IfcOpenShell/src/ifcopenshell-python/ifcopenshell/api/document/edit_reference.py

class Usecase:
    def __init__(self, file, **settings):
        self.file = file
        self.settings = {
            "reference": None,
            "attributes": {}
        }
        for key, value in settings.items():
            self.settings[key] = value

    def execute(self):
        for name, value in self.settings["attributes"].items():
            setattr(self.settings["reference"], name, value)