len(get_inverse) -> get_total_inverses

src/ifcopenshell-python/ifcopenshell/api/cost/edit_cost_value.py

@@ -58,6 +58,6 @@ def edit_cost_value(
                     value["ValueComponent"],
                 )
                 value = file.create_entity("IfcMeasureWithUnit", value_component, value["UnitComponent"])
-            if old_unit_basis and len(file.get_inverse(old_unit_basis)) == 0:
+            if old_unit_basis and file.get_total_inverses(old_unit_basis) == 0:
                 ifcopenshell.util.element.remove_deep(file, old_unit_basis)
         setattr(cost_value, name, value)

src/ifcopenshell-python/ifcopenshell/api/cost/remove_cost_item_quantity.py

@@ -43,7 +43,7 @@ def remove_cost_item_quantity(
         ifcopenshell.api.cost.remove_cost_item(model,
             cost_item=item, physical_quantity=quantity)
     """
-    if len(file.get_inverse(physical_quantity)) == 1:
+    if file.get_total_inverses(physical_quantity) == 1:
         file.remove(physical_quantity)
         return
     quantities = list(cost_item.CostQuantities or [])

src/ifcopenshell-python/ifcopenshell/api/cost/remove_cost_value.py

@@ -45,7 +45,7 @@ def remove_cost_value(
 
         ifcopenshell.api.cost.remove_cost_value(model, parent=item, cost_value=value)
     """
-    if len(file.get_inverse(cost_value)) == 1:
+    if file.get_total_inverses(cost_value) == 1:
         file.remove(cost_value)
         # TODO deep purge
     elif parent.is_a("IfcCostItem"):