) { }
// Ifc2x3::IfcStructuralLoadStatic::IfcStructuralLoadStatic(std::optional< std::string > v1_Name) : IfcStructuralLoad(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }; populate_derived(); }

// Function implementations for IfcStructuralLoadTemperature
std::optional< double > Ifc2x3::IfcStructuralLoadTemperature::DeltaT_Constant() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcStructuralLoadTemperature::setDeltaT_Constant(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcStructuralLoadTemperature::DeltaT_Y() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcStructuralLoadTemperature::setDeltaT_Y(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcStructuralLoadTemperature::DeltaT_Z() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcStructuralLoadTemperature::setDeltaT_Z(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralLoadTemperature::declaration() const { return *((IfcParse::entity*)IFC2X3_types[823]); }
const IfcParse::entity& Ifc2x3::IfcStructuralLoadTemperature::Class() { return *((IfcParse::entity*)IFC2X3_types[823]); }
// Ifc2x3::IfcStructuralLoadTemperature::IfcStructuralLoadTemperature(const std::weak_ptr<InstanceData>& e) : IfcStructuralLoadStatic(e) { }
// Ifc2x3::IfcStructuralLoadTemperature::IfcStructuralLoadTemperature(std::optional< std::string > v1_Name, std::optional< double > v2_DeltaT_Constant, std::optional< double > v3_DeltaT_Y, std::optional< double > v4_DeltaT_Z) : IfcStructuralLoadStatic(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_DeltaT_Constant) {set_attribute_value(1, (*v2_DeltaT_Constant)); } if (v3_DeltaT_Y) {set_attribute_value(2, (*v3_DeltaT_Y)); } if (v4_DeltaT_Z) {set_attribute_value(3, (*v4_DeltaT_Z)); }; populate_derived(); }

// Function implementations for IfcStructuralMember

std::vector<::Ifc2x3::IfcRelConnectsStructuralElement> Ifc2x3::IfcStructuralMember::ReferencesElement() const { return cast_vector<IfcRelConnectsStructuralElement>(file()->getInverse(data()->id(), IFC2X3_types[694], 5)); }
std::vector<::Ifc2x3::IfcRelConnectsStructuralMember> Ifc2x3::IfcStructuralMember::ConnectedBy() const { return cast_vector<IfcRelConnectsStructuralMember>(file()->getInverse(data()->id(), IFC2X3_types[695], 4)); }

// const IfcParse::entity& Ifc2x3::IfcStructuralMember::declaration() const { return *((IfcParse::entity*)IFC2X3_types[824]); }
const IfcParse::entity& Ifc2x3::IfcStructuralMember::Class() { return *((IfcParse::entity*)IFC2X3_types[824]); }
// Ifc2x3::IfcStructuralMember::IfcStructuralMember(const std::weak_ptr<InstanceData>& e) : IfcStructuralItem(e) { }
// Ifc2x3::IfcStructuralMember::IfcStructuralMember(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation) : IfcStructuralItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }; populate_derived(); }

// Function implementations for IfcStructuralPlanarAction
::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value Ifc2x3::IfcStructuralPlanarAction::ProjectedOrTrue() const {  return ::Ifc2x3::IfcProjectedOrTrueLengthEnum::FromString(get_attribute_value(11)); }
void Ifc2x3::IfcStructuralPlanarAction::setProjectedOrTrue(const ::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value& v) { set_attribute_value(11, EnumerationReference(&::Ifc2x3::IfcProjectedOrTrueLengthEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(11); }


// const IfcParse::entity& Ifc2x3::IfcStructuralPlanarAction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[825]); }
const IfcParse::entity& Ifc2x3::IfcStructuralPlanarAction::Class() { return *((IfcParse::entity*)IFC2X3_types[825]); }
// Ifc2x3::IfcStructuralPlanarAction::IfcStructuralPlanarAction(const std::weak_ptr<InstanceData>& e) : IfcStructuralAction(e) { }
// Ifc2x3::IfcStructuralPlanarAction::IfcStructuralPlanarAction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal, bool v10_DestabilizingLoad, ::Ifc2x3::IfcStructuralReaction v11_CausedBy, ::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value v12_ProjectedOrTrue) : IfcStructuralAction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));set_attribute_value(9, (v10_DestabilizingLoad)); if (v11_CausedBy) {set_attribute_value(10, (*v11_CausedBy)); }set_attribute_value(11, (EnumerationReference(&::Ifc2x3::IfcProjectedOrTrueLengthEnum::Class(),(size_t)v12_ProjectedOrTrue)));; populate_derived(); }

// Function implementations for IfcStructuralPlanarActionVarying
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcStructuralPlanarActionVarying::VaryingAppliedLoadLocation() const {  return ((express::Base)(get_attribute_value(12))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcStructuralPlanarActionVarying::setVaryingAppliedLoadLocation(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
std::vector< ::Ifc2x3::IfcStructuralLoad > Ifc2x3::IfcStructuralPlanarActionVarying::SubsequentAppliedLoads() const {  std::vector<express::Base> es = get_attribute_value(13); return cast_vector<::Ifc2x3::IfcStructuralLoad>(es); }
void Ifc2x3::IfcStructuralPlanarActionVarying::setSubsequentAppliedLoads(const std::vector< ::Ifc2x3::IfcStructuralLoad >& v) { set_attribute_value(13, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(13); }


// const IfcParse::entity& Ifc2x3::IfcStructuralPlanarActionVarying::declaration() const { return *((IfcParse::entity*)IFC2X3_types[826]); }
const IfcParse::entity& Ifc2x3::IfcStructuralPlanarActionVarying::Class() { return *((IfcParse::entity*)IFC2X3_types[826]); }
// Ifc2x3::IfcStructuralPlanarActionVarying::IfcStructuralPlanarActionVarying(const std::weak_ptr<InstanceData>& e) : IfcStructuralPlanarAction(e) { }
// Ifc2x3::IfcStructuralPlanarActionVarying::IfcStructuralPlanarActionVarying(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal, bool v10_DestabilizingLoad, ::Ifc2x3::IfcStructuralReaction v11_CausedBy, ::Ifc2x3::IfcProjectedOrTrueLengthEnum::Value v12_ProjectedOrTrue, ::Ifc2x3::IfcShapeAspect v13_VaryingAppliedLoadLocation, std::vector< ::Ifc2x3::IfcStructuralLoad > v14_SubsequentAppliedLoads) : IfcStructuralPlanarAction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(14))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));set_attribute_value(9, (v10_DestabilizingLoad)); if (v11_CausedBy) {set_attribute_value(10, (*v11_CausedBy)); }set_attribute_value(11, (EnumerationReference(&::Ifc2x3::IfcProjectedOrTrueLengthEnum::Class(),(size_t)v12_ProjectedOrTrue)));set_attribute_value(12, (v13_VaryingAppliedLoadLocation));set_attribute_value(13, (v14_SubsequentAppliedLoads)->generalize());; populate_derived(); }

// Function implementations for IfcStructuralPointAction


// const IfcParse::entity& Ifc2x3::IfcStructuralPointAction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[827]); }
const IfcParse::entity& Ifc2x3::IfcStructuralPointAction::Class() { return *((IfcParse::entity*)IFC2X3_types[827]); }
// Ifc2x3::IfcStructuralPointAction::IfcStructuralPointAction(const std::weak_ptr<InstanceData>& e) : IfcStructuralAction(e) { }
// Ifc2x3::IfcStructuralPointAction::IfcStructuralPointAction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal, bool v10_DestabilizingLoad, ::Ifc2x3::IfcStructuralReaction v11_CausedBy) : IfcStructuralAction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));set_attribute_value(9, (v10_DestabilizingLoad)); if (v11_CausedBy) {set_attribute_value(10, (*v11_CausedBy)); }; populate_derived(); }

// Function implementations for IfcStructuralPointConnection


// const IfcParse::entity& Ifc2x3::IfcStructuralPointConnection::declaration() const { return *((IfcParse::entity*)IFC2X3_types[828]); }
const IfcParse::entity& Ifc2x3::IfcStructuralPointConnection::Class() { return *((IfcParse::entity*)IFC2X3_types[828]); }
// Ifc2x3::IfcStructuralPointConnection::IfcStructuralPointConnection(const std::weak_ptr<InstanceData>& e) : IfcStructuralConnection(e) { }
// Ifc2x3::IfcStructuralPointConnection::IfcStructuralPointConnection(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcBoundaryCondition v8_AppliedCondition) : IfcStructuralConnection(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_AppliedCondition) {set_attribute_value(7, (*v8_AppliedCondition)); }; populate_derived(); }

// Function implementations for IfcStructuralPointReaction


// const IfcParse::entity& Ifc2x3::IfcStructuralPointReaction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[829]); }
const IfcParse::entity& Ifc2x3::IfcStructuralPointReaction::Class() { return *((IfcParse::entity*)IFC2X3_types[829]); }
// Ifc2x3::IfcStructuralPointReaction::IfcStructuralPointReaction(const std::weak_ptr<InstanceData>& e) : IfcStructuralReaction(e) { }
// Ifc2x3::IfcStructuralPointReaction::IfcStructuralPointReaction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal) : IfcStructuralReaction(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));; populate_derived(); }

// Function implementations for IfcStructuralProfileProperties
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::TorsionalConstantX() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setTorsionalConstantX(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::MomentOfInertiaYZ() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setMomentOfInertiaYZ(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::MomentOfInertiaY() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setMomentOfInertiaY(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::MomentOfInertiaZ() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setMomentOfInertiaZ(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::WarpingConstant() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setWarpingConstant(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::ShearCentreZ() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setShearCentreZ(const std::optional< double >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::ShearCentreY() const { if(get_attribute_value(13).isNull()) { return std::nullopt; } double v = get_attribute_value(13); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setShearCentreY(const std::optional< double >& v) { if (v) {set_attribute_value(13, *v);} else {unset_attribute_value(13);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::ShearDeformationAreaZ() const { if(get_attribute_value(14).isNull()) { return std::nullopt; } double v = get_attribute_value(14); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setShearDeformationAreaZ(const std::optional< double >& v) { if (v) {set_attribute_value(14, *v);} else {unset_attribute_value(14);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::ShearDeformationAreaY() const { if(get_attribute_value(15).isNull()) { return std::nullopt; } double v = get_attribute_value(15); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setShearDeformationAreaY(const std::optional< double >& v) { if (v) {set_attribute_value(15, *v);} else {unset_attribute_value(15);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::MaximumSectionModulusY() const { if(get_attribute_value(16).isNull()) { return std::nullopt; } double v = get_attribute_value(16); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setMaximumSectionModulusY(const std::optional< double >& v) { if (v) {set_attribute_value(16, *v);} else {unset_attribute_value(16);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::MinimumSectionModulusY() const { if(get_attribute_value(17).isNull()) { return std::nullopt; } double v = get_attribute_value(17); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setMinimumSectionModulusY(const std::optional< double >& v) { if (v) {set_attribute_value(17, *v);} else {unset_attribute_value(17);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::MaximumSectionModulusZ() const { if(get_attribute_value(18).isNull()) { return std::nullopt; } double v = get_attribute_value(18); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setMaximumSectionModulusZ(const std::optional< double >& v) { if (v) {set_attribute_value(18, *v);} else {unset_attribute_value(18);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::MinimumSectionModulusZ() const { if(get_attribute_value(19).isNull()) { return std::nullopt; } double v = get_attribute_value(19); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setMinimumSectionModulusZ(const std::optional< double >& v) { if (v) {set_attribute_value(19, *v);} else {unset_attribute_value(19);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::TorsionalSectionModulus() const { if(get_attribute_value(20).isNull()) { return std::nullopt; } double v = get_attribute_value(20); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setTorsionalSectionModulus(const std::optional< double >& v) { if (v) {set_attribute_value(20, *v);} else {unset_attribute_value(20);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::CentreOfGravityInX() const { if(get_attribute_value(21).isNull()) { return std::nullopt; } double v = get_attribute_value(21); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setCentreOfGravityInX(const std::optional< double >& v) { if (v) {set_attribute_value(21, *v);} else {unset_attribute_value(21);} }
std::optional< double > Ifc2x3::IfcStructuralProfileProperties::CentreOfGravityInY() const { if(get_attribute_value(22).isNull()) { return std::nullopt; } double v = get_attribute_value(22); return v; }
void Ifc2x3::IfcStructuralProfileProperties::setCentreOfGravityInY(const std::optional< double >& v) { if (v) {set_attribute_value(22, *v);} else {unset_attribute_value(22);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralProfileProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[830]); }
const IfcParse::entity& Ifc2x3::IfcStructuralProfileProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[830]); }
// Ifc2x3::IfcStructuralProfileProperties::IfcStructuralProfileProperties(const std::weak_ptr<InstanceData>& e) : IfcGeneralProfileProperties(e) { }
// Ifc2x3::IfcStructuralProfileProperties::IfcStructuralProfileProperties(std::optional< std::string > v1_ProfileName, ::Ifc2x3::IfcProfileDef v2_ProfileDefinition, std::optional< double > v3_PhysicalWeight, std::optional< double > v4_Perimeter, std::optional< double > v5_MinimumPlateThickness, std::optional< double > v6_MaximumPlateThickness, std::optional< double > v7_CrossSectionArea, std::optional< double > v8_TorsionalConstantX, std::optional< double > v9_MomentOfInertiaYZ, std::optional< double > v10_MomentOfInertiaY, std::optional< double > v11_MomentOfInertiaZ, std::optional< double > v12_WarpingConstant, std::optional< double > v13_ShearCentreZ, std::optional< double > v14_ShearCentreY, std::optional< double > v15_ShearDeformationAreaZ, std::optional< double > v16_ShearDeformationAreaY, std::optional< double > v17_MaximumSectionModulusY, std::optional< double > v18_MinimumSectionModulusY, std::optional< double > v19_MaximumSectionModulusZ, std::optional< double > v20_MinimumSectionModulusZ, std::optional< double > v21_TorsionalSectionModulus, std::optional< double > v22_CentreOfGravityInX, std::optional< double > v23_CentreOfGravityInY) : IfcGeneralProfileProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(23))) {  if (v1_ProfileName) {set_attribute_value(0, (*v1_ProfileName)); } if (v2_ProfileDefinition) {set_attribute_value(1, (*v2_ProfileDefinition)); } if (v3_PhysicalWeight) {set_attribute_value(2, (*v3_PhysicalWeight)); } if (v4_Perimeter) {set_attribute_value(3, (*v4_Perimeter)); } if (v5_MinimumPlateThickness) {set_attribute_value(4, (*v5_MinimumPlateThickness)); } if (v6_MaximumPlateThickness) {set_attribute_value(5, (*v6_MaximumPlateThickness)); } if (v7_CrossSectionArea) {set_attribute_value(6, (*v7_CrossSectionArea)); } if (v8_TorsionalConstantX) {set_attribute_value(7, (*v8_TorsionalConstantX)); } if (v9_MomentOfInertiaYZ) {set_attribute_value(8, (*v9_MomentOfInertiaYZ)); } if (v10_MomentOfInertiaY) {set_attribute_value(9, (*v10_MomentOfInertiaY)); } if (v11_MomentOfInertiaZ) {set_attribute_value(10, (*v11_MomentOfInertiaZ)); } if (v12_WarpingConstant) {set_attribute_value(11, (*v12_WarpingConstant)); } if (v13_ShearCentreZ) {set_attribute_value(12, (*v13_ShearCentreZ)); } if (v14_ShearCentreY) {set_attribute_value(13, (*v14_ShearCentreY)); } if (v15_ShearDeformationAreaZ) {set_attribute_value(14, (*v15_ShearDeformationAreaZ)); } if (v16_ShearDeformationAreaY) {set_attribute_value(15, (*v16_ShearDeformationAreaY)); } if (v17_MaximumSectionModulusY) {set_attribute_value(16, (*v17_MaximumSectionModulusY)); } if (v18_MinimumSectionModulusY) {set_attribute_value(17, (*v18_MinimumSectionModulusY)); } if (v19_MaximumSectionModulusZ) {set_attribute_value(18, (*v19_MaximumSectionModulusZ)); } if (v20_MinimumSectionModulusZ) {set_attribute_value(19, (*v20_MinimumSectionModulusZ)); } if (v21_TorsionalSectionModulus) {set_attribute_value(20, (*v21_TorsionalSectionModulus)); } if (v22_CentreOfGravityInX) {set_attribute_value(21, (*v22_CentreOfGravityInX)); } if (v23_CentreOfGravityInY) {set_attribute_value(22, (*v23_CentreOfGravityInY)); }; populate_derived(); }

// Function implementations for IfcStructuralReaction

std::vector<::Ifc2x3::IfcStructuralAction> Ifc2x3::IfcStructuralReaction::Causes() const { return cast_vector<IfcStructuralAction>(file()->getInverse(data()->id(), IFC2X3_types[801], 10)); }

// const IfcParse::entity& Ifc2x3::IfcStructuralReaction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[831]); }
const IfcParse::entity& Ifc2x3::IfcStructuralReaction::Class() { return *((IfcParse::entity*)IFC2X3_types[831]); }
// Ifc2x3::IfcStructuralReaction::IfcStructuralReaction(const std::weak_ptr<InstanceData>& e) : IfcStructuralActivity(e) { }
// Ifc2x3::IfcStructuralReaction::IfcStructuralReaction(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralLoad v8_AppliedLoad, ::Ifc2x3::IfcGlobalOrLocalEnum::Value v9_GlobalOrLocal) : IfcStructuralActivity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (v8_AppliedLoad));set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcGlobalOrLocalEnum::Class(),(size_t)v9_GlobalOrLocal)));; populate_derived(); }

// Function implementations for IfcStructuralResultGroup
::Ifc2x3::IfcAnalysisTheoryTypeEnum::Value Ifc2x3::IfcStructuralResultGroup::TheoryType() const {  return ::Ifc2x3::IfcAnalysisTheoryTypeEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcStructuralResultGroup::setTheoryType(const ::Ifc2x3::IfcAnalysisTheoryTypeEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcAnalysisTheoryTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcStructuralLoadGroup Ifc2x3::IfcStructuralResultGroup::ResultForLoadGroup() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcStructuralLoadGroup{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcStructuralLoadGroup>(); }
void Ifc2x3::IfcStructuralResultGroup::setResultForLoadGroup(const ::Ifc2x3::IfcStructuralLoadGroup& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
bool Ifc2x3::IfcStructuralResultGroup::IsLinear() const {  bool v = get_attribute_value(7); return v; }
void Ifc2x3::IfcStructuralResultGroup::setIsLinear(const bool& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }

std::vector<::Ifc2x3::IfcStructuralAnalysisModel> Ifc2x3::IfcStructuralResultGroup::ResultGroupFor() const { return cast_vector<IfcStructuralAnalysisModel>(file()->getInverse(data()->id(), IFC2X3_types[804], 8)); }

// const IfcParse::entity& Ifc2x3::IfcStructuralResultGroup::declaration() const { return *((IfcParse::entity*)IFC2X3_types[832]); }
const IfcParse::entity& Ifc2x3::IfcStructuralResultGroup::Class() { return *((IfcParse::entity*)IFC2X3_types[832]); }
// Ifc2x3::IfcStructuralResultGroup::IfcStructuralResultGroup(const std::weak_ptr<InstanceData>& e) : IfcGroup(e) { }
// Ifc2x3::IfcStructuralResultGroup::IfcStructuralResultGroup(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcAnalysisTheoryTypeEnum::Value v6_TheoryType, ::Ifc2x3::IfcStructuralLoadGroup v7_ResultForLoadGroup, bool v8_IsLinear) : IfcGroup(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcAnalysisTheoryTypeEnum::Class(),(size_t)v6_TheoryType))); if (v7_ResultForLoadGroup) {set_attribute_value(6, (*v7_ResultForLoadGroup)); }set_attribute_value(7, (v8_IsLinear));; populate_derived(); }

// Function implementations for IfcStructuralSteelProfileProperties
std::optional< double > Ifc2x3::IfcStructuralSteelProfileProperties::ShearAreaZ() const { if(get_attribute_value(23).isNull()) { return std::nullopt; } double v = get_attribute_value(23); return v; }
void Ifc2x3::IfcStructuralSteelProfileProperties::setShearAreaZ(const std::optional< double >& v) { if (v) {set_attribute_value(23, *v);} else {unset_attribute_value(23);} }
std::optional< double > Ifc2x3::IfcStructuralSteelProfileProperties::ShearAreaY() const { if(get_attribute_value(24).isNull()) { return std::nullopt; } double v = get_attribute_value(24); return v; }
void Ifc2x3::IfcStructuralSteelProfileProperties::setShearAreaY(const std::optional< double >& v) { if (v) {set_attribute_value(24, *v);} else {unset_attribute_value(24);} }
std::optional< double > Ifc2x3::IfcStructuralSteelProfileProperties::PlasticShapeFactorY() const { if(get_attribute_value(25).isNull()) { return std::nullopt; } double v = get_attribute_value(25); return v; }
void Ifc2x3::IfcStructuralSteelProfileProperties::setPlasticShapeFactorY(const std::optional< double >& v) { if (v) {set_attribute_value(25, *v);} else {unset_attribute_value(25);} }
std::optional< double > Ifc2x3::IfcStructuralSteelProfileProperties::PlasticShapeFactorZ() const { if(get_attribute_value(26).isNull()) { return std::nullopt; } double v = get_attribute_value(26); return v; }
void Ifc2x3::IfcStructuralSteelProfileProperties::setPlasticShapeFactorZ(const std::optional< double >& v) { if (v) {set_attribute_value(26, *v);} else {unset_attribute_value(26);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralSteelProfileProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[833]); }
const IfcParse::entity& Ifc2x3::IfcStructuralSteelProfileProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[833]); }
// Ifc2x3::IfcStructuralSteelProfileProperties::IfcStructuralSteelProfileProperties(const std::weak_ptr<InstanceData>& e) : IfcStructuralProfileProperties(e) { }
// Ifc2x3::IfcStructuralSteelProfileProperties::IfcStructuralSteelProfileProperties(std::optional< std::string > v1_ProfileName, ::Ifc2x3::IfcProfileDef v2_ProfileDefinition, std::optional< double > v3_PhysicalWeight, std::optional< double > v4_Perimeter, std::optional< double > v5_MinimumPlateThickness, std::optional< double > v6_MaximumPlateThickness, std::optional< double > v7_CrossSectionArea, std::optional< double > v8_TorsionalConstantX, std::optional< double > v9_MomentOfInertiaYZ, std::optional< double > v10_MomentOfInertiaY, std::optional< double > v11_MomentOfInertiaZ, std::optional< double > v12_WarpingConstant, std::optional< double > v13_ShearCentreZ, std::optional< double > v14_ShearCentreY, std::optional< double > v15_ShearDeformationAreaZ, std::optional< double > v16_ShearDeformationAreaY, std::optional< double > v17_MaximumSectionModulusY, std::optional< double > v18_MinimumSectionModulusY, std::optional< double > v19_MaximumSectionModulusZ, std::optional< double > v20_MinimumSectionModulusZ, std::optional< double > v21_TorsionalSectionModulus, std::optional< double > v22_CentreOfGravityInX, std::optional< double > v23_CentreOfGravityInY, std::optional< double > v24_ShearAreaZ, std::optional< double > v25_ShearAreaY, std::optional< double > v26_PlasticShapeFactorY, std::optional< double > v27_PlasticShapeFactorZ) : IfcStructuralProfileProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(27))) {  if (v1_ProfileName) {set_attribute_value(0, (*v1_ProfileName)); } if (v2_ProfileDefinition) {set_attribute_value(1, (*v2_ProfileDefinition)); } if (v3_PhysicalWeight) {set_attribute_value(2, (*v3_PhysicalWeight)); } if (v4_Perimeter) {set_attribute_value(3, (*v4_Perimeter)); } if (v5_MinimumPlateThickness) {set_attribute_value(4, (*v5_MinimumPlateThickness)); } if (v6_MaximumPlateThickness) {set_attribute_value(5, (*v6_MaximumPlateThickness)); } if (v7_CrossSectionArea) {set_attribute_value(6, (*v7_CrossSectionArea)); } if (v8_TorsionalConstantX) {set_attribute_value(7, (*v8_TorsionalConstantX)); } if (v9_MomentOfInertiaYZ) {set_attribute_value(8, (*v9_MomentOfInertiaYZ)); } if (v10_MomentOfInertiaY) {set_attribute_value(9, (*v10_MomentOfInertiaY)); } if (v11_MomentOfInertiaZ) {set_attribute_value(10, (*v11_MomentOfInertiaZ)); } if (v12_WarpingConstant) {set_attribute_value(11, (*v12_WarpingConstant)); } if (v13_ShearCentreZ) {set_attribute_value(12, (*v13_ShearCentreZ)); } if (v14_ShearCentreY) {set_attribute_value(13, (*v14_ShearCentreY)); } if (v15_ShearDeformationAreaZ) {set_attribute_value(14, (*v15_ShearDeformationAreaZ)); } if (v16_ShearDeformationAreaY) {set_attribute_value(15, (*v16_ShearDeformationAreaY)); } if (v17_MaximumSectionModulusY) {set_attribute_value(16, (*v17_MaximumSectionModulusY)); } if (v18_MinimumSectionModulusY) {set_attribute_value(17, (*v18_MinimumSectionModulusY)); } if (v19_MaximumSectionModulusZ) {set_attribute_value(18, (*v19_MaximumSectionModulusZ)); } if (v20_MinimumSectionModulusZ) {set_attribute_value(19, (*v20_MinimumSectionModulusZ)); } if (v21_TorsionalSectionModulus) {set_attribute_value(20, (*v21_TorsionalSectionModulus)); } if (v22_CentreOfGravityInX) {set_attribute_value(21, (*v22_CentreOfGravityInX)); } if (v23_CentreOfGravityInY) {set_attribute_value(22, (*v23_CentreOfGravityInY)); } if (v24_ShearAreaZ) {set_attribute_value(23, (*v24_ShearAreaZ)); } if (v25_ShearAreaY) {set_attribute_value(24, (*v25_ShearAreaY)); } if (v26_PlasticShapeFactorY) {set_attribute_value(25, (*v26_PlasticShapeFactorY)); } if (v27_PlasticShapeFactorZ) {set_attribute_value(26, (*v27_PlasticShapeFactorZ)); }; populate_derived(); }

// Function implementations for IfcStructuralSurfaceConnection


// const IfcParse::entity& Ifc2x3::IfcStructuralSurfaceConnection::declaration() const { return *((IfcParse::entity*)IFC2X3_types[834]); }
const IfcParse::entity& Ifc2x3::IfcStructuralSurfaceConnection::Class() { return *((IfcParse::entity*)IFC2X3_types[834]); }
// Ifc2x3::IfcStructuralSurfaceConnection::IfcStructuralSurfaceConnection(const std::weak_ptr<InstanceData>& e) : IfcStructuralConnection(e) { }
// Ifc2x3::IfcStructuralSurfaceConnection::IfcStructuralSurfaceConnection(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcBoundaryCondition v8_AppliedCondition) : IfcStructuralConnection(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_AppliedCondition) {set_attribute_value(7, (*v8_AppliedCondition)); }; populate_derived(); }

// Function implementations for IfcStructuralSurfaceMember
::Ifc2x3::IfcStructuralSurfaceTypeEnum::Value Ifc2x3::IfcStructuralSurfaceMember::PredefinedType() const {  return ::Ifc2x3::IfcStructuralSurfaceTypeEnum::FromString(get_attribute_value(7)); }
void Ifc2x3::IfcStructuralSurfaceMember::setPredefinedType(const ::Ifc2x3::IfcStructuralSurfaceTypeEnum::Value& v) { set_attribute_value(7, EnumerationReference(&::Ifc2x3::IfcStructuralSurfaceTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(7); }
std::optional< double > Ifc2x3::IfcStructuralSurfaceMember::Thickness() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcStructuralSurfaceMember::setThickness(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcStructuralSurfaceMember::declaration() const { return *((IfcParse::entity*)IFC2X3_types[835]); }
const IfcParse::entity& Ifc2x3::IfcStructuralSurfaceMember::Class() { return *((IfcParse::entity*)IFC2X3_types[835]); }
// Ifc2x3::IfcStructuralSurfaceMember::IfcStructuralSurfaceMember(const std::weak_ptr<InstanceData>& e) : IfcStructuralMember(e) { }
// Ifc2x3::IfcStructuralSurfaceMember::IfcStructuralSurfaceMember(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralSurfaceTypeEnum::Value v8_PredefinedType, std::optional< double > v9_Thickness) : IfcStructuralMember(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcStructuralSurfaceTypeEnum::Class(),(size_t)v8_PredefinedType))); if (v9_Thickness) {set_attribute_value(8, (*v9_Thickness)); }; populate_derived(); }

// Function implementations for IfcStructuralSurfaceMemberVarying
std::vector< double > /*[2:?]*/ Ifc2x3::IfcStructuralSurfaceMemberVarying::SubsequentThickness() const {  std::vector< double > /*[2:?]*/ v = get_attribute_value(9); return v; }
void Ifc2x3::IfcStructuralSurfaceMemberVarying::setSubsequentThickness(const std::vector< double > /*[2:?]*/& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcStructuralSurfaceMemberVarying::VaryingThicknessLocation() const {  return ((express::Base)(get_attribute_value(10))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcStructuralSurfaceMemberVarying::setVaryingThicknessLocation(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }


// const IfcParse::entity& Ifc2x3::IfcStructuralSurfaceMemberVarying::declaration() const { return *((IfcParse::entity*)IFC2X3_types[836]); }
const IfcParse::entity& Ifc2x3::IfcStructuralSurfaceMemberVarying::Class() { return *((IfcParse::entity*)IFC2X3_types[836]); }
// Ifc2x3::IfcStructuralSurfaceMemberVarying::IfcStructuralSurfaceMemberVarying(const std::weak_ptr<InstanceData>& e) : IfcStructuralSurfaceMember(e) { }
// Ifc2x3::IfcStructuralSurfaceMemberVarying::IfcStructuralSurfaceMemberVarying(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, ::Ifc2x3::IfcStructuralSurfaceTypeEnum::Value v8_PredefinedType, std::optional< double > v9_Thickness, std::vector< double > /*[2:?]*/ v10_SubsequentThickness, ::Ifc2x3::IfcShapeAspect v11_VaryingThicknessLocation) : IfcStructuralSurfaceMember(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); }set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcStructuralSurfaceTypeEnum::Class(),(size_t)v8_PredefinedType))); if (v9_Thickness) {set_attribute_value(8, (*v9_Thickness)); }set_attribute_value(9, (v10_SubsequentThickness));set_attribute_value(10, (v11_VaryingThicknessLocation));; populate_derived(); }

// Function implementations for IfcStructuredDimensionCallout


// const IfcParse::entity& Ifc2x3::IfcStructuredDimensionCallout::declaration() const { return *((IfcParse::entity*)IFC2X3_types[838]); }
const IfcParse::entity& Ifc2x3::IfcStructuredDimensionCallout::Class() { return *((IfcParse::entity*)IFC2X3_types[838]); }
// Ifc2x3::IfcStructuredDimensionCallout::IfcStructuredDimensionCallout(const std::weak_ptr<InstanceData>& e) : IfcDraughtingCallout(e) { }
// Ifc2x3::IfcStructuredDimensionCallout::IfcStructuredDimensionCallout(std::vector< ::Ifc2x3::IfcDraughtingCalloutElement > v1_Contents) : IfcDraughtingCallout(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Contents)->generalize());; populate_derived(); }

// Function implementations for IfcStyleModel


// const IfcParse::entity& Ifc2x3::IfcStyleModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[841]); }
const IfcParse::entity& Ifc2x3::IfcStyleModel::Class() { return *((IfcParse::entity*)IFC2X3_types[841]); }
// Ifc2x3::IfcStyleModel::IfcStyleModel(const std::weak_ptr<InstanceData>& e) : IfcRepresentation(e) { }
// Ifc2x3::IfcStyleModel::IfcStyleModel(::Ifc2x3::IfcRepresentationContext v1_ContextOfItems, std::optional< std::string > v2_RepresentationIdentifier, std::optional< std::string > v3_RepresentationType, std::vector< ::Ifc2x3::IfcRepresentationItem > v4_Items) : IfcRepresentation(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ContextOfItems)); if (v2_RepresentationIdentifier) {set_attribute_value(1, (*v2_RepresentationIdentifier)); } if (v3_RepresentationType) {set_attribute_value(2, (*v3_RepresentationType)); }set_attribute_value(3, (v4_Items)->generalize());; populate_derived(); }

// Function implementations for IfcStyledItem
::Ifc2x3::IfcRepresentationItem Ifc2x3::IfcStyledItem::Item() const { if(get_attribute_value(0).isNull()) { return ::Ifc2x3::IfcRepresentationItem{}; } return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcRepresentationItem>(); }
void Ifc2x3::IfcStyledItem::setItem(const ::Ifc2x3::IfcRepresentationItem& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > Ifc2x3::IfcStyledItem::Styles() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcPresentationStyleAssignment>(es); }
void Ifc2x3::IfcStyledItem::setStyles(const std::vector< ::Ifc2x3::IfcPresentationStyleAssignment >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
std::optional< std::string > Ifc2x3::IfcStyledItem::Name() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcStyledItem::setName(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }


// const IfcParse::entity& Ifc2x3::IfcStyledItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[839]); }
const IfcParse::entity& Ifc2x3::IfcStyledItem::Class() { return *((IfcParse::entity*)IFC2X3_types[839]); }
// Ifc2x3::IfcStyledItem::IfcStyledItem(const std::weak_ptr<InstanceData>& e) : IfcRepresentationItem(e) { }
// Ifc2x3::IfcStyledItem::IfcStyledItem(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name) : IfcRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }; populate_derived(); }

// Function implementations for IfcStyledRepresentation


// const IfcParse::entity& Ifc2x3::IfcStyledRepresentation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[840]); }
const IfcParse::entity& Ifc2x3::IfcStyledRepresentation::Class() { return *((IfcParse::entity*)IFC2X3_types[840]); }
// Ifc2x3::IfcStyledRepresentation::IfcStyledRepresentation(const std::weak_ptr<InstanceData>& e) : IfcStyleModel(e) { }
// Ifc2x3::IfcStyledRepresentation::IfcStyledRepresentation(::Ifc2x3::IfcRepresentationContext v1_ContextOfItems, std::optional< std::string > v2_RepresentationIdentifier, std::optional< std::string > v3_RepresentationType, std::vector< ::Ifc2x3::IfcRepresentationItem > v4_Items) : IfcStyleModel(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ContextOfItems)); if (v2_RepresentationIdentifier) {set_attribute_value(1, (*v2_RepresentationIdentifier)); } if (v3_RepresentationType) {set_attribute_value(2, (*v3_RepresentationType)); }set_attribute_value(3, (v4_Items)->generalize());; populate_derived(); }

// Function implementations for IfcSubContractResource
::Ifc2x3::IfcActorSelect Ifc2x3::IfcSubContractResource::SubContractor() const { if(get_attribute_value(9).isNull()) { return ::Ifc2x3::IfcActorSelect{}; } return ((express::Base)(get_attribute_value(9))).as<::Ifc2x3::IfcActorSelect>(); }
void Ifc2x3::IfcSubContractResource::setSubContractor(const ::Ifc2x3::IfcActorSelect& v) { set_attribute_value(9, v);if constexpr (false)unset_attribute_value(9); }
std::optional< std::string > Ifc2x3::IfcSubContractResource::JobDescription() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } std::string v = get_attribute_value(10); return v; }
void Ifc2x3::IfcSubContractResource::setJobDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }


// const IfcParse::entity& Ifc2x3::IfcSubContractResource::declaration() const { return *((IfcParse::entity*)IFC2X3_types[842]); }
const IfcParse::entity& Ifc2x3::IfcSubContractResource::Class() { return *((IfcParse::entity*)IFC2X3_types[842]); }
// Ifc2x3::IfcSubContractResource::IfcSubContractResource(const std::weak_ptr<InstanceData>& e) : IfcConstructionResource(e) { }
// Ifc2x3::IfcSubContractResource::IfcSubContractResource(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::string > v6_ResourceIdentifier, std::optional< std::string > v7_ResourceGroup, std::optional< ::Ifc2x3::IfcResourceConsumptionEnum::Value > v8_ResourceConsumption, ::Ifc2x3::IfcMeasureWithUnit v9_BaseQuantity, ::Ifc2x3::IfcActorSelect v10_SubContractor, std::optional< std::string > v11_JobDescription) : IfcConstructionResource(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ResourceIdentifier) {set_attribute_value(5, (*v6_ResourceIdentifier)); } if (v7_ResourceGroup) {set_attribute_value(6, (*v7_ResourceGroup)); } if (v8_ResourceConsumption) {set_attribute_value(7, (EnumerationReference(&::Ifc2x3::IfcResourceConsumptionEnum::Class(),(size_t)*v8_ResourceConsumption))); } if (v9_BaseQuantity) {set_attribute_value(8, (*v9_BaseQuantity)); } if (v10_SubContractor) {set_attribute_value(9, (*v10_SubContractor)); } if (v11_JobDescription) {set_attribute_value(10, (*v11_JobDescription)); }; populate_derived(); }

// Function implementations for IfcSubedge
::Ifc2x3::IfcEdge Ifc2x3::IfcSubedge::ParentEdge() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcEdge>(); }
void Ifc2x3::IfcSubedge::setParentEdge(const ::Ifc2x3::IfcEdge& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcSubedge::declaration() const { return *((IfcParse::entity*)IFC2X3_types[843]); }
const IfcParse::entity& Ifc2x3::IfcSubedge::Class() { return *((IfcParse::entity*)IFC2X3_types[843]); }
// Ifc2x3::IfcSubedge::IfcSubedge(const std::weak_ptr<InstanceData>& e) : IfcEdge(e) { }
// Ifc2x3::IfcSubedge::IfcSubedge(::Ifc2x3::IfcVertex v1_EdgeStart, ::Ifc2x3::IfcVertex v2_EdgeEnd, ::Ifc2x3::IfcEdge v3_ParentEdge) : IfcEdge(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_EdgeStart));set_attribute_value(1, (v2_EdgeEnd));set_attribute_value(2, (v3_ParentEdge));; populate_derived(); }

// Function implementations for IfcSurface


// const IfcParse::entity& Ifc2x3::IfcSurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[844]); }
const IfcParse::entity& Ifc2x3::IfcSurface::Class() { return *((IfcParse::entity*)IFC2X3_types[844]); }
// Ifc2x3::IfcSurface::IfcSurface(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcSurface::IfcSurface() : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcSurfaceCurveSweptAreaSolid
::Ifc2x3::IfcCurve Ifc2x3::IfcSurfaceCurveSweptAreaSolid::Directrix() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcSurfaceCurveSweptAreaSolid::setDirectrix(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcSurfaceCurveSweptAreaSolid::StartParam() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcSurfaceCurveSweptAreaSolid::setStartParam(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcSurfaceCurveSweptAreaSolid::EndParam() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcSurfaceCurveSweptAreaSolid::setEndParam(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcSurface Ifc2x3::IfcSurfaceCurveSweptAreaSolid::ReferenceSurface() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcSurface>(); }
void Ifc2x3::IfcSurfaceCurveSweptAreaSolid::setReferenceSurface(const ::Ifc2x3::IfcSurface& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceCurveSweptAreaSolid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[845]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceCurveSweptAreaSolid::Class() { return *((IfcParse::entity*)IFC2X3_types[845]); }
// Ifc2x3::IfcSurfaceCurveSweptAreaSolid::IfcSurfaceCurveSweptAreaSolid(const std::weak_ptr<InstanceData>& e) : IfcSweptAreaSolid(e) { }
// Ifc2x3::IfcSurfaceCurveSweptAreaSolid::IfcSurfaceCurveSweptAreaSolid(::Ifc2x3::IfcProfileDef v1_SweptArea, ::Ifc2x3::IfcAxis2Placement3D v2_Position, ::Ifc2x3::IfcCurve v3_Directrix, double v4_StartParam, double v5_EndParam, ::Ifc2x3::IfcSurface v6_ReferenceSurface) : IfcSweptAreaSolid(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_SweptArea));set_attribute_value(1, (v2_Position));set_attribute_value(2, (v3_Directrix));set_attribute_value(3, (v4_StartParam));set_attribute_value(4, (v5_EndParam));set_attribute_value(5, (v6_ReferenceSurface));; populate_derived(); }

// Function implementations for IfcSurfaceOfLinearExtrusion
::Ifc2x3::IfcDirection Ifc2x3::IfcSurfaceOfLinearExtrusion::ExtrudedDirection() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcSurfaceOfLinearExtrusion::setExtrudedDirection(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
double Ifc2x3::IfcSurfaceOfLinearExtrusion::Depth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcSurfaceOfLinearExtrusion::setDepth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceOfLinearExtrusion::declaration() const { return *((IfcParse::entity*)IFC2X3_types[846]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceOfLinearExtrusion::Class() { return *((IfcParse::entity*)IFC2X3_types[846]); }
// Ifc2x3::IfcSurfaceOfLinearExtrusion::IfcSurfaceOfLinearExtrusion(const std::weak_ptr<InstanceData>& e) : IfcSweptSurface(e) { }
// Ifc2x3::IfcSurfaceOfLinearExtrusion::IfcSurfaceOfLinearExtrusion(::Ifc2x3::IfcProfileDef v1_SweptCurve, ::Ifc2x3::IfcAxis2Placement3D v2_Position, ::Ifc2x3::IfcDirection v3_ExtrudedDirection, double v4_Depth) : IfcSweptSurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_SweptCurve));set_attribute_value(1, (v2_Position));set_attribute_value(2, (v3_ExtrudedDirection));set_attribute_value(3, (v4_Depth));; populate_derived(); }

// Function implementations for IfcSurfaceOfRevolution
::Ifc2x3::IfcAxis1Placement Ifc2x3::IfcSurfaceOfRevolution::AxisPosition() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcAxis1Placement>(); }
void Ifc2x3::IfcSurfaceOfRevolution::setAxisPosition(const ::Ifc2x3::IfcAxis1Placement& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceOfRevolution::declaration() const { return *((IfcParse::entity*)IFC2X3_types[847]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceOfRevolution::Class() { return *((IfcParse::entity*)IFC2X3_types[847]); }
// Ifc2x3::IfcSurfaceOfRevolution::IfcSurfaceOfRevolution(const std::weak_ptr<InstanceData>& e) : IfcSweptSurface(e) { }
// Ifc2x3::IfcSurfaceOfRevolution::IfcSurfaceOfRevolution(::Ifc2x3::IfcProfileDef v1_SweptCurve, ::Ifc2x3::IfcAxis2Placement3D v2_Position, ::Ifc2x3::IfcAxis1Placement v3_AxisPosition) : IfcSweptSurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_SweptCurve));set_attribute_value(1, (v2_Position));set_attribute_value(2, (v3_AxisPosition));; populate_derived(); }

// Function implementations for IfcSurfaceStyle
::Ifc2x3::IfcSurfaceSide::Value Ifc2x3::IfcSurfaceStyle::Side() const {  return ::Ifc2x3::IfcSurfaceSide::FromString(get_attribute_value(1)); }
void Ifc2x3::IfcSurfaceStyle::setSide(const ::Ifc2x3::IfcSurfaceSide::Value& v) { set_attribute_value(1, EnumerationReference(&::Ifc2x3::IfcSurfaceSide::Class(), (size_t) v));if constexpr (false)unset_attribute_value(1); }
std::vector< ::Ifc2x3::IfcSurfaceStyleElementSelect > Ifc2x3::IfcSurfaceStyle::Styles() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcSurfaceStyleElementSelect>(es); }
void Ifc2x3::IfcSurfaceStyle::setStyles(const std::vector< ::Ifc2x3::IfcSurfaceStyleElementSelect >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[850]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[850]); }
// Ifc2x3::IfcSurfaceStyle::IfcSurfaceStyle(const std::weak_ptr<InstanceData>& e) : IfcPresentationStyle(e) { }
// Ifc2x3::IfcSurfaceStyle::IfcSurfaceStyle(std::optional< std::string > v1_Name, ::Ifc2x3::IfcSurfaceSide::Value v2_Side, std::vector< ::Ifc2x3::IfcSurfaceStyleElementSelect > v3_Styles) : IfcPresentationStyle(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (EnumerationReference(&::Ifc2x3::IfcSurfaceSide::Class(),(size_t)v2_Side)));set_attribute_value(2, (v3_Styles)->generalize());; populate_derived(); }

// Function implementations for IfcSurfaceStyleLighting
::Ifc2x3::IfcColourRgb Ifc2x3::IfcSurfaceStyleLighting::DiffuseTransmissionColour() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcColourRgb>(); }
void Ifc2x3::IfcSurfaceStyleLighting::setDiffuseTransmissionColour(const ::Ifc2x3::IfcColourRgb& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcColourRgb Ifc2x3::IfcSurfaceStyleLighting::DiffuseReflectionColour() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcColourRgb>(); }
void Ifc2x3::IfcSurfaceStyleLighting::setDiffuseReflectionColour(const ::Ifc2x3::IfcColourRgb& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcColourRgb Ifc2x3::IfcSurfaceStyleLighting::TransmissionColour() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcColourRgb>(); }
void Ifc2x3::IfcSurfaceStyleLighting::setTransmissionColour(const ::Ifc2x3::IfcColourRgb& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcColourRgb Ifc2x3::IfcSurfaceStyleLighting::ReflectanceColour() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcColourRgb>(); }
void Ifc2x3::IfcSurfaceStyleLighting::setReflectanceColour(const ::Ifc2x3::IfcColourRgb& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceStyleLighting::declaration() const { return *((IfcParse::entity*)IFC2X3_types[852]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceStyleLighting::Class() { return *((IfcParse::entity*)IFC2X3_types[852]); }
// Ifc2x3::IfcSurfaceStyleLighting::IfcSurfaceStyleLighting(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcSurfaceStyleLighting::IfcSurfaceStyleLighting(::Ifc2x3::IfcColourRgb v1_DiffuseTransmissionColour, ::Ifc2x3::IfcColourRgb v2_DiffuseReflectionColour, ::Ifc2x3::IfcColourRgb v3_TransmissionColour, ::Ifc2x3::IfcColourRgb v4_ReflectanceColour) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_DiffuseTransmissionColour));set_attribute_value(1, (v2_DiffuseReflectionColour));set_attribute_value(2, (v3_TransmissionColour));set_attribute_value(3, (v4_ReflectanceColour));; populate_derived(); }

// Function implementations for IfcSurfaceStyleRefraction
std::optional< double > Ifc2x3::IfcSurfaceStyleRefraction::RefractionIndex() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcSurfaceStyleRefraction::setRefractionIndex(const std::optional< double >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< double > Ifc2x3::IfcSurfaceStyleRefraction::DispersionFactor() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcSurfaceStyleRefraction::setDispersionFactor(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }


// const IfcParse::entity& Ifc2x3::IfcSurfaceStyleRefraction::declaration() const { return *((IfcParse::entity*)IFC2X3_types[853]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceStyleRefraction::Class() { return *((IfcParse::entity*)IFC2X3_types[853]); }
// Ifc2x3::IfcSurfaceStyleRefraction::IfcSurfaceStyleRefraction(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcSurfaceStyleRefraction::IfcSurfaceStyleRefraction(std::optional< double > v1_RefractionIndex, std::optional< double > v2_DispersionFactor) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) {  if (v1_RefractionIndex) {set_attribute_value(0, (*v1_RefractionIndex)); } if (v2_DispersionFactor) {set_attribute_value(1, (*v2_DispersionFactor)); }; populate_derived(); }

// Function implementations for IfcSurfaceStyleRendering
std::optional< double > Ifc2x3::IfcSurfaceStyleRendering::Transparency() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcSurfaceStyleRendering::setTransparency(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcColourOrFactor Ifc2x3::IfcSurfaceStyleRendering::DiffuseColour() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcColourOrFactor{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcColourOrFactor>(); }
void Ifc2x3::IfcSurfaceStyleRendering::setDiffuseColour(const ::Ifc2x3::IfcColourOrFactor& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcColourOrFactor Ifc2x3::IfcSurfaceStyleRendering::TransmissionColour() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcColourOrFactor{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcColourOrFactor>(); }
void Ifc2x3::IfcSurfaceStyleRendering::setTransmissionColour(const ::Ifc2x3::IfcColourOrFactor& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcColourOrFactor Ifc2x3::IfcSurfaceStyleRendering::DiffuseTransmissionColour() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcColourOrFactor{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcColourOrFactor>(); }
void Ifc2x3::IfcSurfaceStyleRendering::setDiffuseTransmissionColour(const ::Ifc2x3::IfcColourOrFactor& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcColourOrFactor Ifc2x3::IfcSurfaceStyleRendering::ReflectionColour() const { if(get_attribute_value(5).isNull()) { return ::Ifc2x3::IfcColourOrFactor{}; } return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcColourOrFactor>(); }
void Ifc2x3::IfcSurfaceStyleRendering::setReflectionColour(const ::Ifc2x3::IfcColourOrFactor& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcColourOrFactor Ifc2x3::IfcSurfaceStyleRendering::SpecularColour() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcColourOrFactor{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcColourOrFactor>(); }
void Ifc2x3::IfcSurfaceStyleRendering::setSpecularColour(const ::Ifc2x3::IfcColourOrFactor& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcSpecularHighlightSelect Ifc2x3::IfcSurfaceStyleRendering::SpecularHighlight() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcSpecularHighlightSelect{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcSpecularHighlightSelect>(); }
void Ifc2x3::IfcSurfaceStyleRendering::setSpecularHighlight(const ::Ifc2x3::IfcSpecularHighlightSelect& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }
::Ifc2x3::IfcReflectanceMethodEnum::Value Ifc2x3::IfcSurfaceStyleRendering::ReflectanceMethod() const {  return ::Ifc2x3::IfcReflectanceMethodEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcSurfaceStyleRendering::setReflectanceMethod(const ::Ifc2x3::IfcReflectanceMethodEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcReflectanceMethodEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceStyleRendering::declaration() const { return *((IfcParse::entity*)IFC2X3_types[854]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceStyleRendering::Class() { return *((IfcParse::entity*)IFC2X3_types[854]); }
// Ifc2x3::IfcSurfaceStyleRendering::IfcSurfaceStyleRendering(const std::weak_ptr<InstanceData>& e) : IfcSurfaceStyleShading(e) { }
// Ifc2x3::IfcSurfaceStyleRendering::IfcSurfaceStyleRendering(::Ifc2x3::IfcColourRgb v1_SurfaceColour, std::optional< double > v2_Transparency, ::Ifc2x3::IfcColourOrFactor v3_DiffuseColour, ::Ifc2x3::IfcColourOrFactor v4_TransmissionColour, ::Ifc2x3::IfcColourOrFactor v5_DiffuseTransmissionColour, ::Ifc2x3::IfcColourOrFactor v6_ReflectionColour, ::Ifc2x3::IfcColourOrFactor v7_SpecularColour, ::Ifc2x3::IfcSpecularHighlightSelect v8_SpecularHighlight, ::Ifc2x3::IfcReflectanceMethodEnum::Value v9_ReflectanceMethod) : IfcSurfaceStyleShading(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_SurfaceColour)); if (v2_Transparency) {set_attribute_value(1, (*v2_Transparency)); } if (v3_DiffuseColour) {set_attribute_value(2, (*v3_DiffuseColour)); } if (v4_TransmissionColour) {set_attribute_value(3, (*v4_TransmissionColour)); } if (v5_DiffuseTransmissionColour) {set_attribute_value(4, (*v5_DiffuseTransmissionColour)); } if (v6_ReflectionColour) {set_attribute_value(5, (*v6_ReflectionColour)); } if (v7_SpecularColour) {set_attribute_value(6, (*v7_SpecularColour)); } if (v8_SpecularHighlight) {set_attribute_value(7, (*v8_SpecularHighlight)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcReflectanceMethodEnum::Class(),(size_t)v9_ReflectanceMethod)));; populate_derived(); }

// Function implementations for IfcSurfaceStyleShading
::Ifc2x3::IfcColourRgb Ifc2x3::IfcSurfaceStyleShading::SurfaceColour() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcColourRgb>(); }
void Ifc2x3::IfcSurfaceStyleShading::setSurfaceColour(const ::Ifc2x3::IfcColourRgb& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceStyleShading::declaration() const { return *((IfcParse::entity*)IFC2X3_types[855]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceStyleShading::Class() { return *((IfcParse::entity*)IFC2X3_types[855]); }
// Ifc2x3::IfcSurfaceStyleShading::IfcSurfaceStyleShading(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcSurfaceStyleShading::IfcSurfaceStyleShading(::Ifc2x3::IfcColourRgb v1_SurfaceColour) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_SurfaceColour));; populate_derived(); }

// Function implementations for IfcSurfaceStyleWithTextures
std::vector< ::Ifc2x3::IfcSurfaceTexture > Ifc2x3::IfcSurfaceStyleWithTextures::Textures() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcSurfaceTexture>(es); }
void Ifc2x3::IfcSurfaceStyleWithTextures::setTextures(const std::vector< ::Ifc2x3::IfcSurfaceTexture >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceStyleWithTextures::declaration() const { return *((IfcParse::entity*)IFC2X3_types[856]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceStyleWithTextures::Class() { return *((IfcParse::entity*)IFC2X3_types[856]); }
// Ifc2x3::IfcSurfaceStyleWithTextures::IfcSurfaceStyleWithTextures(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcSurfaceStyleWithTextures::IfcSurfaceStyleWithTextures(std::vector< ::Ifc2x3::IfcSurfaceTexture > v1_Textures) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Textures)->generalize());; populate_derived(); }

// Function implementations for IfcSurfaceTexture
bool Ifc2x3::IfcSurfaceTexture::RepeatS() const {  bool v = get_attribute_value(0); return v; }
void Ifc2x3::IfcSurfaceTexture::setRepeatS(const bool& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
bool Ifc2x3::IfcSurfaceTexture::RepeatT() const {  bool v = get_attribute_value(1); return v; }
void Ifc2x3::IfcSurfaceTexture::setRepeatT(const bool& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcSurfaceTextureEnum::Value Ifc2x3::IfcSurfaceTexture::TextureType() const {  return ::Ifc2x3::IfcSurfaceTextureEnum::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcSurfaceTexture::setTextureType(const ::Ifc2x3::IfcSurfaceTextureEnum::Value& v) { set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcSurfaceTextureEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcCartesianTransformationOperator2D Ifc2x3::IfcSurfaceTexture::TextureTransform() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcCartesianTransformationOperator2D{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcCartesianTransformationOperator2D>(); }
void Ifc2x3::IfcSurfaceTexture::setTextureTransform(const ::Ifc2x3::IfcCartesianTransformationOperator2D& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcSurfaceTexture::declaration() const { return *((IfcParse::entity*)IFC2X3_types[857]); }
const IfcParse::entity& Ifc2x3::IfcSurfaceTexture::Class() { return *((IfcParse::entity*)IFC2X3_types[857]); }
// Ifc2x3::IfcSurfaceTexture::IfcSurfaceTexture(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcSurfaceTexture::IfcSurfaceTexture(bool v1_RepeatS, bool v2_RepeatT, ::Ifc2x3::IfcSurfaceTextureEnum::Value v3_TextureType, ::Ifc2x3::IfcCartesianTransformationOperator2D v4_TextureTransform) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_RepeatS));set_attribute_value(1, (v2_RepeatT));set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcSurfaceTextureEnum::Class(),(size_t)v3_TextureType))); if (v4_TextureTransform) {set_attribute_value(3, (*v4_TextureTransform)); }; populate_derived(); }

// Function implementations for IfcSweptAreaSolid
::Ifc2x3::IfcProfileDef Ifc2x3::IfcSweptAreaSolid::SweptArea() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcProfileDef>(); }
void Ifc2x3::IfcSweptAreaSolid::setSweptArea(const ::Ifc2x3::IfcProfileDef& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcSweptAreaSolid::Position() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcSweptAreaSolid::setPosition(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcSweptAreaSolid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[859]); }
const IfcParse::entity& Ifc2x3::IfcSweptAreaSolid::Class() { return *((IfcParse::entity*)IFC2X3_types[859]); }
// Ifc2x3::IfcSweptAreaSolid::IfcSweptAreaSolid(const std::weak_ptr<InstanceData>& e) : IfcSolidModel(e) { }
// Ifc2x3::IfcSweptAreaSolid::IfcSweptAreaSolid(::Ifc2x3::IfcProfileDef v1_SweptArea, ::Ifc2x3::IfcAxis2Placement3D v2_Position) : IfcSolidModel(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_SweptArea));set_attribute_value(1, (v2_Position));; populate_derived(); }

// Function implementations for IfcSweptDiskSolid
::Ifc2x3::IfcCurve Ifc2x3::IfcSweptDiskSolid::Directrix() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcSweptDiskSolid::setDirectrix(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcSweptDiskSolid::Radius() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcSweptDiskSolid::setRadius(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
std::optional< double > Ifc2x3::IfcSweptDiskSolid::InnerRadius() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcSweptDiskSolid::setInnerRadius(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
double Ifc2x3::IfcSweptDiskSolid::StartParam() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcSweptDiskSolid::setStartParam(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcSweptDiskSolid::EndParam() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcSweptDiskSolid::setEndParam(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcSweptDiskSolid::declaration() const { return *((IfcParse::entity*)IFC2X3_types[860]); }
const IfcParse::entity& Ifc2x3::IfcSweptDiskSolid::Class() { return *((IfcParse::entity*)IFC2X3_types[860]); }
// Ifc2x3::IfcSweptDiskSolid::IfcSweptDiskSolid(const std::weak_ptr<InstanceData>& e) : IfcSolidModel(e) { }
// Ifc2x3::IfcSweptDiskSolid::IfcSweptDiskSolid(::Ifc2x3::IfcCurve v1_Directrix, double v2_Radius, std::optional< double > v3_InnerRadius, double v4_StartParam, double v5_EndParam) : IfcSolidModel(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Directrix));set_attribute_value(1, (v2_Radius)); if (v3_InnerRadius) {set_attribute_value(2, (*v3_InnerRadius)); }set_attribute_value(3, (v4_StartParam));set_attribute_value(4, (v5_EndParam));; populate_derived(); }

// Function implementations for IfcSweptSurface
::Ifc2x3::IfcProfileDef Ifc2x3::IfcSweptSurface::SweptCurve() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcProfileDef>(); }
void Ifc2x3::IfcSweptSurface::setSweptCurve(const ::Ifc2x3::IfcProfileDef& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcAxis2Placement3D Ifc2x3::IfcSweptSurface::Position() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcAxis2Placement3D>(); }
void Ifc2x3::IfcSweptSurface::setPosition(const ::Ifc2x3::IfcAxis2Placement3D& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcSweptSurface::declaration() const { return *((IfcParse::entity*)IFC2X3_types[861]); }
const IfcParse::entity& Ifc2x3::IfcSweptSurface::Class() { return *((IfcParse::entity*)IFC2X3_types[861]); }
// Ifc2x3::IfcSweptSurface::IfcSweptSurface(const std::weak_ptr<InstanceData>& e) : IfcSurface(e) { }
// Ifc2x3::IfcSweptSurface::IfcSweptSurface(::Ifc2x3::IfcProfileDef v1_SweptCurve, ::Ifc2x3::IfcAxis2Placement3D v2_Position) : IfcSurface(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_SweptCurve));set_attribute_value(1, (v2_Position));; populate_derived(); }

// Function implementations for IfcSwitchingDeviceType
::Ifc2x3::IfcSwitchingDeviceTypeEnum::Value Ifc2x3::IfcSwitchingDeviceType::PredefinedType() const {  return ::Ifc2x3::IfcSwitchingDeviceTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcSwitchingDeviceType::setPredefinedType(const ::Ifc2x3::IfcSwitchingDeviceTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcSwitchingDeviceTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcSwitchingDeviceType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[862]); }
const IfcParse::entity& Ifc2x3::IfcSwitchingDeviceType::Class() { return *((IfcParse::entity*)IFC2X3_types[862]); }
// Ifc2x3::IfcSwitchingDeviceType::IfcSwitchingDeviceType(const std::weak_ptr<InstanceData>& e) : IfcFlowControllerType(e) { }
// Ifc2x3::IfcSwitchingDeviceType::IfcSwitchingDeviceType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcSwitchingDeviceTypeEnum::Value v10_PredefinedType) : IfcFlowControllerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcSwitchingDeviceTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcSymbolStyle
::Ifc2x3::IfcSymbolStyleSelect Ifc2x3::IfcSymbolStyle::StyleOfSymbol() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcSymbolStyleSelect>(); }
void Ifc2x3::IfcSymbolStyle::setStyleOfSymbol(const ::Ifc2x3::IfcSymbolStyleSelect& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcSymbolStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[864]); }
const IfcParse::entity& Ifc2x3::IfcSymbolStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[864]); }
// Ifc2x3::IfcSymbolStyle::IfcSymbolStyle(const std::weak_ptr<InstanceData>& e) : IfcPresentationStyle(e) { }
// Ifc2x3::IfcSymbolStyle::IfcSymbolStyle(std::optional< std::string > v1_Name, ::Ifc2x3::IfcSymbolStyleSelect v2_StyleOfSymbol) : IfcPresentationStyle(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); }set_attribute_value(1, (v2_StyleOfSymbol));; populate_derived(); }

// Function implementations for IfcSystem

std::vector<::Ifc2x3::IfcRelServicesBuildings> Ifc2x3::IfcSystem::ServicesBuildings() const { return cast_vector<IfcRelServicesBuildings>(file()->getInverse(data()->id(), IFC2X3_types[715], 4)); }

// const IfcParse::entity& Ifc2x3::IfcSystem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[866]); }
const IfcParse::entity& Ifc2x3::IfcSystem::Class() { return *((IfcParse::entity*)IFC2X3_types[866]); }
// Ifc2x3::IfcSystem::IfcSystem(const std::weak_ptr<InstanceData>& e) : IfcGroup(e) { }
// Ifc2x3::IfcSystem::IfcSystem(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcGroup(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }

// Function implementations for IfcSystemFurnitureElementType


// const IfcParse::entity& Ifc2x3::IfcSystemFurnitureElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[867]); }
const IfcParse::entity& Ifc2x3::IfcSystemFurnitureElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[867]); }
// Ifc2x3::IfcSystemFurnitureElementType::IfcSystemFurnitureElementType(const std::weak_ptr<InstanceData>& e) : IfcFurnishingElementType(e) { }
// Ifc2x3::IfcSystemFurnitureElementType::IfcSystemFurnitureElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType) : IfcFurnishingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }; populate_derived(); }

// Function implementations for IfcTShapeProfileDef
double Ifc2x3::IfcTShapeProfileDef::Depth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcTShapeProfileDef::setDepth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcTShapeProfileDef::FlangeWidth() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcTShapeProfileDef::setFlangeWidth(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcTShapeProfileDef::WebThickness() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcTShapeProfileDef::setWebThickness(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcTShapeProfileDef::FlangeThickness() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcTShapeProfileDef::setFlangeThickness(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< double > Ifc2x3::IfcTShapeProfileDef::FilletRadius() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcTShapeProfileDef::setFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcTShapeProfileDef::FlangeEdgeRadius() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcTShapeProfileDef::setFlangeEdgeRadius(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcTShapeProfileDef::WebEdgeRadius() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcTShapeProfileDef::setWebEdgeRadius(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcTShapeProfileDef::WebSlope() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcTShapeProfileDef::setWebSlope(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcTShapeProfileDef::FlangeSlope() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcTShapeProfileDef::setFlangeSlope(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
std::optional< double > Ifc2x3::IfcTShapeProfileDef::CentreOfGravityInY() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcTShapeProfileDef::setCentreOfGravityInY(const std::optional< double >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }


// const IfcParse::entity& Ifc2x3::IfcTShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[928]); }
const IfcParse::entity& Ifc2x3::IfcTShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[928]); }
// Ifc2x3::IfcTShapeProfileDef::IfcTShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcTShapeProfileDef::IfcTShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_Depth, double v5_FlangeWidth, double v6_WebThickness, double v7_FlangeThickness, std::optional< double > v8_FilletRadius, std::optional< double > v9_FlangeEdgeRadius, std::optional< double > v10_WebEdgeRadius, std::optional< double > v11_WebSlope, std::optional< double > v12_FlangeSlope, std::optional< double > v13_CentreOfGravityInY) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(13))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_Depth));set_attribute_value(4, (v5_FlangeWidth));set_attribute_value(5, (v6_WebThickness));set_attribute_value(6, (v7_FlangeThickness)); if (v8_FilletRadius) {set_attribute_value(7, (*v8_FilletRadius)); } if (v9_FlangeEdgeRadius) {set_attribute_value(8, (*v9_FlangeEdgeRadius)); } if (v10_WebEdgeRadius) {set_attribute_value(9, (*v10_WebEdgeRadius)); } if (v11_WebSlope) {set_attribute_value(10, (*v11_WebSlope)); } if (v12_FlangeSlope) {set_attribute_value(11, (*v12_FlangeSlope)); } if (v13_CentreOfGravityInY) {set_attribute_value(12, (*v13_CentreOfGravityInY)); }; populate_derived(); }

// Function implementations for IfcTable
std::string Ifc2x3::IfcTable::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcTable::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcTableRow > Ifc2x3::IfcTable::Rows() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcTableRow>(es); }
void Ifc2x3::IfcTable::setRows(const std::vector< ::Ifc2x3::IfcTableRow >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcTable::declaration() const { return *((IfcParse::entity*)IFC2X3_types[868]); }
const IfcParse::entity& Ifc2x3::IfcTable::Class() { return *((IfcParse::entity*)IFC2X3_types[868]); }
// Ifc2x3::IfcTable::IfcTable(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTable::IfcTable(std::string v1_Name, std::vector< ::Ifc2x3::IfcTableRow > v2_Rows) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Name));set_attribute_value(1, (v2_Rows)->generalize());; populate_derived(); }

// Function implementations for IfcTableRow
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcTableRow::RowCells() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcTableRow::setRowCells(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
bool Ifc2x3::IfcTableRow::IsHeading() const {  bool v = get_attribute_value(1); return v; }
void Ifc2x3::IfcTableRow::setIsHeading(const bool& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }

std::vector<::Ifc2x3::IfcTable> Ifc2x3::IfcTableRow::OfTable() const { return cast_vector<IfcTable>(file()->getInverse(data()->id(), IFC2X3_types[868], 1)); }

// const IfcParse::entity& Ifc2x3::IfcTableRow::declaration() const { return *((IfcParse::entity*)IFC2X3_types[869]); }
const IfcParse::entity& Ifc2x3::IfcTableRow::Class() { return *((IfcParse::entity*)IFC2X3_types[869]); }
// Ifc2x3::IfcTableRow::IfcTableRow(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTableRow::IfcTableRow(std::vector< ::Ifc2x3::IfcValue > v1_RowCells, bool v2_IsHeading) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_RowCells)->generalize());set_attribute_value(1, (v2_IsHeading));; populate_derived(); }

// Function implementations for IfcTankType
::Ifc2x3::IfcTankTypeEnum::Value Ifc2x3::IfcTankType::PredefinedType() const {  return ::Ifc2x3::IfcTankTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcTankType::setPredefinedType(const ::Ifc2x3::IfcTankTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcTankTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcTankType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[870]); }
const IfcParse::entity& Ifc2x3::IfcTankType::Class() { return *((IfcParse::entity*)IFC2X3_types[870]); }
// Ifc2x3::IfcTankType::IfcTankType(const std::weak_ptr<InstanceData>& e) : IfcFlowStorageDeviceType(e) { }
// Ifc2x3::IfcTankType::IfcTankType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcTankTypeEnum::Value v10_PredefinedType) : IfcFlowStorageDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcTankTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcTask
std::string Ifc2x3::IfcTask::TaskId() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcTask::setTaskId(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
std::optional< std::string > Ifc2x3::IfcTask::Status() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcTask::setStatus(const std::optional< std::string >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< std::string > Ifc2x3::IfcTask::WorkMethod() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcTask::setWorkMethod(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
bool Ifc2x3::IfcTask::IsMilestone() const {  bool v = get_attribute_value(8); return v; }
void Ifc2x3::IfcTask::setIsMilestone(const bool& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }
std::optional< int > Ifc2x3::IfcTask::Priority() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } int v = get_attribute_value(9); return v; }
void Ifc2x3::IfcTask::setPriority(const std::optional< int >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcTask::declaration() const { return *((IfcParse::entity*)IFC2X3_types[872]); }
const IfcParse::entity& Ifc2x3::IfcTask::Class() { return *((IfcParse::entity*)IFC2X3_types[872]); }
// Ifc2x3::IfcTask::IfcTask(const std::weak_ptr<InstanceData>& e) : IfcProcess(e) { }
// Ifc2x3::IfcTask::IfcTask(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_TaskId, std::optional< std::string > v7_Status, std::optional< std::string > v8_WorkMethod, bool v9_IsMilestone, std::optional< int > v10_Priority) : IfcProcess(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_TaskId)); if (v7_Status) {set_attribute_value(6, (*v7_Status)); } if (v8_WorkMethod) {set_attribute_value(7, (*v8_WorkMethod)); }set_attribute_value(8, (v9_IsMilestone)); if (v10_Priority) {set_attribute_value(9, (*v10_Priority)); }; populate_derived(); }

// Function implementations for IfcTelecomAddress
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcTelecomAddress::TelephoneNumbers() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(3); return v; }
void Ifc2x3::IfcTelecomAddress::setTelephoneNumbers(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcTelecomAddress::FacsimileNumbers() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(4); return v; }
void Ifc2x3::IfcTelecomAddress::setFacsimileNumbers(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< std::string > Ifc2x3::IfcTelecomAddress::PagerNumber() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcTelecomAddress::setPagerNumber(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcTelecomAddress::ElectronicMailAddresses() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(6); return v; }
void Ifc2x3::IfcTelecomAddress::setElectronicMailAddresses(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< std::string > Ifc2x3::IfcTelecomAddress::WWWHomePageURL() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcTelecomAddress::setWWWHomePageURL(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcTelecomAddress::declaration() const { return *((IfcParse::entity*)IFC2X3_types[873]); }
const IfcParse::entity& Ifc2x3::IfcTelecomAddress::Class() { return *((IfcParse::entity*)IFC2X3_types[873]); }
// Ifc2x3::IfcTelecomAddress::IfcTelecomAddress(const std::weak_ptr<InstanceData>& e) : IfcAddress(e) { }
// Ifc2x3::IfcTelecomAddress::IfcTelecomAddress(std::optional< ::Ifc2x3::IfcAddressTypeEnum::Value > v1_Purpose, std::optional< std::string > v2_Description, std::optional< std::string > v3_UserDefinedPurpose, std::optional< std::vector< std::string > /*[1:?]*/ > v4_TelephoneNumbers, std::optional< std::vector< std::string > /*[1:?]*/ > v5_FacsimileNumbers, std::optional< std::string > v6_PagerNumber, std::optional< std::vector< std::string > /*[1:?]*/ > v7_ElectronicMailAddresses, std::optional< std::string > v8_WWWHomePageURL) : IfcAddress(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) {  if (v1_Purpose) {set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcAddressTypeEnum::Class(),(size_t)*v1_Purpose))); } if (v2_Description) {set_attribute_value(1, (*v2_Description)); } if (v3_UserDefinedPurpose) {set_attribute_value(2, (*v3_UserDefinedPurpose)); } if (v4_TelephoneNumbers) {set_attribute_value(3, (*v4_TelephoneNumbers)); } if (v5_FacsimileNumbers) {set_attribute_value(4, (*v5_FacsimileNumbers)); } if (v6_PagerNumber) {set_attribute_value(5, (*v6_PagerNumber)); } if (v7_ElectronicMailAddresses) {set_attribute_value(6, (*v7_ElectronicMailAddresses)); } if (v8_WWWHomePageURL) {set_attribute_value(7, (*v8_WWWHomePageURL)); }; populate_derived(); }

// Function implementations for IfcTendon
::Ifc2x3::IfcTendonTypeEnum::Value Ifc2x3::IfcTendon::PredefinedType() const {  return ::Ifc2x3::IfcTendonTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcTendon::setPredefinedType(const ::Ifc2x3::IfcTendonTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcTendonTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }
double Ifc2x3::IfcTendon::NominalDiameter() const {  double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcTendon::setNominalDiameter(const double& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
double Ifc2x3::IfcTendon::CrossSectionArea() const {  double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcTendon::setCrossSectionArea(const double& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
std::optional< double > Ifc2x3::IfcTendon::TensionForce() const { if(get_attribute_value(12).isNull()) { return std::nullopt; } double v = get_attribute_value(12); return v; }
void Ifc2x3::IfcTendon::setTensionForce(const std::optional< double >& v) { if (v) {set_attribute_value(12, *v);} else {unset_attribute_value(12);} }
std::optional< double > Ifc2x3::IfcTendon::PreStress() const { if(get_attribute_value(13).isNull()) { return std::nullopt; } double v = get_attribute_value(13); return v; }
void Ifc2x3::IfcTendon::setPreStress(const std::optional< double >& v) { if (v) {set_attribute_value(13, *v);} else {unset_attribute_value(13);} }
std::optional< double > Ifc2x3::IfcTendon::FrictionCoefficient() const { if(get_attribute_value(14).isNull()) { return std::nullopt; } double v = get_attribute_value(14); return v; }
void Ifc2x3::IfcTendon::setFrictionCoefficient(const std::optional< double >& v) { if (v) {set_attribute_value(14, *v);} else {unset_attribute_value(14);} }
std::optional< double > Ifc2x3::IfcTendon::AnchorageSlip() const { if(get_attribute_value(15).isNull()) { return std::nullopt; } double v = get_attribute_value(15); return v; }
void Ifc2x3::IfcTendon::setAnchorageSlip(const std::optional< double >& v) { if (v) {set_attribute_value(15, *v);} else {unset_attribute_value(15);} }
std::optional< double > Ifc2x3::IfcTendon::MinCurvatureRadius() const { if(get_attribute_value(16).isNull()) { return std::nullopt; } double v = get_attribute_value(16); return v; }
void Ifc2x3::IfcTendon::setMinCurvatureRadius(const std::optional< double >& v) { if (v) {set_attribute_value(16, *v);} else {unset_attribute_value(16);} }


// const IfcParse::entity& Ifc2x3::IfcTendon::declaration() const { return *((IfcParse::entity*)IFC2X3_types[875]); }
const IfcParse::entity& Ifc2x3::IfcTendon::Class() { return *((IfcParse::entity*)IFC2X3_types[875]); }
// Ifc2x3::IfcTendon::IfcTendon(const std::weak_ptr<InstanceData>& e) : IfcReinforcingElement(e) { }
// Ifc2x3::IfcTendon::IfcTendon(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< std::string > v9_SteelGrade, ::Ifc2x3::IfcTendonTypeEnum::Value v10_PredefinedType, double v11_NominalDiameter, double v12_CrossSectionArea, std::optional< double > v13_TensionForce, std::optional< double > v14_PreStress, std::optional< double > v15_FrictionCoefficient, std::optional< double > v16_AnchorageSlip, std::optional< double > v17_MinCurvatureRadius) : IfcReinforcingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(17))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_SteelGrade) {set_attribute_value(8, (*v9_SteelGrade)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcTendonTypeEnum::Class(),(size_t)v10_PredefinedType)));set_attribute_value(10, (v11_NominalDiameter));set_attribute_value(11, (v12_CrossSectionArea)); if (v13_TensionForce) {set_attribute_value(12, (*v13_TensionForce)); } if (v14_PreStress) {set_attribute_value(13, (*v14_PreStress)); } if (v15_FrictionCoefficient) {set_attribute_value(14, (*v15_FrictionCoefficient)); } if (v16_AnchorageSlip) {set_attribute_value(15, (*v16_AnchorageSlip)); } if (v17_MinCurvatureRadius) {set_attribute_value(16, (*v17_MinCurvatureRadius)); }; populate_derived(); }

// Function implementations for IfcTendonAnchor


// const IfcParse::entity& Ifc2x3::IfcTendonAnchor::declaration() const { return *((IfcParse::entity*)IFC2X3_types[876]); }
const IfcParse::entity& Ifc2x3::IfcTendonAnchor::Class() { return *((IfcParse::entity*)IFC2X3_types[876]); }
// Ifc2x3::IfcTendonAnchor::IfcTendonAnchor(const std::weak_ptr<InstanceData>& e) : IfcReinforcingElement(e) { }
// Ifc2x3::IfcTendonAnchor::IfcTendonAnchor(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< std::string > v9_SteelGrade) : IfcReinforcingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_SteelGrade) {set_attribute_value(8, (*v9_SteelGrade)); }; populate_derived(); }

// Function implementations for IfcTerminatorSymbol
::Ifc2x3::IfcAnnotationCurveOccurrence Ifc2x3::IfcTerminatorSymbol::AnnotatedCurve() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcAnnotationCurveOccurrence>(); }
void Ifc2x3::IfcTerminatorSymbol::setAnnotatedCurve(const ::Ifc2x3::IfcAnnotationCurveOccurrence& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcTerminatorSymbol::declaration() const { return *((IfcParse::entity*)IFC2X3_types[878]); }
const IfcParse::entity& Ifc2x3::IfcTerminatorSymbol::Class() { return *((IfcParse::entity*)IFC2X3_types[878]); }
// Ifc2x3::IfcTerminatorSymbol::IfcTerminatorSymbol(const std::weak_ptr<InstanceData>& e) : IfcAnnotationSymbolOccurrence(e) { }
// Ifc2x3::IfcTerminatorSymbol::IfcTerminatorSymbol(::Ifc2x3::IfcRepresentationItem v1_Item, std::vector< ::Ifc2x3::IfcPresentationStyleAssignment > v2_Styles, std::optional< std::string > v3_Name, ::Ifc2x3::IfcAnnotationCurveOccurrence v4_AnnotatedCurve) : IfcAnnotationSymbolOccurrence(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Item) {set_attribute_value(0, (*v1_Item)); }set_attribute_value(1, (v2_Styles)->generalize()); if (v3_Name) {set_attribute_value(2, (*v3_Name)); }set_attribute_value(3, (v4_AnnotatedCurve));; populate_derived(); }

// Function implementations for IfcTextLiteral
std::string Ifc2x3::IfcTextLiteral::Literal() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcTextLiteral::setLiteral(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcAxis2Placement Ifc2x3::IfcTextLiteral::Placement() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcAxis2Placement>(); }
void Ifc2x3::IfcTextLiteral::setPlacement(const ::Ifc2x3::IfcAxis2Placement& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcTextPath::Value Ifc2x3::IfcTextLiteral::Path() const {  return ::Ifc2x3::IfcTextPath::FromString(get_attribute_value(2)); }
void Ifc2x3::IfcTextLiteral::setPath(const ::Ifc2x3::IfcTextPath::Value& v) { set_attribute_value(2, EnumerationReference(&::Ifc2x3::IfcTextPath::Class(), (size_t) v));if constexpr (false)unset_attribute_value(2); }


// const IfcParse::entity& Ifc2x3::IfcTextLiteral::declaration() const { return *((IfcParse::entity*)IFC2X3_types[884]); }
const IfcParse::entity& Ifc2x3::IfcTextLiteral::Class() { return *((IfcParse::entity*)IFC2X3_types[884]); }
// Ifc2x3::IfcTextLiteral::IfcTextLiteral(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcTextLiteral::IfcTextLiteral(std::string v1_Literal, ::Ifc2x3::IfcAxis2Placement v2_Placement, ::Ifc2x3::IfcTextPath::Value v3_Path) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(3))) { set_attribute_value(0, (v1_Literal));set_attribute_value(1, (v2_Placement));set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcTextPath::Class(),(size_t)v3_Path)));; populate_derived(); }

// Function implementations for IfcTextLiteralWithExtent
::Ifc2x3::IfcPlanarExtent Ifc2x3::IfcTextLiteralWithExtent::Extent() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcPlanarExtent>(); }
void Ifc2x3::IfcTextLiteralWithExtent::setExtent(const ::Ifc2x3::IfcPlanarExtent& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
std::string Ifc2x3::IfcTextLiteralWithExtent::BoxAlignment() const {  std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcTextLiteralWithExtent::setBoxAlignment(const std::string& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcTextLiteralWithExtent::declaration() const { return *((IfcParse::entity*)IFC2X3_types[885]); }
const IfcParse::entity& Ifc2x3::IfcTextLiteralWithExtent::Class() { return *((IfcParse::entity*)IFC2X3_types[885]); }
// Ifc2x3::IfcTextLiteralWithExtent::IfcTextLiteralWithExtent(const std::weak_ptr<InstanceData>& e) : IfcTextLiteral(e) { }
// Ifc2x3::IfcTextLiteralWithExtent::IfcTextLiteralWithExtent(std::string v1_Literal, ::Ifc2x3::IfcAxis2Placement v2_Placement, ::Ifc2x3::IfcTextPath::Value v3_Path, ::Ifc2x3::IfcPlanarExtent v4_Extent, std::string v5_BoxAlignment) : IfcTextLiteral(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Literal));set_attribute_value(1, (v2_Placement));set_attribute_value(2, (EnumerationReference(&::Ifc2x3::IfcTextPath::Class(),(size_t)v3_Path)));set_attribute_value(3, (v4_Extent));set_attribute_value(4, (v5_BoxAlignment));; populate_derived(); }

// Function implementations for IfcTextStyle
::Ifc2x3::IfcCharacterStyleSelect Ifc2x3::IfcTextStyle::TextCharacterAppearance() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcCharacterStyleSelect{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcCharacterStyleSelect>(); }
void Ifc2x3::IfcTextStyle::setTextCharacterAppearance(const ::Ifc2x3::IfcCharacterStyleSelect& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }
::Ifc2x3::IfcTextStyleSelect Ifc2x3::IfcTextStyle::TextStyle() const { if(get_attribute_value(2).isNull()) { return ::Ifc2x3::IfcTextStyleSelect{}; } return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcTextStyleSelect>(); }
void Ifc2x3::IfcTextStyle::setTextStyle(const ::Ifc2x3::IfcTextStyleSelect& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcTextFontSelect Ifc2x3::IfcTextStyle::TextFontStyle() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcTextFontSelect>(); }
void Ifc2x3::IfcTextStyle::setTextFontStyle(const ::Ifc2x3::IfcTextFontSelect& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }


// const IfcParse::entity& Ifc2x3::IfcTextStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[887]); }
const IfcParse::entity& Ifc2x3::IfcTextStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[887]); }
// Ifc2x3::IfcTextStyle::IfcTextStyle(const std::weak_ptr<InstanceData>& e) : IfcPresentationStyle(e) { }
// Ifc2x3::IfcTextStyle::IfcTextStyle(std::optional< std::string > v1_Name, ::Ifc2x3::IfcCharacterStyleSelect v2_TextCharacterAppearance, ::Ifc2x3::IfcTextStyleSelect v3_TextStyle, ::Ifc2x3::IfcTextFontSelect v4_TextFontStyle) : IfcPresentationStyle(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) {  if (v1_Name) {set_attribute_value(0, (*v1_Name)); } if (v2_TextCharacterAppearance) {set_attribute_value(1, (*v2_TextCharacterAppearance)); } if (v3_TextStyle) {set_attribute_value(2, (*v3_TextStyle)); }set_attribute_value(3, (v4_TextFontStyle));; populate_derived(); }

// Function implementations for IfcTextStyleFontModel
std::optional< std::vector< std::string > /*[1:?]*/ > Ifc2x3::IfcTextStyleFontModel::FontFamily() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::vector< std::string > /*[1:?]*/ v = get_attribute_value(1); return v; }
void Ifc2x3::IfcTextStyleFontModel::setFontFamily(const std::optional< std::vector< std::string > /*[1:?]*/ >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcTextStyleFontModel::FontStyle() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcTextStyleFontModel::setFontStyle(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< std::string > Ifc2x3::IfcTextStyleFontModel::FontVariant() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } std::string v = get_attribute_value(3); return v; }
void Ifc2x3::IfcTextStyleFontModel::setFontVariant(const std::optional< std::string >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< std::string > Ifc2x3::IfcTextStyleFontModel::FontWeight() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcTextStyleFontModel::setFontWeight(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
::Ifc2x3::IfcSizeSelect Ifc2x3::IfcTextStyleFontModel::FontSize() const {  return ((express::Base)(get_attribute_value(5))).as<::Ifc2x3::IfcSizeSelect>(); }
void Ifc2x3::IfcTextStyleFontModel::setFontSize(const ::Ifc2x3::IfcSizeSelect& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }


// const IfcParse::entity& Ifc2x3::IfcTextStyleFontModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[888]); }
const IfcParse::entity& Ifc2x3::IfcTextStyleFontModel::Class() { return *((IfcParse::entity*)IFC2X3_types[888]); }
// Ifc2x3::IfcTextStyleFontModel::IfcTextStyleFontModel(const std::weak_ptr<InstanceData>& e) : IfcPreDefinedTextFont(e) { }
// Ifc2x3::IfcTextStyleFontModel::IfcTextStyleFontModel(std::string v1_Name, std::optional< std::vector< std::string > /*[1:?]*/ > v2_FontFamily, std::optional< std::string > v3_FontStyle, std::optional< std::string > v4_FontVariant, std::optional< std::string > v5_FontWeight, ::Ifc2x3::IfcSizeSelect v6_FontSize) : IfcPreDefinedTextFont(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_Name)); if (v2_FontFamily) {set_attribute_value(1, (*v2_FontFamily)); } if (v3_FontStyle) {set_attribute_value(2, (*v3_FontStyle)); } if (v4_FontVariant) {set_attribute_value(3, (*v4_FontVariant)); } if (v5_FontWeight) {set_attribute_value(4, (*v5_FontWeight)); }set_attribute_value(5, (v6_FontSize));; populate_derived(); }

// Function implementations for IfcTextStyleForDefinedFont
::Ifc2x3::IfcColour Ifc2x3::IfcTextStyleForDefinedFont::Colour() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcColour>(); }
void Ifc2x3::IfcTextStyleForDefinedFont::setColour(const ::Ifc2x3::IfcColour& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
::Ifc2x3::IfcColour Ifc2x3::IfcTextStyleForDefinedFont::BackgroundColour() const { if(get_attribute_value(1).isNull()) { return ::Ifc2x3::IfcColour{}; } return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcColour>(); }
void Ifc2x3::IfcTextStyleForDefinedFont::setBackgroundColour(const ::Ifc2x3::IfcColour& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcTextStyleForDefinedFont::declaration() const { return *((IfcParse::entity*)IFC2X3_types[889]); }
const IfcParse::entity& Ifc2x3::IfcTextStyleForDefinedFont::Class() { return *((IfcParse::entity*)IFC2X3_types[889]); }
// Ifc2x3::IfcTextStyleForDefinedFont::IfcTextStyleForDefinedFont(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTextStyleForDefinedFont::IfcTextStyleForDefinedFont(::Ifc2x3::IfcColour v1_Colour, ::Ifc2x3::IfcColour v2_BackgroundColour) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Colour)); if (v2_BackgroundColour) {set_attribute_value(1, (*v2_BackgroundColour)); }; populate_derived(); }

// Function implementations for IfcTextStyleTextModel
::Ifc2x3::IfcSizeSelect Ifc2x3::IfcTextStyleTextModel::TextIndent() const { if(get_attribute_value(0).isNull()) { return ::Ifc2x3::IfcSizeSelect{}; } return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcSizeSelect>(); }
void Ifc2x3::IfcTextStyleTextModel::setTextIndent(const ::Ifc2x3::IfcSizeSelect& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcTextStyleTextModel::TextAlign() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcTextStyleTextModel::setTextAlign(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< std::string > Ifc2x3::IfcTextStyleTextModel::TextDecoration() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } std::string v = get_attribute_value(2); return v; }
void Ifc2x3::IfcTextStyleTextModel::setTextDecoration(const std::optional< std::string >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
::Ifc2x3::IfcSizeSelect Ifc2x3::IfcTextStyleTextModel::LetterSpacing() const { if(get_attribute_value(3).isNull()) { return ::Ifc2x3::IfcSizeSelect{}; } return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcSizeSelect>(); }
void Ifc2x3::IfcTextStyleTextModel::setLetterSpacing(const ::Ifc2x3::IfcSizeSelect& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcSizeSelect Ifc2x3::IfcTextStyleTextModel::WordSpacing() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcSizeSelect{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcSizeSelect>(); }
void Ifc2x3::IfcTextStyleTextModel::setWordSpacing(const ::Ifc2x3::IfcSizeSelect& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
std::optional< std::string > Ifc2x3::IfcTextStyleTextModel::TextTransform() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcTextStyleTextModel::setTextTransform(const std::optional< std::string >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
::Ifc2x3::IfcSizeSelect Ifc2x3::IfcTextStyleTextModel::LineHeight() const { if(get_attribute_value(6).isNull()) { return ::Ifc2x3::IfcSizeSelect{}; } return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcSizeSelect>(); }
void Ifc2x3::IfcTextStyleTextModel::setLineHeight(const ::Ifc2x3::IfcSizeSelect& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcTextStyleTextModel::declaration() const { return *((IfcParse::entity*)IFC2X3_types[891]); }
const IfcParse::entity& Ifc2x3::IfcTextStyleTextModel::Class() { return *((IfcParse::entity*)IFC2X3_types[891]); }
// Ifc2x3::IfcTextStyleTextModel::IfcTextStyleTextModel(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTextStyleTextModel::IfcTextStyleTextModel(::Ifc2x3::IfcSizeSelect v1_TextIndent, std::optional< std::string > v2_TextAlign, std::optional< std::string > v3_TextDecoration, ::Ifc2x3::IfcSizeSelect v4_LetterSpacing, ::Ifc2x3::IfcSizeSelect v5_WordSpacing, std::optional< std::string > v6_TextTransform, ::Ifc2x3::IfcSizeSelect v7_LineHeight) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) {  if (v1_TextIndent) {set_attribute_value(0, (*v1_TextIndent)); } if (v2_TextAlign) {set_attribute_value(1, (*v2_TextAlign)); } if (v3_TextDecoration) {set_attribute_value(2, (*v3_TextDecoration)); } if (v4_LetterSpacing) {set_attribute_value(3, (*v4_LetterSpacing)); } if (v5_WordSpacing) {set_attribute_value(4, (*v5_WordSpacing)); } if (v6_TextTransform) {set_attribute_value(5, (*v6_TextTransform)); } if (v7_LineHeight) {set_attribute_value(6, (*v7_LineHeight)); }; populate_derived(); }

// Function implementations for IfcTextStyleWithBoxCharacteristics
std::optional< double > Ifc2x3::IfcTextStyleWithBoxCharacteristics::BoxHeight() const { if(get_attribute_value(0).isNull()) { return std::nullopt; } double v = get_attribute_value(0); return v; }
void Ifc2x3::IfcTextStyleWithBoxCharacteristics::setBoxHeight(const std::optional< double >& v) { if (v) {set_attribute_value(0, *v);} else {unset_attribute_value(0);} }
std::optional< double > Ifc2x3::IfcTextStyleWithBoxCharacteristics::BoxWidth() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcTextStyleWithBoxCharacteristics::setBoxWidth(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcTextStyleWithBoxCharacteristics::BoxSlantAngle() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcTextStyleWithBoxCharacteristics::setBoxSlantAngle(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcTextStyleWithBoxCharacteristics::BoxRotateAngle() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcTextStyleWithBoxCharacteristics::setBoxRotateAngle(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
::Ifc2x3::IfcSizeSelect Ifc2x3::IfcTextStyleWithBoxCharacteristics::CharacterSpacing() const { if(get_attribute_value(4).isNull()) { return ::Ifc2x3::IfcSizeSelect{}; } return ((express::Base)(get_attribute_value(4))).as<::Ifc2x3::IfcSizeSelect>(); }
void Ifc2x3::IfcTextStyleWithBoxCharacteristics::setCharacterSpacing(const ::Ifc2x3::IfcSizeSelect& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcTextStyleWithBoxCharacteristics::declaration() const { return *((IfcParse::entity*)IFC2X3_types[892]); }
const IfcParse::entity& Ifc2x3::IfcTextStyleWithBoxCharacteristics::Class() { return *((IfcParse::entity*)IFC2X3_types[892]); }
// Ifc2x3::IfcTextStyleWithBoxCharacteristics::IfcTextStyleWithBoxCharacteristics(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTextStyleWithBoxCharacteristics::IfcTextStyleWithBoxCharacteristics(std::optional< double > v1_BoxHeight, std::optional< double > v2_BoxWidth, std::optional< double > v3_BoxSlantAngle, std::optional< double > v4_BoxRotateAngle, ::Ifc2x3::IfcSizeSelect v5_CharacterSpacing) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) {  if (v1_BoxHeight) {set_attribute_value(0, (*v1_BoxHeight)); } if (v2_BoxWidth) {set_attribute_value(1, (*v2_BoxWidth)); } if (v3_BoxSlantAngle) {set_attribute_value(2, (*v3_BoxSlantAngle)); } if (v4_BoxRotateAngle) {set_attribute_value(3, (*v4_BoxRotateAngle)); } if (v5_CharacterSpacing) {set_attribute_value(4, (*v5_CharacterSpacing)); }; populate_derived(); }

// Function implementations for IfcTextureCoordinate

std::vector<::Ifc2x3::IfcAnnotationSurface> Ifc2x3::IfcTextureCoordinate::AnnotatedSurface() const { return cast_vector<IfcAnnotationSurface>(file()->getInverse(data()->id(), IFC2X3_types[32], 1)); }

// const IfcParse::entity& Ifc2x3::IfcTextureCoordinate::declaration() const { return *((IfcParse::entity*)IFC2X3_types[894]); }
const IfcParse::entity& Ifc2x3::IfcTextureCoordinate::Class() { return *((IfcParse::entity*)IFC2X3_types[894]); }
// Ifc2x3::IfcTextureCoordinate::IfcTextureCoordinate(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTextureCoordinate::IfcTextureCoordinate() : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcTextureCoordinateGenerator
std::string Ifc2x3::IfcTextureCoordinateGenerator::Mode() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcTextureCoordinateGenerator::setMode(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcSimpleValue > Ifc2x3::IfcTextureCoordinateGenerator::Parameter() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcSimpleValue>(es); }
void Ifc2x3::IfcTextureCoordinateGenerator::setParameter(const std::vector< ::Ifc2x3::IfcSimpleValue >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcTextureCoordinateGenerator::declaration() const { return *((IfcParse::entity*)IFC2X3_types[895]); }
const IfcParse::entity& Ifc2x3::IfcTextureCoordinateGenerator::Class() { return *((IfcParse::entity*)IFC2X3_types[895]); }
// Ifc2x3::IfcTextureCoordinateGenerator::IfcTextureCoordinateGenerator(const std::weak_ptr<InstanceData>& e) : IfcTextureCoordinate(e) { }
// Ifc2x3::IfcTextureCoordinateGenerator::IfcTextureCoordinateGenerator(std::string v1_Mode, std::vector< ::Ifc2x3::IfcSimpleValue > v2_Parameter) : IfcTextureCoordinate(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Mode));set_attribute_value(1, (v2_Parameter)->generalize());; populate_derived(); }

// Function implementations for IfcTextureMap
std::vector< ::Ifc2x3::IfcVertexBasedTextureMap > Ifc2x3::IfcTextureMap::TextureMaps() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcVertexBasedTextureMap>(es); }
void Ifc2x3::IfcTextureMap::setTextureMaps(const std::vector< ::Ifc2x3::IfcVertexBasedTextureMap >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcTextureMap::declaration() const { return *((IfcParse::entity*)IFC2X3_types[896]); }
const IfcParse::entity& Ifc2x3::IfcTextureMap::Class() { return *((IfcParse::entity*)IFC2X3_types[896]); }
// Ifc2x3::IfcTextureMap::IfcTextureMap(const std::weak_ptr<InstanceData>& e) : IfcTextureCoordinate(e) { }
// Ifc2x3::IfcTextureMap::IfcTextureMap(std::vector< ::Ifc2x3::IfcVertexBasedTextureMap > v1_TextureMaps) : IfcTextureCoordinate(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_TextureMaps)->generalize());; populate_derived(); }

// Function implementations for IfcTextureVertex
std::vector< double > /*[2:2]*/ Ifc2x3::IfcTextureVertex::Coordinates() const {  std::vector< double > /*[2:2]*/ v = get_attribute_value(0); return v; }
void Ifc2x3::IfcTextureVertex::setCoordinates(const std::vector< double > /*[2:2]*/& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcTextureVertex::declaration() const { return *((IfcParse::entity*)IFC2X3_types[897]); }
const IfcParse::entity& Ifc2x3::IfcTextureVertex::Class() { return *((IfcParse::entity*)IFC2X3_types[897]); }
// Ifc2x3::IfcTextureVertex::IfcTextureVertex(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTextureVertex::IfcTextureVertex(std::vector< double > /*[2:2]*/ v1_Coordinates) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Coordinates));; populate_derived(); }

// Function implementations for IfcThermalMaterialProperties
std::optional< double > Ifc2x3::IfcThermalMaterialProperties::SpecificHeatCapacity() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcThermalMaterialProperties::setSpecificHeatCapacity(const std::optional< double >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcThermalMaterialProperties::BoilingPoint() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcThermalMaterialProperties::setBoilingPoint(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcThermalMaterialProperties::FreezingPoint() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcThermalMaterialProperties::setFreezingPoint(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcThermalMaterialProperties::ThermalConductivity() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcThermalMaterialProperties::setThermalConductivity(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }


// const IfcParse::entity& Ifc2x3::IfcThermalMaterialProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[903]); }
const IfcParse::entity& Ifc2x3::IfcThermalMaterialProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[903]); }
// Ifc2x3::IfcThermalMaterialProperties::IfcThermalMaterialProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcThermalMaterialProperties::IfcThermalMaterialProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< double > v2_SpecificHeatCapacity, std::optional< double > v3_BoilingPoint, std::optional< double > v4_FreezingPoint, std::optional< double > v5_ThermalConductivity) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_Material)); if (v2_SpecificHeatCapacity) {set_attribute_value(1, (*v2_SpecificHeatCapacity)); } if (v3_BoilingPoint) {set_attribute_value(2, (*v3_BoilingPoint)); } if (v4_FreezingPoint) {set_attribute_value(3, (*v4_FreezingPoint)); } if (v5_ThermalConductivity) {set_attribute_value(4, (*v5_ThermalConductivity)); }; populate_derived(); }

// Function implementations for IfcTimeSeries
std::string Ifc2x3::IfcTimeSeries::Name() const {  std::string v = get_attribute_value(0); return v; }
void Ifc2x3::IfcTimeSeries::setName(const std::string& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::optional< std::string > Ifc2x3::IfcTimeSeries::Description() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } std::string v = get_attribute_value(1); return v; }
void Ifc2x3::IfcTimeSeries::setDescription(const std::optional< std::string >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcTimeSeries::StartTime() const {  return ((express::Base)(get_attribute_value(2))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcTimeSeries::setStartTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(2, v);if constexpr (false)unset_attribute_value(2); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcTimeSeries::EndTime() const {  return ((express::Base)(get_attribute_value(3))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcTimeSeries::setEndTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcTimeSeriesDataTypeEnum::Value Ifc2x3::IfcTimeSeries::TimeSeriesDataType() const {  return ::Ifc2x3::IfcTimeSeriesDataTypeEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcTimeSeries::setTimeSeriesDataType(const ::Ifc2x3::IfcTimeSeriesDataTypeEnum::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcTimeSeriesDataTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcDataOriginEnum::Value Ifc2x3::IfcTimeSeries::DataOrigin() const {  return ::Ifc2x3::IfcDataOriginEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcTimeSeries::setDataOrigin(const ::Ifc2x3::IfcDataOriginEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcDataOriginEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
std::optional< std::string > Ifc2x3::IfcTimeSeries::UserDefinedDataOrigin() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::string v = get_attribute_value(6); return v; }
void Ifc2x3::IfcTimeSeries::setUserDefinedDataOrigin(const std::optional< std::string >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
::Ifc2x3::IfcUnit Ifc2x3::IfcTimeSeries::Unit() const { if(get_attribute_value(7).isNull()) { return ::Ifc2x3::IfcUnit{}; } return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcUnit>(); }
void Ifc2x3::IfcTimeSeries::setUnit(const ::Ifc2x3::IfcUnit& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }

std::vector<::Ifc2x3::IfcTimeSeriesReferenceRelationship> Ifc2x3::IfcTimeSeries::DocumentedBy() const { return cast_vector<IfcTimeSeriesReferenceRelationship>(file()->getInverse(data()->id(), IFC2X3_types[910], 0)); }

// const IfcParse::entity& Ifc2x3::IfcTimeSeries::declaration() const { return *((IfcParse::entity*)IFC2X3_types[908]); }
const IfcParse::entity& Ifc2x3::IfcTimeSeries::Class() { return *((IfcParse::entity*)IFC2X3_types[908]); }
// Ifc2x3::IfcTimeSeries::IfcTimeSeries(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTimeSeries::IfcTimeSeries(std::string v1_Name, std::optional< std::string > v2_Description, ::Ifc2x3::IfcDateTimeSelect v3_StartTime, ::Ifc2x3::IfcDateTimeSelect v4_EndTime, ::Ifc2x3::IfcTimeSeriesDataTypeEnum::Value v5_TimeSeriesDataType, ::Ifc2x3::IfcDataOriginEnum::Value v6_DataOrigin, std::optional< std::string > v7_UserDefinedDataOrigin, ::Ifc2x3::IfcUnit v8_Unit) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_Name)); if (v2_Description) {set_attribute_value(1, (*v2_Description)); }set_attribute_value(2, (v3_StartTime));set_attribute_value(3, (v4_EndTime));set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcTimeSeriesDataTypeEnum::Class(),(size_t)v5_TimeSeriesDataType)));set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcDataOriginEnum::Class(),(size_t)v6_DataOrigin))); if (v7_UserDefinedDataOrigin) {set_attribute_value(6, (*v7_UserDefinedDataOrigin)); } if (v8_Unit) {set_attribute_value(7, (*v8_Unit)); }; populate_derived(); }

// Function implementations for IfcTimeSeriesReferenceRelationship
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcTimeSeriesReferenceRelationship::ReferencedTimeSeries() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcTimeSeriesReferenceRelationship::setReferencedTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcDocumentSelect > Ifc2x3::IfcTimeSeriesReferenceRelationship::TimeSeriesReferences() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcDocumentSelect>(es); }
void Ifc2x3::IfcTimeSeriesReferenceRelationship::setTimeSeriesReferences(const std::vector< ::Ifc2x3::IfcDocumentSelect >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcTimeSeriesReferenceRelationship::declaration() const { return *((IfcParse::entity*)IFC2X3_types[910]); }
const IfcParse::entity& Ifc2x3::IfcTimeSeriesReferenceRelationship::Class() { return *((IfcParse::entity*)IFC2X3_types[910]); }
// Ifc2x3::IfcTimeSeriesReferenceRelationship::IfcTimeSeriesReferenceRelationship(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTimeSeriesReferenceRelationship::IfcTimeSeriesReferenceRelationship(::Ifc2x3::IfcTimeSeries v1_ReferencedTimeSeries, std::vector< ::Ifc2x3::IfcDocumentSelect > v2_TimeSeriesReferences) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_ReferencedTimeSeries));set_attribute_value(1, (v2_TimeSeriesReferences)->generalize());; populate_derived(); }

// Function implementations for IfcTimeSeriesSchedule
std::optional< std::vector< ::Ifc2x3::IfcDateTimeSelect > > Ifc2x3::IfcTimeSeriesSchedule::ApplicableDates() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcDateTimeSelect>(es); }
void Ifc2x3::IfcTimeSeriesSchedule::setApplicableDates(const std::optional< std::vector< ::Ifc2x3::IfcDateTimeSelect > >& v) { if (v) {set_attribute_value(5, cast_vector<express::Base>(*v));} else {unset_attribute_value(5);} }
::Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Value Ifc2x3::IfcTimeSeriesSchedule::TimeSeriesScheduleType() const {  return ::Ifc2x3::IfcTimeSeriesScheduleTypeEnum::FromString(get_attribute_value(6)); }
void Ifc2x3::IfcTimeSeriesSchedule::setTimeSeriesScheduleType(const ::Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Value& v) { set_attribute_value(6, EnumerationReference(&::Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(6); }
::Ifc2x3::IfcTimeSeries Ifc2x3::IfcTimeSeriesSchedule::TimeSeries() const {  return ((express::Base)(get_attribute_value(7))).as<::Ifc2x3::IfcTimeSeries>(); }
void Ifc2x3::IfcTimeSeriesSchedule::setTimeSeries(const ::Ifc2x3::IfcTimeSeries& v) { set_attribute_value(7, v);if constexpr (false)unset_attribute_value(7); }


// const IfcParse::entity& Ifc2x3::IfcTimeSeriesSchedule::declaration() const { return *((IfcParse::entity*)IFC2X3_types[911]); }
const IfcParse::entity& Ifc2x3::IfcTimeSeriesSchedule::Class() { return *((IfcParse::entity*)IFC2X3_types[911]); }
// Ifc2x3::IfcTimeSeriesSchedule::IfcTimeSeriesSchedule(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcTimeSeriesSchedule::IfcTimeSeriesSchedule(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::optional< std::vector< ::Ifc2x3::IfcDateTimeSelect > > v6_ApplicableDates, ::Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Value v7_TimeSeriesScheduleType, ::Ifc2x3::IfcTimeSeries v8_TimeSeries) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ApplicableDates) {set_attribute_value(5, (*v6_ApplicableDates)->generalize()); }set_attribute_value(6, (EnumerationReference(&::Ifc2x3::IfcTimeSeriesScheduleTypeEnum::Class(),(size_t)v7_TimeSeriesScheduleType)));set_attribute_value(7, (v8_TimeSeries));; populate_derived(); }

// Function implementations for IfcTimeSeriesValue
std::vector< ::Ifc2x3::IfcValue > Ifc2x3::IfcTimeSeriesValue::ListValues() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcValue>(es); }
void Ifc2x3::IfcTimeSeriesValue::setListValues(const std::vector< ::Ifc2x3::IfcValue >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcTimeSeriesValue::declaration() const { return *((IfcParse::entity*)IFC2X3_types[913]); }
const IfcParse::entity& Ifc2x3::IfcTimeSeriesValue::Class() { return *((IfcParse::entity*)IFC2X3_types[913]); }
// Ifc2x3::IfcTimeSeriesValue::IfcTimeSeriesValue(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcTimeSeriesValue::IfcTimeSeriesValue(std::vector< ::Ifc2x3::IfcValue > v1_ListValues) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_ListValues)->generalize());; populate_derived(); }

// Function implementations for IfcTopologicalRepresentationItem


// const IfcParse::entity& Ifc2x3::IfcTopologicalRepresentationItem::declaration() const { return *((IfcParse::entity*)IFC2X3_types[915]); }
const IfcParse::entity& Ifc2x3::IfcTopologicalRepresentationItem::Class() { return *((IfcParse::entity*)IFC2X3_types[915]); }
// Ifc2x3::IfcTopologicalRepresentationItem::IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>& e) : IfcRepresentationItem(e) { }
// Ifc2x3::IfcTopologicalRepresentationItem::IfcTopologicalRepresentationItem() : IfcRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcTopologyRepresentation


// const IfcParse::entity& Ifc2x3::IfcTopologyRepresentation::declaration() const { return *((IfcParse::entity*)IFC2X3_types[916]); }
const IfcParse::entity& Ifc2x3::IfcTopologyRepresentation::Class() { return *((IfcParse::entity*)IFC2X3_types[916]); }
// Ifc2x3::IfcTopologyRepresentation::IfcTopologyRepresentation(const std::weak_ptr<InstanceData>& e) : IfcShapeModel(e) { }
// Ifc2x3::IfcTopologyRepresentation::IfcTopologyRepresentation(::Ifc2x3::IfcRepresentationContext v1_ContextOfItems, std::optional< std::string > v2_RepresentationIdentifier, std::optional< std::string > v3_RepresentationType, std::vector< ::Ifc2x3::IfcRepresentationItem > v4_Items) : IfcShapeModel(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(4))) { set_attribute_value(0, (v1_ContextOfItems)); if (v2_RepresentationIdentifier) {set_attribute_value(1, (*v2_RepresentationIdentifier)); } if (v3_RepresentationType) {set_attribute_value(2, (*v3_RepresentationType)); }set_attribute_value(3, (v4_Items)->generalize());; populate_derived(); }

// Function implementations for IfcTransformerType
::Ifc2x3::IfcTransformerTypeEnum::Value Ifc2x3::IfcTransformerType::PredefinedType() const {  return ::Ifc2x3::IfcTransformerTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcTransformerType::setPredefinedType(const ::Ifc2x3::IfcTransformerTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcTransformerTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcTransformerType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[918]); }
const IfcParse::entity& Ifc2x3::IfcTransformerType::Class() { return *((IfcParse::entity*)IFC2X3_types[918]); }
// Ifc2x3::IfcTransformerType::IfcTransformerType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcTransformerType::IfcTransformerType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcTransformerTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcTransformerTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcTransportElement
std::optional< ::Ifc2x3::IfcTransportElementTypeEnum::Value > Ifc2x3::IfcTransportElement::OperationType() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcTransportElementTypeEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcTransportElement::setOperationType(const std::optional< ::Ifc2x3::IfcTransportElementTypeEnum::Value >& v) { if (v) {set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcTransportElementTypeEnum::Class(), (size_t) *v));} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcTransportElement::CapacityByWeight() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcTransportElement::setCapacityByWeight(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcTransportElement::CapacityByNumber() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcTransportElement::setCapacityByNumber(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }


// const IfcParse::entity& Ifc2x3::IfcTransportElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[921]); }
const IfcParse::entity& Ifc2x3::IfcTransportElement::Class() { return *((IfcParse::entity*)IFC2X3_types[921]); }
// Ifc2x3::IfcTransportElement::IfcTransportElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcTransportElement::IfcTransportElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< ::Ifc2x3::IfcTransportElementTypeEnum::Value > v9_OperationType, std::optional< double > v10_CapacityByWeight, std::optional< double > v11_CapacityByNumber) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_OperationType) {set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcTransportElementTypeEnum::Class(),(size_t)*v9_OperationType))); } if (v10_CapacityByWeight) {set_attribute_value(9, (*v10_CapacityByWeight)); } if (v11_CapacityByNumber) {set_attribute_value(10, (*v11_CapacityByNumber)); }; populate_derived(); }

// Function implementations for IfcTransportElementType
::Ifc2x3::IfcTransportElementTypeEnum::Value Ifc2x3::IfcTransportElementType::PredefinedType() const {  return ::Ifc2x3::IfcTransportElementTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcTransportElementType::setPredefinedType(const ::Ifc2x3::IfcTransportElementTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcTransportElementTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcTransportElementType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[922]); }
const IfcParse::entity& Ifc2x3::IfcTransportElementType::Class() { return *((IfcParse::entity*)IFC2X3_types[922]); }
// Ifc2x3::IfcTransportElementType::IfcTransportElementType(const std::weak_ptr<InstanceData>& e) : IfcElementType(e) { }
// Ifc2x3::IfcTransportElementType::IfcTransportElementType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcTransportElementTypeEnum::Value v10_PredefinedType) : IfcElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcTransportElementTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcTrapeziumProfileDef
double Ifc2x3::IfcTrapeziumProfileDef::BottomXDim() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcTrapeziumProfileDef::setBottomXDim(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcTrapeziumProfileDef::TopXDim() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcTrapeziumProfileDef::setTopXDim(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcTrapeziumProfileDef::YDim() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcTrapeziumProfileDef::setYDim(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcTrapeziumProfileDef::TopXOffset() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcTrapeziumProfileDef::setTopXOffset(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }


// const IfcParse::entity& Ifc2x3::IfcTrapeziumProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[924]); }
const IfcParse::entity& Ifc2x3::IfcTrapeziumProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[924]); }
// Ifc2x3::IfcTrapeziumProfileDef::IfcTrapeziumProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcTrapeziumProfileDef::IfcTrapeziumProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_BottomXDim, double v5_TopXDim, double v6_YDim, double v7_TopXOffset) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(7))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_BottomXDim));set_attribute_value(4, (v5_TopXDim));set_attribute_value(5, (v6_YDim));set_attribute_value(6, (v7_TopXOffset));; populate_derived(); }

// Function implementations for IfcTrimmedCurve
::Ifc2x3::IfcCurve Ifc2x3::IfcTrimmedCurve::BasisCurve() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcCurve>(); }
void Ifc2x3::IfcTrimmedCurve::setBasisCurve(const ::Ifc2x3::IfcCurve& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcTrimmingSelect > Ifc2x3::IfcTrimmedCurve::Trim1() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcTrimmingSelect>(es); }
void Ifc2x3::IfcTrimmedCurve::setTrim1(const std::vector< ::Ifc2x3::IfcTrimmingSelect >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }
std::vector< ::Ifc2x3::IfcTrimmingSelect > Ifc2x3::IfcTrimmedCurve::Trim2() const {  std::vector<express::Base> es = get_attribute_value(2); return cast_vector<::Ifc2x3::IfcTrimmingSelect>(es); }
void Ifc2x3::IfcTrimmedCurve::setTrim2(const std::vector< ::Ifc2x3::IfcTrimmingSelect >& v) { set_attribute_value(2, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(2); }
bool Ifc2x3::IfcTrimmedCurve::SenseAgreement() const {  bool v = get_attribute_value(3); return v; }
void Ifc2x3::IfcTrimmedCurve::setSenseAgreement(const bool& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
::Ifc2x3::IfcTrimmingPreference::Value Ifc2x3::IfcTrimmedCurve::MasterRepresentation() const {  return ::Ifc2x3::IfcTrimmingPreference::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcTrimmedCurve::setMasterRepresentation(const ::Ifc2x3::IfcTrimmingPreference::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcTrimmingPreference::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }


// const IfcParse::entity& Ifc2x3::IfcTrimmedCurve::declaration() const { return *((IfcParse::entity*)IFC2X3_types[925]); }
const IfcParse::entity& Ifc2x3::IfcTrimmedCurve::Class() { return *((IfcParse::entity*)IFC2X3_types[925]); }
// Ifc2x3::IfcTrimmedCurve::IfcTrimmedCurve(const std::weak_ptr<InstanceData>& e) : IfcBoundedCurve(e) { }
// Ifc2x3::IfcTrimmedCurve::IfcTrimmedCurve(::Ifc2x3::IfcCurve v1_BasisCurve, std::vector< ::Ifc2x3::IfcTrimmingSelect > v2_Trim1, std::vector< ::Ifc2x3::IfcTrimmingSelect > v3_Trim2, bool v4_SenseAgreement, ::Ifc2x3::IfcTrimmingPreference::Value v5_MasterRepresentation) : IfcBoundedCurve(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_BasisCurve));set_attribute_value(1, (v2_Trim1)->generalize());set_attribute_value(2, (v3_Trim2)->generalize());set_attribute_value(3, (v4_SenseAgreement));set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcTrimmingPreference::Class(),(size_t)v5_MasterRepresentation)));; populate_derived(); }

// Function implementations for IfcTubeBundleType
::Ifc2x3::IfcTubeBundleTypeEnum::Value Ifc2x3::IfcTubeBundleType::PredefinedType() const {  return ::Ifc2x3::IfcTubeBundleTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcTubeBundleType::setPredefinedType(const ::Ifc2x3::IfcTubeBundleTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcTubeBundleTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcTubeBundleType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[929]); }
const IfcParse::entity& Ifc2x3::IfcTubeBundleType::Class() { return *((IfcParse::entity*)IFC2X3_types[929]); }
// Ifc2x3::IfcTubeBundleType::IfcTubeBundleType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcTubeBundleType::IfcTubeBundleType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcTubeBundleTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcTubeBundleTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcTwoDirectionRepeatFactor
::Ifc2x3::IfcVector Ifc2x3::IfcTwoDirectionRepeatFactor::SecondRepeatFactor() const {  return ((express::Base)(get_attribute_value(1))).as<::Ifc2x3::IfcVector>(); }
void Ifc2x3::IfcTwoDirectionRepeatFactor::setSecondRepeatFactor(const ::Ifc2x3::IfcVector& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcTwoDirectionRepeatFactor::declaration() const { return *((IfcParse::entity*)IFC2X3_types[931]); }
const IfcParse::entity& Ifc2x3::IfcTwoDirectionRepeatFactor::Class() { return *((IfcParse::entity*)IFC2X3_types[931]); }
// Ifc2x3::IfcTwoDirectionRepeatFactor::IfcTwoDirectionRepeatFactor(const std::weak_ptr<InstanceData>& e) : IfcOneDirectionRepeatFactor(e) { }
// Ifc2x3::IfcTwoDirectionRepeatFactor::IfcTwoDirectionRepeatFactor(::Ifc2x3::IfcVector v1_RepeatFactor, ::Ifc2x3::IfcVector v2_SecondRepeatFactor) : IfcOneDirectionRepeatFactor(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_RepeatFactor));set_attribute_value(1, (v2_SecondRepeatFactor));; populate_derived(); }

// Function implementations for IfcTypeObject
std::optional< std::string > Ifc2x3::IfcTypeObject::ApplicableOccurrence() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } std::string v = get_attribute_value(4); return v; }
void Ifc2x3::IfcTypeObject::setApplicableOccurrence(const std::optional< std::string >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > Ifc2x3::IfcTypeObject::HasPropertySets() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(5); return cast_vector<::Ifc2x3::IfcPropertySetDefinition>(es); }
void Ifc2x3::IfcTypeObject::setHasPropertySets(const std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > >& v) { if (v) {set_attribute_value(5, cast_vector<express::Base>(*v));} else {unset_attribute_value(5);} }

std::vector<::Ifc2x3::IfcRelDefinesByType> Ifc2x3::IfcTypeObject::ObjectTypeOf() const { return cast_vector<IfcRelDefinesByType>(file()->getInverse(data()->id(), IFC2X3_types[704], 5)); }

// const IfcParse::entity& Ifc2x3::IfcTypeObject::declaration() const { return *((IfcParse::entity*)IFC2X3_types[932]); }
const IfcParse::entity& Ifc2x3::IfcTypeObject::Class() { return *((IfcParse::entity*)IFC2X3_types[932]); }
// Ifc2x3::IfcTypeObject::IfcTypeObject(const std::weak_ptr<InstanceData>& e) : IfcObjectDefinition(e) { }
// Ifc2x3::IfcTypeObject::IfcTypeObject(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets) : IfcObjectDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(6))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); }; populate_derived(); }

// Function implementations for IfcTypeProduct
std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > Ifc2x3::IfcTypeProduct::RepresentationMaps() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(6); return cast_vector<::Ifc2x3::IfcRepresentationMap>(es); }
void Ifc2x3::IfcTypeProduct::setRepresentationMaps(const std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > >& v) { if (v) {set_attribute_value(6, cast_vector<express::Base>(*v));} else {unset_attribute_value(6);} }
std::optional< std::string > Ifc2x3::IfcTypeProduct::Tag() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::string v = get_attribute_value(7); return v; }
void Ifc2x3::IfcTypeProduct::setTag(const std::optional< std::string >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcTypeProduct::declaration() const { return *((IfcParse::entity*)IFC2X3_types[933]); }
const IfcParse::entity& Ifc2x3::IfcTypeProduct::Class() { return *((IfcParse::entity*)IFC2X3_types[933]); }
// Ifc2x3::IfcTypeProduct::IfcTypeProduct(const std::weak_ptr<InstanceData>& e) : IfcTypeObject(e) { }
// Ifc2x3::IfcTypeProduct::IfcTypeProduct(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag) : IfcTypeObject(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcUShapeProfileDef
double Ifc2x3::IfcUShapeProfileDef::Depth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcUShapeProfileDef::setDepth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcUShapeProfileDef::FlangeWidth() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcUShapeProfileDef::setFlangeWidth(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcUShapeProfileDef::WebThickness() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcUShapeProfileDef::setWebThickness(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcUShapeProfileDef::FlangeThickness() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcUShapeProfileDef::setFlangeThickness(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< double > Ifc2x3::IfcUShapeProfileDef::FilletRadius() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcUShapeProfileDef::setFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcUShapeProfileDef::EdgeRadius() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcUShapeProfileDef::setEdgeRadius(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcUShapeProfileDef::FlangeSlope() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcUShapeProfileDef::setFlangeSlope(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcUShapeProfileDef::CentreOfGravityInX() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcUShapeProfileDef::setCentreOfGravityInX(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }


// const IfcParse::entity& Ifc2x3::IfcUShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[939]); }
const IfcParse::entity& Ifc2x3::IfcUShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[939]); }
// Ifc2x3::IfcUShapeProfileDef::IfcUShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcUShapeProfileDef::IfcUShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_Depth, double v5_FlangeWidth, double v6_WebThickness, double v7_FlangeThickness, std::optional< double > v8_FilletRadius, std::optional< double > v9_EdgeRadius, std::optional< double > v10_FlangeSlope, std::optional< double > v11_CentreOfGravityInX) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(11))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_Depth));set_attribute_value(4, (v5_FlangeWidth));set_attribute_value(5, (v6_WebThickness));set_attribute_value(6, (v7_FlangeThickness)); if (v8_FilletRadius) {set_attribute_value(7, (*v8_FilletRadius)); } if (v9_EdgeRadius) {set_attribute_value(8, (*v9_EdgeRadius)); } if (v10_FlangeSlope) {set_attribute_value(9, (*v10_FlangeSlope)); } if (v11_CentreOfGravityInX) {set_attribute_value(10, (*v11_CentreOfGravityInX)); }; populate_derived(); }

// Function implementations for IfcUnitAssignment
std::vector< ::Ifc2x3::IfcUnit > Ifc2x3::IfcUnitAssignment::Units() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcUnit>(es); }
void Ifc2x3::IfcUnitAssignment::setUnits(const std::vector< ::Ifc2x3::IfcUnit >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcUnitAssignment::declaration() const { return *((IfcParse::entity*)IFC2X3_types[937]); }
const IfcParse::entity& Ifc2x3::IfcUnitAssignment::Class() { return *((IfcParse::entity*)IFC2X3_types[937]); }
// Ifc2x3::IfcUnitAssignment::IfcUnitAssignment(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcUnitAssignment::IfcUnitAssignment(std::vector< ::Ifc2x3::IfcUnit > v1_Units) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_Units)->generalize());; populate_derived(); }

// Function implementations for IfcUnitaryEquipmentType
::Ifc2x3::IfcUnitaryEquipmentTypeEnum::Value Ifc2x3::IfcUnitaryEquipmentType::PredefinedType() const {  return ::Ifc2x3::IfcUnitaryEquipmentTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcUnitaryEquipmentType::setPredefinedType(const ::Ifc2x3::IfcUnitaryEquipmentTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcUnitaryEquipmentTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcUnitaryEquipmentType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[935]); }
const IfcParse::entity& Ifc2x3::IfcUnitaryEquipmentType::Class() { return *((IfcParse::entity*)IFC2X3_types[935]); }
// Ifc2x3::IfcUnitaryEquipmentType::IfcUnitaryEquipmentType(const std::weak_ptr<InstanceData>& e) : IfcEnergyConversionDeviceType(e) { }
// Ifc2x3::IfcUnitaryEquipmentType::IfcUnitaryEquipmentType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcUnitaryEquipmentTypeEnum::Value v10_PredefinedType) : IfcEnergyConversionDeviceType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcUnitaryEquipmentTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcValveType
::Ifc2x3::IfcValveTypeEnum::Value Ifc2x3::IfcValveType::PredefinedType() const {  return ::Ifc2x3::IfcValveTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcValveType::setPredefinedType(const ::Ifc2x3::IfcValveTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcValveTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcValveType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[941]); }
const IfcParse::entity& Ifc2x3::IfcValveType::Class() { return *((IfcParse::entity*)IFC2X3_types[941]); }
// Ifc2x3::IfcValveType::IfcValveType(const std::weak_ptr<InstanceData>& e) : IfcFlowControllerType(e) { }
// Ifc2x3::IfcValveType::IfcValveType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcValveTypeEnum::Value v10_PredefinedType) : IfcFlowControllerType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcValveTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcVector
::Ifc2x3::IfcDirection Ifc2x3::IfcVector::Orientation() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcDirection>(); }
void Ifc2x3::IfcVector::setOrientation(const ::Ifc2x3::IfcDirection& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }
double Ifc2x3::IfcVector::Magnitude() const {  double v = get_attribute_value(1); return v; }
void Ifc2x3::IfcVector::setMagnitude(const double& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcVector::declaration() const { return *((IfcParse::entity*)IFC2X3_types[944]); }
const IfcParse::entity& Ifc2x3::IfcVector::Class() { return *((IfcParse::entity*)IFC2X3_types[944]); }
// Ifc2x3::IfcVector::IfcVector(const std::weak_ptr<InstanceData>& e) : IfcGeometricRepresentationItem(e) { }
// Ifc2x3::IfcVector::IfcVector(::Ifc2x3::IfcDirection v1_Orientation, double v2_Magnitude) : IfcGeometricRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_Orientation));set_attribute_value(1, (v2_Magnitude));; populate_derived(); }

// Function implementations for IfcVertex


// const IfcParse::entity& Ifc2x3::IfcVertex::declaration() const { return *((IfcParse::entity*)IFC2X3_types[946]); }
const IfcParse::entity& Ifc2x3::IfcVertex::Class() { return *((IfcParse::entity*)IFC2X3_types[946]); }
// Ifc2x3::IfcVertex::IfcVertex(const std::weak_ptr<InstanceData>& e) : IfcTopologicalRepresentationItem(e) { }
// Ifc2x3::IfcVertex::IfcVertex() : IfcTopologicalRepresentationItem(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(0))) { ; populate_derived(); }

// Function implementations for IfcVertexBasedTextureMap
std::vector< ::Ifc2x3::IfcTextureVertex > Ifc2x3::IfcVertexBasedTextureMap::TextureVertices() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcTextureVertex>(es); }
void Ifc2x3::IfcVertexBasedTextureMap::setTextureVertices(const std::vector< ::Ifc2x3::IfcTextureVertex >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
std::vector< ::Ifc2x3::IfcCartesianPoint > Ifc2x3::IfcVertexBasedTextureMap::TexturePoints() const {  std::vector<express::Base> es = get_attribute_value(1); return cast_vector<::Ifc2x3::IfcCartesianPoint>(es); }
void Ifc2x3::IfcVertexBasedTextureMap::setTexturePoints(const std::vector< ::Ifc2x3::IfcCartesianPoint >& v) { set_attribute_value(1, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcVertexBasedTextureMap::declaration() const { return *((IfcParse::entity*)IFC2X3_types[947]); }
const IfcParse::entity& Ifc2x3::IfcVertexBasedTextureMap::Class() { return *((IfcParse::entity*)IFC2X3_types[947]); }
// Ifc2x3::IfcVertexBasedTextureMap::IfcVertexBasedTextureMap(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcVertexBasedTextureMap::IfcVertexBasedTextureMap(std::vector< ::Ifc2x3::IfcTextureVertex > v1_TextureVertices, std::vector< ::Ifc2x3::IfcCartesianPoint > v2_TexturePoints) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_TextureVertices)->generalize());set_attribute_value(1, (v2_TexturePoints)->generalize());; populate_derived(); }

// Function implementations for IfcVertexLoop
::Ifc2x3::IfcVertex Ifc2x3::IfcVertexLoop::LoopVertex() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcVertex>(); }
void Ifc2x3::IfcVertexLoop::setLoopVertex(const ::Ifc2x3::IfcVertex& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcVertexLoop::declaration() const { return *((IfcParse::entity*)IFC2X3_types[948]); }
const IfcParse::entity& Ifc2x3::IfcVertexLoop::Class() { return *((IfcParse::entity*)IFC2X3_types[948]); }
// Ifc2x3::IfcVertexLoop::IfcVertexLoop(const std::weak_ptr<InstanceData>& e) : IfcLoop(e) { }
// Ifc2x3::IfcVertexLoop::IfcVertexLoop(::Ifc2x3::IfcVertex v1_LoopVertex) : IfcLoop(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_LoopVertex));; populate_derived(); }

// Function implementations for IfcVertexPoint
::Ifc2x3::IfcPoint Ifc2x3::IfcVertexPoint::VertexGeometry() const {  return ((express::Base)(get_attribute_value(0))).as<::Ifc2x3::IfcPoint>(); }
void Ifc2x3::IfcVertexPoint::setVertexGeometry(const ::Ifc2x3::IfcPoint& v) { set_attribute_value(0, v);if constexpr (false)unset_attribute_value(0); }


// const IfcParse::entity& Ifc2x3::IfcVertexPoint::declaration() const { return *((IfcParse::entity*)IFC2X3_types[949]); }
const IfcParse::entity& Ifc2x3::IfcVertexPoint::Class() { return *((IfcParse::entity*)IFC2X3_types[949]); }
// Ifc2x3::IfcVertexPoint::IfcVertexPoint(const std::weak_ptr<InstanceData>& e) : IfcVertex(e) { }
// Ifc2x3::IfcVertexPoint::IfcVertexPoint(::Ifc2x3::IfcPoint v1_VertexGeometry) : IfcVertex(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(1))) { set_attribute_value(0, (v1_VertexGeometry));; populate_derived(); }

// Function implementations for IfcVibrationIsolatorType
::Ifc2x3::IfcVibrationIsolatorTypeEnum::Value Ifc2x3::IfcVibrationIsolatorType::PredefinedType() const {  return ::Ifc2x3::IfcVibrationIsolatorTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcVibrationIsolatorType::setPredefinedType(const ::Ifc2x3::IfcVibrationIsolatorTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcVibrationIsolatorTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcVibrationIsolatorType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[950]); }
const IfcParse::entity& Ifc2x3::IfcVibrationIsolatorType::Class() { return *((IfcParse::entity*)IFC2X3_types[950]); }
// Ifc2x3::IfcVibrationIsolatorType::IfcVibrationIsolatorType(const std::weak_ptr<InstanceData>& e) : IfcDiscreteAccessoryType(e) { }
// Ifc2x3::IfcVibrationIsolatorType::IfcVibrationIsolatorType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcVibrationIsolatorTypeEnum::Value v10_PredefinedType) : IfcDiscreteAccessoryType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcVibrationIsolatorTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcVirtualElement


// const IfcParse::entity& Ifc2x3::IfcVirtualElement::declaration() const { return *((IfcParse::entity*)IFC2X3_types[952]); }
const IfcParse::entity& Ifc2x3::IfcVirtualElement::Class() { return *((IfcParse::entity*)IFC2X3_types[952]); }
// Ifc2x3::IfcVirtualElement::IfcVirtualElement(const std::weak_ptr<InstanceData>& e) : IfcElement(e) { }
// Ifc2x3::IfcVirtualElement::IfcVirtualElement(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcVirtualGridIntersection
std::vector< ::Ifc2x3::IfcGridAxis > Ifc2x3::IfcVirtualGridIntersection::IntersectingAxes() const {  std::vector<express::Base> es = get_attribute_value(0); return cast_vector<::Ifc2x3::IfcGridAxis>(es); }
void Ifc2x3::IfcVirtualGridIntersection::setIntersectingAxes(const std::vector< ::Ifc2x3::IfcGridAxis >& v) { set_attribute_value(0, cast_vector<express::Base>(v));if constexpr (false)unset_attribute_value(0); }
std::vector< double > /*[2:3]*/ Ifc2x3::IfcVirtualGridIntersection::OffsetDistances() const {  std::vector< double > /*[2:3]*/ v = get_attribute_value(1); return v; }
void Ifc2x3::IfcVirtualGridIntersection::setOffsetDistances(const std::vector< double > /*[2:3]*/& v) { set_attribute_value(1, v);if constexpr (false)unset_attribute_value(1); }


// const IfcParse::entity& Ifc2x3::IfcVirtualGridIntersection::declaration() const { return *((IfcParse::entity*)IFC2X3_types[953]); }
const IfcParse::entity& Ifc2x3::IfcVirtualGridIntersection::Class() { return *((IfcParse::entity*)IFC2X3_types[953]); }
// Ifc2x3::IfcVirtualGridIntersection::IfcVirtualGridIntersection(const std::weak_ptr<InstanceData>& e) : express::Entity(e) { }
// Ifc2x3::IfcVirtualGridIntersection::IfcVirtualGridIntersection(std::vector< ::Ifc2x3::IfcGridAxis > v1_IntersectingAxes, std::vector< double > /*[2:3]*/ v2_OffsetDistances) : express::Entity(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(2))) { set_attribute_value(0, (v1_IntersectingAxes)->generalize());set_attribute_value(1, (v2_OffsetDistances));; populate_derived(); }

// Function implementations for IfcWall


// const IfcParse::entity& Ifc2x3::IfcWall::declaration() const { return *((IfcParse::entity*)IFC2X3_types[956]); }
const IfcParse::entity& Ifc2x3::IfcWall::Class() { return *((IfcParse::entity*)IFC2X3_types[956]); }
// Ifc2x3::IfcWall::IfcWall(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcWall::IfcWall(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcWallStandardCase


// const IfcParse::entity& Ifc2x3::IfcWallStandardCase::declaration() const { return *((IfcParse::entity*)IFC2X3_types[957]); }
const IfcParse::entity& Ifc2x3::IfcWallStandardCase::Class() { return *((IfcParse::entity*)IFC2X3_types[957]); }
// Ifc2x3::IfcWallStandardCase::IfcWallStandardCase(const std::weak_ptr<InstanceData>& e) : IfcWall(e) { }
// Ifc2x3::IfcWallStandardCase::IfcWallStandardCase(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag) : IfcWall(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }; populate_derived(); }

// Function implementations for IfcWallType
::Ifc2x3::IfcWallTypeEnum::Value Ifc2x3::IfcWallType::PredefinedType() const {  return ::Ifc2x3::IfcWallTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcWallType::setPredefinedType(const ::Ifc2x3::IfcWallTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcWallTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcWallType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[958]); }
const IfcParse::entity& Ifc2x3::IfcWallType::Class() { return *((IfcParse::entity*)IFC2X3_types[958]); }
// Ifc2x3::IfcWallType::IfcWallType(const std::weak_ptr<InstanceData>& e) : IfcBuildingElementType(e) { }
// Ifc2x3::IfcWallType::IfcWallType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcWallTypeEnum::Value v10_PredefinedType) : IfcBuildingElementType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcWallTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcWasteTerminalType
::Ifc2x3::IfcWasteTerminalTypeEnum::Value Ifc2x3::IfcWasteTerminalType::PredefinedType() const {  return ::Ifc2x3::IfcWasteTerminalTypeEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcWasteTerminalType::setPredefinedType(const ::Ifc2x3::IfcWasteTerminalTypeEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcWasteTerminalTypeEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }


// const IfcParse::entity& Ifc2x3::IfcWasteTerminalType::declaration() const { return *((IfcParse::entity*)IFC2X3_types[962]); }
const IfcParse::entity& Ifc2x3::IfcWasteTerminalType::Class() { return *((IfcParse::entity*)IFC2X3_types[962]); }
// Ifc2x3::IfcWasteTerminalType::IfcWasteTerminalType(const std::weak_ptr<InstanceData>& e) : IfcFlowTerminalType(e) { }
// Ifc2x3::IfcWasteTerminalType::IfcWasteTerminalType(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, std::optional< std::string > v9_ElementType, ::Ifc2x3::IfcWasteTerminalTypeEnum::Value v10_PredefinedType) : IfcFlowTerminalType(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_ElementType) {set_attribute_value(8, (*v9_ElementType)); }set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcWasteTerminalTypeEnum::Class(),(size_t)v10_PredefinedType)));; populate_derived(); }

// Function implementations for IfcWaterProperties
std::optional< bool > Ifc2x3::IfcWaterProperties::IsPotable() const { if(get_attribute_value(1).isNull()) { return std::nullopt; } bool v = get_attribute_value(1); return v; }
void Ifc2x3::IfcWaterProperties::setIsPotable(const std::optional< bool >& v) { if (v) {set_attribute_value(1, *v);} else {unset_attribute_value(1);} }
std::optional< double > Ifc2x3::IfcWaterProperties::Hardness() const { if(get_attribute_value(2).isNull()) { return std::nullopt; } double v = get_attribute_value(2); return v; }
void Ifc2x3::IfcWaterProperties::setHardness(const std::optional< double >& v) { if (v) {set_attribute_value(2, *v);} else {unset_attribute_value(2);} }
std::optional< double > Ifc2x3::IfcWaterProperties::AlkalinityConcentration() const { if(get_attribute_value(3).isNull()) { return std::nullopt; } double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcWaterProperties::setAlkalinityConcentration(const std::optional< double >& v) { if (v) {set_attribute_value(3, *v);} else {unset_attribute_value(3);} }
std::optional< double > Ifc2x3::IfcWaterProperties::AcidityConcentration() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcWaterProperties::setAcidityConcentration(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcWaterProperties::ImpuritiesContent() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcWaterProperties::setImpuritiesContent(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcWaterProperties::PHLevel() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcWaterProperties::setPHLevel(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcWaterProperties::DissolvedSolidsContent() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcWaterProperties::setDissolvedSolidsContent(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }


// const IfcParse::entity& Ifc2x3::IfcWaterProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[964]); }
const IfcParse::entity& Ifc2x3::IfcWaterProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[964]); }
// Ifc2x3::IfcWaterProperties::IfcWaterProperties(const std::weak_ptr<InstanceData>& e) : IfcMaterialProperties(e) { }
// Ifc2x3::IfcWaterProperties::IfcWaterProperties(::Ifc2x3::IfcMaterial v1_Material, std::optional< bool > v2_IsPotable, std::optional< double > v3_Hardness, std::optional< double > v4_AlkalinityConcentration, std::optional< double > v5_AcidityConcentration, std::optional< double > v6_ImpuritiesContent, std::optional< double > v7_PHLevel, std::optional< double > v8_DissolvedSolidsContent) : IfcMaterialProperties(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(8))) { set_attribute_value(0, (v1_Material)); if (v2_IsPotable) {set_attribute_value(1, (*v2_IsPotable)); } if (v3_Hardness) {set_attribute_value(2, (*v3_Hardness)); } if (v4_AlkalinityConcentration) {set_attribute_value(3, (*v4_AlkalinityConcentration)); } if (v5_AcidityConcentration) {set_attribute_value(4, (*v5_AcidityConcentration)); } if (v6_ImpuritiesContent) {set_attribute_value(5, (*v6_ImpuritiesContent)); } if (v7_PHLevel) {set_attribute_value(6, (*v7_PHLevel)); } if (v8_DissolvedSolidsContent) {set_attribute_value(7, (*v8_DissolvedSolidsContent)); }; populate_derived(); }

// Function implementations for IfcWindow
std::optional< double > Ifc2x3::IfcWindow::OverallHeight() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcWindow::setOverallHeight(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcWindow::OverallWidth() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcWindow::setOverallWidth(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }


// const IfcParse::entity& Ifc2x3::IfcWindow::declaration() const { return *((IfcParse::entity*)IFC2X3_types[965]); }
const IfcParse::entity& Ifc2x3::IfcWindow::Class() { return *((IfcParse::entity*)IFC2X3_types[965]); }
// Ifc2x3::IfcWindow::IfcWindow(const std::weak_ptr<InstanceData>& e) : IfcBuildingElement(e) { }
// Ifc2x3::IfcWindow::IfcWindow(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, ::Ifc2x3::IfcObjectPlacement v6_ObjectPlacement, ::Ifc2x3::IfcProductRepresentation v7_Representation, std::optional< std::string > v8_Tag, std::optional< double > v9_OverallHeight, std::optional< double > v10_OverallWidth) : IfcBuildingElement(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(10))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); } if (v6_ObjectPlacement) {set_attribute_value(5, (*v6_ObjectPlacement)); } if (v7_Representation) {set_attribute_value(6, (*v7_Representation)); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); } if (v9_OverallHeight) {set_attribute_value(8, (*v9_OverallHeight)); } if (v10_OverallWidth) {set_attribute_value(9, (*v10_OverallWidth)); }; populate_derived(); }

// Function implementations for IfcWindowLiningProperties
std::optional< double > Ifc2x3::IfcWindowLiningProperties::LiningDepth() const { if(get_attribute_value(4).isNull()) { return std::nullopt; } double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcWindowLiningProperties::setLiningDepth(const std::optional< double >& v) { if (v) {set_attribute_value(4, *v);} else {unset_attribute_value(4);} }
std::optional< double > Ifc2x3::IfcWindowLiningProperties::LiningThickness() const { if(get_attribute_value(5).isNull()) { return std::nullopt; } double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcWindowLiningProperties::setLiningThickness(const std::optional< double >& v) { if (v) {set_attribute_value(5, *v);} else {unset_attribute_value(5);} }
std::optional< double > Ifc2x3::IfcWindowLiningProperties::TransomThickness() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcWindowLiningProperties::setTransomThickness(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcWindowLiningProperties::MullionThickness() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcWindowLiningProperties::setMullionThickness(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcWindowLiningProperties::FirstTransomOffset() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcWindowLiningProperties::setFirstTransomOffset(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcWindowLiningProperties::SecondTransomOffset() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcWindowLiningProperties::setSecondTransomOffset(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcWindowLiningProperties::FirstMullionOffset() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcWindowLiningProperties::setFirstMullionOffset(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
std::optional< double > Ifc2x3::IfcWindowLiningProperties::SecondMullionOffset() const { if(get_attribute_value(11).isNull()) { return std::nullopt; } double v = get_attribute_value(11); return v; }
void Ifc2x3::IfcWindowLiningProperties::setSecondMullionOffset(const std::optional< double >& v) { if (v) {set_attribute_value(11, *v);} else {unset_attribute_value(11);} }
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcWindowLiningProperties::ShapeAspectStyle() const { if(get_attribute_value(12).isNull()) { return ::Ifc2x3::IfcShapeAspect{}; } return ((express::Base)(get_attribute_value(12))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcWindowLiningProperties::setShapeAspectStyle(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }


// const IfcParse::entity& Ifc2x3::IfcWindowLiningProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[966]); }
const IfcParse::entity& Ifc2x3::IfcWindowLiningProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[966]); }
// Ifc2x3::IfcWindowLiningProperties::IfcWindowLiningProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcWindowLiningProperties::IfcWindowLiningProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< double > v5_LiningDepth, std::optional< double > v6_LiningThickness, std::optional< double > v7_TransomThickness, std::optional< double > v8_MullionThickness, std::optional< double > v9_FirstTransomOffset, std::optional< double > v10_SecondTransomOffset, std::optional< double > v11_FirstMullionOffset, std::optional< double > v12_SecondMullionOffset, ::Ifc2x3::IfcShapeAspect v13_ShapeAspectStyle) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(13))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_LiningDepth) {set_attribute_value(4, (*v5_LiningDepth)); } if (v6_LiningThickness) {set_attribute_value(5, (*v6_LiningThickness)); } if (v7_TransomThickness) {set_attribute_value(6, (*v7_TransomThickness)); } if (v8_MullionThickness) {set_attribute_value(7, (*v8_MullionThickness)); } if (v9_FirstTransomOffset) {set_attribute_value(8, (*v9_FirstTransomOffset)); } if (v10_SecondTransomOffset) {set_attribute_value(9, (*v10_SecondTransomOffset)); } if (v11_FirstMullionOffset) {set_attribute_value(10, (*v11_FirstMullionOffset)); } if (v12_SecondMullionOffset) {set_attribute_value(11, (*v12_SecondMullionOffset)); } if (v13_ShapeAspectStyle) {set_attribute_value(12, (*v13_ShapeAspectStyle)); }; populate_derived(); }

// Function implementations for IfcWindowPanelProperties
::Ifc2x3::IfcWindowPanelOperationEnum::Value Ifc2x3::IfcWindowPanelProperties::OperationType() const {  return ::Ifc2x3::IfcWindowPanelOperationEnum::FromString(get_attribute_value(4)); }
void Ifc2x3::IfcWindowPanelProperties::setOperationType(const ::Ifc2x3::IfcWindowPanelOperationEnum::Value& v) { set_attribute_value(4, EnumerationReference(&::Ifc2x3::IfcWindowPanelOperationEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(4); }
::Ifc2x3::IfcWindowPanelPositionEnum::Value Ifc2x3::IfcWindowPanelProperties::PanelPosition() const {  return ::Ifc2x3::IfcWindowPanelPositionEnum::FromString(get_attribute_value(5)); }
void Ifc2x3::IfcWindowPanelProperties::setPanelPosition(const ::Ifc2x3::IfcWindowPanelPositionEnum::Value& v) { set_attribute_value(5, EnumerationReference(&::Ifc2x3::IfcWindowPanelPositionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(5); }
std::optional< double > Ifc2x3::IfcWindowPanelProperties::FrameDepth() const { if(get_attribute_value(6).isNull()) { return std::nullopt; } double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcWindowPanelProperties::setFrameDepth(const std::optional< double >& v) { if (v) {set_attribute_value(6, *v);} else {unset_attribute_value(6);} }
std::optional< double > Ifc2x3::IfcWindowPanelProperties::FrameThickness() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcWindowPanelProperties::setFrameThickness(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
::Ifc2x3::IfcShapeAspect Ifc2x3::IfcWindowPanelProperties::ShapeAspectStyle() const { if(get_attribute_value(8).isNull()) { return ::Ifc2x3::IfcShapeAspect{}; } return ((express::Base)(get_attribute_value(8))).as<::Ifc2x3::IfcShapeAspect>(); }
void Ifc2x3::IfcWindowPanelProperties::setShapeAspectStyle(const ::Ifc2x3::IfcShapeAspect& v) { set_attribute_value(8, v);if constexpr (false)unset_attribute_value(8); }


// const IfcParse::entity& Ifc2x3::IfcWindowPanelProperties::declaration() const { return *((IfcParse::entity*)IFC2X3_types[969]); }
const IfcParse::entity& Ifc2x3::IfcWindowPanelProperties::Class() { return *((IfcParse::entity*)IFC2X3_types[969]); }
// Ifc2x3::IfcWindowPanelProperties::IfcWindowPanelProperties(const std::weak_ptr<InstanceData>& e) : IfcPropertySetDefinition(e) { }
// Ifc2x3::IfcWindowPanelProperties::IfcWindowPanelProperties(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, ::Ifc2x3::IfcWindowPanelOperationEnum::Value v5_OperationType, ::Ifc2x3::IfcWindowPanelPositionEnum::Value v6_PanelPosition, std::optional< double > v7_FrameDepth, std::optional< double > v8_FrameThickness, ::Ifc2x3::IfcShapeAspect v9_ShapeAspectStyle) : IfcPropertySetDefinition(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); }set_attribute_value(4, (EnumerationReference(&::Ifc2x3::IfcWindowPanelOperationEnum::Class(),(size_t)v5_OperationType)));set_attribute_value(5, (EnumerationReference(&::Ifc2x3::IfcWindowPanelPositionEnum::Class(),(size_t)v6_PanelPosition))); if (v7_FrameDepth) {set_attribute_value(6, (*v7_FrameDepth)); } if (v8_FrameThickness) {set_attribute_value(7, (*v8_FrameThickness)); } if (v9_ShapeAspectStyle) {set_attribute_value(8, (*v9_ShapeAspectStyle)); }; populate_derived(); }

// Function implementations for IfcWindowStyle
::Ifc2x3::IfcWindowStyleConstructionEnum::Value Ifc2x3::IfcWindowStyle::ConstructionType() const {  return ::Ifc2x3::IfcWindowStyleConstructionEnum::FromString(get_attribute_value(8)); }
void Ifc2x3::IfcWindowStyle::setConstructionType(const ::Ifc2x3::IfcWindowStyleConstructionEnum::Value& v) { set_attribute_value(8, EnumerationReference(&::Ifc2x3::IfcWindowStyleConstructionEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(8); }
::Ifc2x3::IfcWindowStyleOperationEnum::Value Ifc2x3::IfcWindowStyle::OperationType() const {  return ::Ifc2x3::IfcWindowStyleOperationEnum::FromString(get_attribute_value(9)); }
void Ifc2x3::IfcWindowStyle::setOperationType(const ::Ifc2x3::IfcWindowStyleOperationEnum::Value& v) { set_attribute_value(9, EnumerationReference(&::Ifc2x3::IfcWindowStyleOperationEnum::Class(), (size_t) v));if constexpr (false)unset_attribute_value(9); }
bool Ifc2x3::IfcWindowStyle::ParameterTakesPrecedence() const {  bool v = get_attribute_value(10); return v; }
void Ifc2x3::IfcWindowStyle::setParameterTakesPrecedence(const bool& v) { set_attribute_value(10, v);if constexpr (false)unset_attribute_value(10); }
bool Ifc2x3::IfcWindowStyle::Sizeable() const {  bool v = get_attribute_value(11); return v; }
void Ifc2x3::IfcWindowStyle::setSizeable(const bool& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }


// const IfcParse::entity& Ifc2x3::IfcWindowStyle::declaration() const { return *((IfcParse::entity*)IFC2X3_types[970]); }
const IfcParse::entity& Ifc2x3::IfcWindowStyle::Class() { return *((IfcParse::entity*)IFC2X3_types[970]); }
// Ifc2x3::IfcWindowStyle::IfcWindowStyle(const std::weak_ptr<InstanceData>& e) : IfcTypeProduct(e) { }
// Ifc2x3::IfcWindowStyle::IfcWindowStyle(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ApplicableOccurrence, std::optional< std::vector< ::Ifc2x3::IfcPropertySetDefinition > > v6_HasPropertySets, std::optional< std::vector< ::Ifc2x3::IfcRepresentationMap > > v7_RepresentationMaps, std::optional< std::string > v8_Tag, ::Ifc2x3::IfcWindowStyleConstructionEnum::Value v9_ConstructionType, ::Ifc2x3::IfcWindowStyleOperationEnum::Value v10_OperationType, bool v11_ParameterTakesPrecedence, bool v12_Sizeable) : IfcTypeProduct(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(12))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ApplicableOccurrence) {set_attribute_value(4, (*v5_ApplicableOccurrence)); } if (v6_HasPropertySets) {set_attribute_value(5, (*v6_HasPropertySets)->generalize()); } if (v7_RepresentationMaps) {set_attribute_value(6, (*v7_RepresentationMaps)->generalize()); } if (v8_Tag) {set_attribute_value(7, (*v8_Tag)); }set_attribute_value(8, (EnumerationReference(&::Ifc2x3::IfcWindowStyleConstructionEnum::Class(),(size_t)v9_ConstructionType)));set_attribute_value(9, (EnumerationReference(&::Ifc2x3::IfcWindowStyleOperationEnum::Class(),(size_t)v10_OperationType)));set_attribute_value(10, (v11_ParameterTakesPrecedence));set_attribute_value(11, (v12_Sizeable));; populate_derived(); }

// Function implementations for IfcWorkControl
std::string Ifc2x3::IfcWorkControl::Identifier() const {  std::string v = get_attribute_value(5); return v; }
void Ifc2x3::IfcWorkControl::setIdentifier(const std::string& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcWorkControl::CreationDate() const {  return ((express::Base)(get_attribute_value(6))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcWorkControl::setCreationDate(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< std::vector< ::Ifc2x3::IfcPerson > > Ifc2x3::IfcWorkControl::Creators() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } std::vector<express::Base> es = get_attribute_value(7); return cast_vector<::Ifc2x3::IfcPerson>(es); }
void Ifc2x3::IfcWorkControl::setCreators(const std::optional< std::vector< ::Ifc2x3::IfcPerson > >& v) { if (v) {set_attribute_value(7, cast_vector<express::Base>(*v));} else {unset_attribute_value(7);} }
std::optional< std::string > Ifc2x3::IfcWorkControl::Purpose() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } std::string v = get_attribute_value(8); return v; }
void Ifc2x3::IfcWorkControl::setPurpose(const std::optional< std::string >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }
std::optional< double > Ifc2x3::IfcWorkControl::Duration() const { if(get_attribute_value(9).isNull()) { return std::nullopt; } double v = get_attribute_value(9); return v; }
void Ifc2x3::IfcWorkControl::setDuration(const std::optional< double >& v) { if (v) {set_attribute_value(9, *v);} else {unset_attribute_value(9);} }
std::optional< double > Ifc2x3::IfcWorkControl::TotalFloat() const { if(get_attribute_value(10).isNull()) { return std::nullopt; } double v = get_attribute_value(10); return v; }
void Ifc2x3::IfcWorkControl::setTotalFloat(const std::optional< double >& v) { if (v) {set_attribute_value(10, *v);} else {unset_attribute_value(10);} }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcWorkControl::StartTime() const {  return ((express::Base)(get_attribute_value(11))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcWorkControl::setStartTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(11, v);if constexpr (false)unset_attribute_value(11); }
::Ifc2x3::IfcDateTimeSelect Ifc2x3::IfcWorkControl::FinishTime() const { if(get_attribute_value(12).isNull()) { return ::Ifc2x3::IfcDateTimeSelect{}; } return ((express::Base)(get_attribute_value(12))).as<::Ifc2x3::IfcDateTimeSelect>(); }
void Ifc2x3::IfcWorkControl::setFinishTime(const ::Ifc2x3::IfcDateTimeSelect& v) { set_attribute_value(12, v);if constexpr (false)unset_attribute_value(12); }
std::optional< ::Ifc2x3::IfcWorkControlTypeEnum::Value > Ifc2x3::IfcWorkControl::WorkControlType() const { if(get_attribute_value(13).isNull()) { return std::nullopt; } return ::Ifc2x3::IfcWorkControlTypeEnum::FromString(get_attribute_value(13)); }
void Ifc2x3::IfcWorkControl::setWorkControlType(const std::optional< ::Ifc2x3::IfcWorkControlTypeEnum::Value >& v) { if (v) {set_attribute_value(13, EnumerationReference(&::Ifc2x3::IfcWorkControlTypeEnum::Class(), (size_t) *v));} else {unset_attribute_value(13);} }
std::optional< std::string > Ifc2x3::IfcWorkControl::UserDefinedControlType() const { if(get_attribute_value(14).isNull()) { return std::nullopt; } std::string v = get_attribute_value(14); return v; }
void Ifc2x3::IfcWorkControl::setUserDefinedControlType(const std::optional< std::string >& v) { if (v) {set_attribute_value(14, *v);} else {unset_attribute_value(14);} }


// const IfcParse::entity& Ifc2x3::IfcWorkControl::declaration() const { return *((IfcParse::entity*)IFC2X3_types[973]); }
const IfcParse::entity& Ifc2x3::IfcWorkControl::Class() { return *((IfcParse::entity*)IFC2X3_types[973]); }
// Ifc2x3::IfcWorkControl::IfcWorkControl(const std::weak_ptr<InstanceData>& e) : IfcControl(e) { }
// Ifc2x3::IfcWorkControl::IfcWorkControl(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_Identifier, ::Ifc2x3::IfcDateTimeSelect v7_CreationDate, std::optional< std::vector< ::Ifc2x3::IfcPerson > > v8_Creators, std::optional< std::string > v9_Purpose, std::optional< double > v10_Duration, std::optional< double > v11_TotalFloat, ::Ifc2x3::IfcDateTimeSelect v12_StartTime, ::Ifc2x3::IfcDateTimeSelect v13_FinishTime, std::optional< ::Ifc2x3::IfcWorkControlTypeEnum::Value > v14_WorkControlType, std::optional< std::string > v15_UserDefinedControlType) : IfcControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(15))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_Identifier));set_attribute_value(6, (v7_CreationDate)); if (v8_Creators) {set_attribute_value(7, (*v8_Creators)->generalize()); } if (v9_Purpose) {set_attribute_value(8, (*v9_Purpose)); } if (v10_Duration) {set_attribute_value(9, (*v10_Duration)); } if (v11_TotalFloat) {set_attribute_value(10, (*v11_TotalFloat)); }set_attribute_value(11, (v12_StartTime)); if (v13_FinishTime) {set_attribute_value(12, (*v13_FinishTime)); } if (v14_WorkControlType) {set_attribute_value(13, (EnumerationReference(&::Ifc2x3::IfcWorkControlTypeEnum::Class(),(size_t)*v14_WorkControlType))); } if (v15_UserDefinedControlType) {set_attribute_value(14, (*v15_UserDefinedControlType)); }; populate_derived(); }

// Function implementations for IfcWorkPlan


// const IfcParse::entity& Ifc2x3::IfcWorkPlan::declaration() const { return *((IfcParse::entity*)IFC2X3_types[975]); }
const IfcParse::entity& Ifc2x3::IfcWorkPlan::Class() { return *((IfcParse::entity*)IFC2X3_types[975]); }
// Ifc2x3::IfcWorkPlan::IfcWorkPlan(const std::weak_ptr<InstanceData>& e) : IfcWorkControl(e) { }
// Ifc2x3::IfcWorkPlan::IfcWorkPlan(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_Identifier, ::Ifc2x3::IfcDateTimeSelect v7_CreationDate, std::optional< std::vector< ::Ifc2x3::IfcPerson > > v8_Creators, std::optional< std::string > v9_Purpose, std::optional< double > v10_Duration, std::optional< double > v11_TotalFloat, ::Ifc2x3::IfcDateTimeSelect v12_StartTime, ::Ifc2x3::IfcDateTimeSelect v13_FinishTime, std::optional< ::Ifc2x3::IfcWorkControlTypeEnum::Value > v14_WorkControlType, std::optional< std::string > v15_UserDefinedControlType) : IfcWorkControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(15))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_Identifier));set_attribute_value(6, (v7_CreationDate)); if (v8_Creators) {set_attribute_value(7, (*v8_Creators)->generalize()); } if (v9_Purpose) {set_attribute_value(8, (*v9_Purpose)); } if (v10_Duration) {set_attribute_value(9, (*v10_Duration)); } if (v11_TotalFloat) {set_attribute_value(10, (*v11_TotalFloat)); }set_attribute_value(11, (v12_StartTime)); if (v13_FinishTime) {set_attribute_value(12, (*v13_FinishTime)); } if (v14_WorkControlType) {set_attribute_value(13, (EnumerationReference(&::Ifc2x3::IfcWorkControlTypeEnum::Class(),(size_t)*v14_WorkControlType))); } if (v15_UserDefinedControlType) {set_attribute_value(14, (*v15_UserDefinedControlType)); }; populate_derived(); }

// Function implementations for IfcWorkSchedule


// const IfcParse::entity& Ifc2x3::IfcWorkSchedule::declaration() const { return *((IfcParse::entity*)IFC2X3_types[976]); }
const IfcParse::entity& Ifc2x3::IfcWorkSchedule::Class() { return *((IfcParse::entity*)IFC2X3_types[976]); }
// Ifc2x3::IfcWorkSchedule::IfcWorkSchedule(const std::weak_ptr<InstanceData>& e) : IfcWorkControl(e) { }
// Ifc2x3::IfcWorkSchedule::IfcWorkSchedule(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType, std::string v6_Identifier, ::Ifc2x3::IfcDateTimeSelect v7_CreationDate, std::optional< std::vector< ::Ifc2x3::IfcPerson > > v8_Creators, std::optional< std::string > v9_Purpose, std::optional< double > v10_Duration, std::optional< double > v11_TotalFloat, ::Ifc2x3::IfcDateTimeSelect v12_StartTime, ::Ifc2x3::IfcDateTimeSelect v13_FinishTime, std::optional< ::Ifc2x3::IfcWorkControlTypeEnum::Value > v14_WorkControlType, std::optional< std::string > v15_UserDefinedControlType) : IfcWorkControl(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(15))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }set_attribute_value(5, (v6_Identifier));set_attribute_value(6, (v7_CreationDate)); if (v8_Creators) {set_attribute_value(7, (*v8_Creators)->generalize()); } if (v9_Purpose) {set_attribute_value(8, (*v9_Purpose)); } if (v10_Duration) {set_attribute_value(9, (*v10_Duration)); } if (v11_TotalFloat) {set_attribute_value(10, (*v11_TotalFloat)); }set_attribute_value(11, (v12_StartTime)); if (v13_FinishTime) {set_attribute_value(12, (*v13_FinishTime)); } if (v14_WorkControlType) {set_attribute_value(13, (EnumerationReference(&::Ifc2x3::IfcWorkControlTypeEnum::Class(),(size_t)*v14_WorkControlType))); } if (v15_UserDefinedControlType) {set_attribute_value(14, (*v15_UserDefinedControlType)); }; populate_derived(); }

// Function implementations for IfcZShapeProfileDef
double Ifc2x3::IfcZShapeProfileDef::Depth() const {  double v = get_attribute_value(3); return v; }
void Ifc2x3::IfcZShapeProfileDef::setDepth(const double& v) { set_attribute_value(3, v);if constexpr (false)unset_attribute_value(3); }
double Ifc2x3::IfcZShapeProfileDef::FlangeWidth() const {  double v = get_attribute_value(4); return v; }
void Ifc2x3::IfcZShapeProfileDef::setFlangeWidth(const double& v) { set_attribute_value(4, v);if constexpr (false)unset_attribute_value(4); }
double Ifc2x3::IfcZShapeProfileDef::WebThickness() const {  double v = get_attribute_value(5); return v; }
void Ifc2x3::IfcZShapeProfileDef::setWebThickness(const double& v) { set_attribute_value(5, v);if constexpr (false)unset_attribute_value(5); }
double Ifc2x3::IfcZShapeProfileDef::FlangeThickness() const {  double v = get_attribute_value(6); return v; }
void Ifc2x3::IfcZShapeProfileDef::setFlangeThickness(const double& v) { set_attribute_value(6, v);if constexpr (false)unset_attribute_value(6); }
std::optional< double > Ifc2x3::IfcZShapeProfileDef::FilletRadius() const { if(get_attribute_value(7).isNull()) { return std::nullopt; } double v = get_attribute_value(7); return v; }
void Ifc2x3::IfcZShapeProfileDef::setFilletRadius(const std::optional< double >& v) { if (v) {set_attribute_value(7, *v);} else {unset_attribute_value(7);} }
std::optional< double > Ifc2x3::IfcZShapeProfileDef::EdgeRadius() const { if(get_attribute_value(8).isNull()) { return std::nullopt; } double v = get_attribute_value(8); return v; }
void Ifc2x3::IfcZShapeProfileDef::setEdgeRadius(const std::optional< double >& v) { if (v) {set_attribute_value(8, *v);} else {unset_attribute_value(8);} }


// const IfcParse::entity& Ifc2x3::IfcZShapeProfileDef::declaration() const { return *((IfcParse::entity*)IFC2X3_types[979]); }
const IfcParse::entity& Ifc2x3::IfcZShapeProfileDef::Class() { return *((IfcParse::entity*)IFC2X3_types[979]); }
// Ifc2x3::IfcZShapeProfileDef::IfcZShapeProfileDef(const std::weak_ptr<InstanceData>& e) : IfcParameterizedProfileDef(e) { }
// Ifc2x3::IfcZShapeProfileDef::IfcZShapeProfileDef(::Ifc2x3::IfcProfileTypeEnum::Value v1_ProfileType, std::optional< std::string > v2_ProfileName, ::Ifc2x3::IfcAxis2Placement2D v3_Position, double v4_Depth, double v5_FlangeWidth, double v6_WebThickness, double v7_FlangeThickness, std::optional< double > v8_FilletRadius, std::optional< double > v9_EdgeRadius) : IfcParameterizedProfileDef(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(9))) { set_attribute_value(0, (EnumerationReference(&::Ifc2x3::IfcProfileTypeEnum::Class(),(size_t)v1_ProfileType))); if (v2_ProfileName) {set_attribute_value(1, (*v2_ProfileName)); }set_attribute_value(2, (v3_Position));set_attribute_value(3, (v4_Depth));set_attribute_value(4, (v5_FlangeWidth));set_attribute_value(5, (v6_WebThickness));set_attribute_value(6, (v7_FlangeThickness)); if (v8_FilletRadius) {set_attribute_value(7, (*v8_FilletRadius)); } if (v9_EdgeRadius) {set_attribute_value(8, (*v9_EdgeRadius)); }; populate_derived(); }

// Function implementations for IfcZone


// const IfcParse::entity& Ifc2x3::IfcZone::declaration() const { return *((IfcParse::entity*)IFC2X3_types[978]); }
const IfcParse::entity& Ifc2x3::IfcZone::Class() { return *((IfcParse::entity*)IFC2X3_types[978]); }
// Ifc2x3::IfcZone::IfcZone(const std::weak_ptr<InstanceData>& e) : IfcGroup(e) { }
// Ifc2x3::IfcZone::IfcZone(std::string v1_GlobalId, ::Ifc2x3::IfcOwnerHistory v2_OwnerHistory, std::optional< std::string > v3_Name, std::optional< std::string > v4_Description, std::optional< std::string > v5_ObjectType) : IfcGroup(const std::weak_ptr<InstanceData>&(in_memory_attribute_storage(5))) { set_attribute_value(0, (v1_GlobalId));set_attribute_value(1, (v2_OwnerHistory)); if (v3_Name) {set_attribute_value(2, (*v3_Name)); } if (v4_Description) {set_attribute_value(3, (*v4_Description)); } if (v5_ObjectType) {set_attribute_value(4, (*v5_ObjectType)); }; populate_derived(); }