assimp.assimp/code/IFCReaderGen.h

/*
Open Asset Import Library (ASSIMP)
----------------------------------------------------------------------

Copyright (c) 2006-2010, ASSIMP Development Team
All rights reserved.

Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the
following conditions are met:

* Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
  materials provided with the distribution.

* Neither the name of the ASSIMP team, nor the names of its
  contributors may be used to endorse or promote products
  derived from this software without specific prior
  written permission of the ASSIMP Development Team.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

----------------------------------------------------------------------
*/

/** MACHINE-GENERATED by scripts/ICFImporter/CppGenerator.py */

#ifndef INCLUDED_IFC_READER_GEN_H
#define INCLUDED_IFC_READER_GEN_H

#include "STEPFile.h"

namespace Assimp {
namespace IFC {
    using namespace STEP;
    using namespace STEP::EXPRESS;


    struct NotImplemented : public ObjectHelper<NotImplemented,0> {

    };


    // ******************************************************************************
    // IFC Custom data types
    // ******************************************************************************


    // C++ wrapper type for IfcAbsorbedDoseMeasure
    typedef REAL IfcAbsorbedDoseMeasure;
    // C++ wrapper type for IfcAccelerationMeasure
    typedef REAL IfcAccelerationMeasure;
    // C++ wrapper type for IfcAmountOfSubstanceMeasure
    typedef REAL IfcAmountOfSubstanceMeasure;
    // C++ wrapper type for IfcAngularVelocityMeasure
    typedef REAL IfcAngularVelocityMeasure;
    // C++ wrapper type for IfcAreaMeasure
    typedef REAL IfcAreaMeasure;
    // C++ wrapper type for IfcBoolean
    typedef BOOLEAN IfcBoolean;
    // C++ wrapper type for IfcBoxAlignment
    typedef STRING IfcBoxAlignment;
    // C++ wrapper type for IfcCompoundPlaneAngleMeasure
    typedef ListOf< INTEGER, 3, 3 > IfcCompoundPlaneAngleMeasure;
    // C++ wrapper type for IfcContextDependentMeasure
    typedef REAL IfcContextDependentMeasure;
    // C++ wrapper type for IfcCountMeasure
    typedef NUMBER IfcCountMeasure;
    // C++ wrapper type for IfcCurvatureMeasure
    typedef REAL IfcCurvatureMeasure;
    // C++ wrapper type for IfcDayInMonthNumber
    typedef INTEGER IfcDayInMonthNumber;
    // C++ wrapper type for IfcDaylightSavingHour
    typedef INTEGER IfcDaylightSavingHour;
    // C++ wrapper type for IfcDescriptiveMeasure
    typedef STRING IfcDescriptiveMeasure;
    // C++ wrapper type for IfcDimensionCount
    typedef INTEGER IfcDimensionCount;
    // C++ wrapper type for IfcDoseEquivalentMeasure
    typedef REAL IfcDoseEquivalentMeasure;
    // C++ wrapper type for IfcDynamicViscosityMeasure
    typedef REAL IfcDynamicViscosityMeasure;
    // C++ wrapper type for IfcElectricCapacitanceMeasure
    typedef REAL IfcElectricCapacitanceMeasure;
    // C++ wrapper type for IfcElectricChargeMeasure
    typedef REAL IfcElectricChargeMeasure;
    // C++ wrapper type for IfcElectricConductanceMeasure
    typedef REAL IfcElectricConductanceMeasure;
    // C++ wrapper type for IfcElectricCurrentMeasure
    typedef REAL IfcElectricCurrentMeasure;
    // C++ wrapper type for IfcElectricResistanceMeasure
    typedef REAL IfcElectricResistanceMeasure;
    // C++ wrapper type for IfcElectricVoltageMeasure
    typedef REAL IfcElectricVoltageMeasure;
    // C++ wrapper type for IfcEnergyMeasure
    typedef REAL IfcEnergyMeasure;
    // C++ wrapper type for IfcFontStyle
    typedef STRING IfcFontStyle;
    // C++ wrapper type for IfcFontVariant
    typedef STRING IfcFontVariant;
    // C++ wrapper type for IfcFontWeight
    typedef STRING IfcFontWeight;
    // C++ wrapper type for IfcForceMeasure
    typedef REAL IfcForceMeasure;
    // C++ wrapper type for IfcFrequencyMeasure
    typedef REAL IfcFrequencyMeasure;
    // C++ wrapper type for IfcGloballyUniqueId
    typedef STRING IfcGloballyUniqueId;
    // C++ wrapper type for IfcHeatFluxDensityMeasure
    typedef REAL IfcHeatFluxDensityMeasure;
    // C++ wrapper type for IfcHeatingValueMeasure
    typedef REAL IfcHeatingValueMeasure;
    // C++ wrapper type for IfcHourInDay
    typedef INTEGER IfcHourInDay;
    // C++ wrapper type for IfcIdentifier
    typedef STRING IfcIdentifier;
    // C++ wrapper type for IfcIlluminanceMeasure
    typedef REAL IfcIlluminanceMeasure;
    // C++ wrapper type for IfcInductanceMeasure
    typedef REAL IfcInductanceMeasure;
    // C++ wrapper type for IfcInteger
    typedef INTEGER IfcInteger;
    // C++ wrapper type for IfcIntegerCountRateMeasure
    typedef INTEGER IfcIntegerCountRateMeasure;
    // C++ wrapper type for IfcIonConcentrationMeasure
    typedef REAL IfcIonConcentrationMeasure;
    // C++ wrapper type for IfcIsothermalMoistureCapacityMeasure
    typedef REAL IfcIsothermalMoistureCapacityMeasure;
    // C++ wrapper type for IfcKinematicViscosityMeasure
    typedef REAL IfcKinematicViscosityMeasure;
    // C++ wrapper type for IfcLabel
    typedef STRING IfcLabel;
    // C++ wrapper type for IfcLengthMeasure
    typedef REAL IfcLengthMeasure;
    // C++ wrapper type for IfcLinearForceMeasure
    typedef REAL IfcLinearForceMeasure;
    // C++ wrapper type for IfcLinearMomentMeasure
    typedef REAL IfcLinearMomentMeasure;
    // C++ wrapper type for IfcLinearStiffnessMeasure
    typedef REAL IfcLinearStiffnessMeasure;
    // C++ wrapper type for IfcLinearVelocityMeasure
    typedef REAL IfcLinearVelocityMeasure;
    // C++ wrapper type for IfcLogical
    typedef LOGICAL IfcLogical;
    // C++ wrapper type for IfcLuminousFluxMeasure
    typedef REAL IfcLuminousFluxMeasure;
    // C++ wrapper type for IfcLuminousIntensityDistributionMeasure
    typedef REAL IfcLuminousIntensityDistributionMeasure;
    // C++ wrapper type for IfcLuminousIntensityMeasure
    typedef REAL IfcLuminousIntensityMeasure;
    // C++ wrapper type for IfcMagneticFluxDensityMeasure
    typedef REAL IfcMagneticFluxDensityMeasure;
    // C++ wrapper type for IfcMagneticFluxMeasure
    typedef REAL IfcMagneticFluxMeasure;
    // C++ wrapper type for IfcMassDensityMeasure
    typedef REAL IfcMassDensityMeasure;
    // C++ wrapper type for IfcMassFlowRateMeasure
    typedef REAL IfcMassFlowRateMeasure;
    // C++ wrapper type for IfcMassMeasure
    typedef REAL IfcMassMeasure;
    // C++ wrapper type for IfcMassPerLengthMeasure
    typedef REAL IfcMassPerLengthMeasure;
    // C++ wrapper type for IfcMinuteInHour
    typedef INTEGER IfcMinuteInHour;
    // C++ wrapper type for IfcModulusOfElasticityMeasure
    typedef REAL IfcModulusOfElasticityMeasure;
    // C++ wrapper type for IfcModulusOfLinearSubgradeReactionMeasure
    typedef REAL IfcModulusOfLinearSubgradeReactionMeasure;
    // C++ wrapper type for IfcModulusOfRotationalSubgradeReactionMeasure
    typedef REAL IfcModulusOfRotationalSubgradeReactionMeasure;
    // C++ wrapper type for IfcModulusOfSubgradeReactionMeasure
    typedef REAL IfcModulusOfSubgradeReactionMeasure;
    // C++ wrapper type for IfcMoistureDiffusivityMeasure
    typedef REAL IfcMoistureDiffusivityMeasure;
    // C++ wrapper type for IfcMolecularWeightMeasure
    typedef REAL IfcMolecularWeightMeasure;
    // C++ wrapper type for IfcMomentOfInertiaMeasure
    typedef REAL IfcMomentOfInertiaMeasure;
    // C++ wrapper type for IfcMonetaryMeasure
    typedef REAL IfcMonetaryMeasure;
    // C++ wrapper type for IfcMonthInYearNumber
    typedef INTEGER IfcMonthInYearNumber;
    // C++ wrapper type for IfcNormalisedRatioMeasure
    typedef REAL IfcNormalisedRatioMeasure;
    // C++ wrapper type for IfcNumericMeasure
    typedef NUMBER IfcNumericMeasure;
    // C++ wrapper type for IfcPHMeasure
    typedef REAL IfcPHMeasure;
    // C++ wrapper type for IfcParameterValue
    typedef REAL IfcParameterValue;
    // C++ wrapper type for IfcPlanarForceMeasure
    typedef REAL IfcPlanarForceMeasure;
    // C++ wrapper type for IfcPlaneAngleMeasure
    typedef REAL IfcPlaneAngleMeasure;
    // C++ wrapper type for IfcPositiveLengthMeasure
    typedef REAL IfcPositiveLengthMeasure;
    // C++ wrapper type for IfcPositivePlaneAngleMeasure
    typedef REAL IfcPositivePlaneAngleMeasure;
    // C++ wrapper type for IfcPositiveRatioMeasure
    typedef REAL IfcPositiveRatioMeasure;
    // C++ wrapper type for IfcPowerMeasure
    typedef REAL IfcPowerMeasure;
    // C++ wrapper type for IfcPresentableText
    typedef STRING IfcPresentableText;
    // C++ wrapper type for IfcPressureMeasure
    typedef REAL IfcPressureMeasure;
    // C++ wrapper type for IfcRadioActivityMeasure
    typedef REAL IfcRadioActivityMeasure;
    // C++ wrapper type for IfcRatioMeasure
    typedef REAL IfcRatioMeasure;
    // C++ wrapper type for IfcReal
    typedef REAL IfcReal;
    // C++ wrapper type for IfcRotationalFrequencyMeasure
    typedef REAL IfcRotationalFrequencyMeasure;
    // C++ wrapper type for IfcRotationalMassMeasure
    typedef REAL IfcRotationalMassMeasure;
    // C++ wrapper type for IfcRotationalStiffnessMeasure
    typedef REAL IfcRotationalStiffnessMeasure;
    // C++ wrapper type for IfcSecondInMinute
    typedef REAL IfcSecondInMinute;
    // C++ wrapper type for IfcSectionModulusMeasure
    typedef REAL IfcSectionModulusMeasure;
    // C++ wrapper type for IfcSectionalAreaIntegralMeasure
    typedef REAL IfcSectionalAreaIntegralMeasure;
    // C++ wrapper type for IfcShearModulusMeasure
    typedef REAL IfcShearModulusMeasure;
    // C++ wrapper type for IfcSolidAngleMeasure
    typedef REAL IfcSolidAngleMeasure;
    // C++ wrapper type for IfcSoundPowerMeasure
    typedef REAL IfcSoundPowerMeasure;
    // C++ wrapper type for IfcSoundPressureMeasure
    typedef REAL IfcSoundPressureMeasure;
    // C++ wrapper type for IfcSpecificHeatCapacityMeasure
    typedef REAL IfcSpecificHeatCapacityMeasure;
    // C++ wrapper type for IfcSpecularExponent
    typedef REAL IfcSpecularExponent;
    // C++ wrapper type for IfcSpecularRoughness
    typedef REAL IfcSpecularRoughness;
    // C++ wrapper type for IfcTemperatureGradientMeasure
    typedef REAL IfcTemperatureGradientMeasure;
    // C++ wrapper type for IfcText
    typedef STRING IfcText;
    // C++ wrapper type for IfcTextAlignment
    typedef STRING IfcTextAlignment;
    // C++ wrapper type for IfcTextDecoration
    typedef STRING IfcTextDecoration;
    // C++ wrapper type for IfcTextFontName
    typedef STRING IfcTextFontName;
    // C++ wrapper type for IfcTextTransformation
    typedef STRING IfcTextTransformation;
    // C++ wrapper type for IfcThermalAdmittanceMeasure
    typedef REAL IfcThermalAdmittanceMeasure;
    // C++ wrapper type for IfcThermalConductivityMeasure
    typedef REAL IfcThermalConductivityMeasure;
    // C++ wrapper type for IfcThermalExpansionCoefficientMeasure
    typedef REAL IfcThermalExpansionCoefficientMeasure;
    // C++ wrapper type for IfcThermalResistanceMeasure
    typedef REAL IfcThermalResistanceMeasure;
    // C++ wrapper type for IfcThermalTransmittanceMeasure
    typedef REAL IfcThermalTransmittanceMeasure;
    // C++ wrapper type for IfcThermodynamicTemperatureMeasure
    typedef REAL IfcThermodynamicTemperatureMeasure;
    // C++ wrapper type for IfcTimeMeasure
    typedef REAL IfcTimeMeasure;
    // C++ wrapper type for IfcTimeStamp
    typedef INTEGER IfcTimeStamp;
    // C++ wrapper type for IfcTorqueMeasure
    typedef REAL IfcTorqueMeasure;
    // C++ wrapper type for IfcVaporPermeabilityMeasure
    typedef REAL IfcVaporPermeabilityMeasure;
    // C++ wrapper type for IfcVolumeMeasure
    typedef REAL IfcVolumeMeasure;
    // C++ wrapper type for IfcVolumetricFlowRateMeasure
    typedef REAL IfcVolumetricFlowRateMeasure;
    // C++ wrapper type for IfcWarpingConstantMeasure
    typedef REAL IfcWarpingConstantMeasure;
    // C++ wrapper type for IfcWarpingMomentMeasure
    typedef REAL IfcWarpingMomentMeasure;
    // C++ wrapper type for IfcYearNumber
    typedef INTEGER IfcYearNumber;
    // C++ wrapper type for IfcActionSourceTypeEnum
    typedef ENUMERATION IfcActionSourceTypeEnum;
    // C++ wrapper type for IfcActionTypeEnum
    typedef ENUMERATION IfcActionTypeEnum;
    // C++ wrapper type for IfcActuatorTypeEnum
    typedef ENUMERATION IfcActuatorTypeEnum;
    // C++ wrapper type for IfcAddressTypeEnum
    typedef ENUMERATION IfcAddressTypeEnum;
    // C++ wrapper type for IfcAheadOrBehind
    typedef ENUMERATION IfcAheadOrBehind;
    // C++ wrapper type for IfcAirTerminalBoxTypeEnum
    typedef ENUMERATION IfcAirTerminalBoxTypeEnum;
    // C++ wrapper type for IfcAirTerminalTypeEnum
    typedef ENUMERATION IfcAirTerminalTypeEnum;
    // C++ wrapper type for IfcAirToAirHeatRecoveryTypeEnum
    typedef ENUMERATION IfcAirToAirHeatRecoveryTypeEnum;
    // C++ wrapper type for IfcAlarmTypeEnum
    typedef ENUMERATION IfcAlarmTypeEnum;
    // C++ wrapper type for IfcAnalysisModelTypeEnum
    typedef ENUMERATION IfcAnalysisModelTypeEnum;
    // C++ wrapper type for IfcAnalysisTheoryTypeEnum
    typedef ENUMERATION IfcAnalysisTheoryTypeEnum;
    // C++ wrapper type for IfcArithmeticOperatorEnum
    typedef ENUMERATION IfcArithmeticOperatorEnum;
    // C++ wrapper type for IfcAssemblyPlaceEnum
    typedef ENUMERATION IfcAssemblyPlaceEnum;
    // C++ wrapper type for IfcBSplineCurveForm
    typedef ENUMERATION IfcBSplineCurveForm;
    // C++ wrapper type for IfcBeamTypeEnum
    typedef ENUMERATION IfcBeamTypeEnum;
    // C++ wrapper type for IfcBenchmarkEnum
    typedef ENUMERATION IfcBenchmarkEnum;
    // C++ wrapper type for IfcBoilerTypeEnum
    typedef ENUMERATION IfcBoilerTypeEnum;
    // C++ wrapper type for IfcBooleanOperator
    typedef ENUMERATION IfcBooleanOperator;
    // C++ wrapper type for IfcBuildingElementProxyTypeEnum
    typedef ENUMERATION IfcBuildingElementProxyTypeEnum;
    // C++ wrapper type for IfcCableCarrierFittingTypeEnum
    typedef ENUMERATION IfcCableCarrierFittingTypeEnum;
    // C++ wrapper type for IfcCableCarrierSegmentTypeEnum
    typedef ENUMERATION IfcCableCarrierSegmentTypeEnum;
    // C++ wrapper type for IfcCableSegmentTypeEnum
    typedef ENUMERATION IfcCableSegmentTypeEnum;
    // C++ wrapper type for IfcChangeActionEnum
    typedef ENUMERATION IfcChangeActionEnum;
    // C++ wrapper type for IfcChillerTypeEnum
    typedef ENUMERATION IfcChillerTypeEnum;
    // C++ wrapper type for IfcCoilTypeEnum
    typedef ENUMERATION IfcCoilTypeEnum;
    // C++ wrapper type for IfcColumnTypeEnum
    typedef ENUMERATION IfcColumnTypeEnum;
    // C++ wrapper type for IfcCompressorTypeEnum
    typedef ENUMERATION IfcCompressorTypeEnum;
    // C++ wrapper type for IfcCondenserTypeEnum
    typedef ENUMERATION IfcCondenserTypeEnum;
    // C++ wrapper type for IfcConnectionTypeEnum
    typedef ENUMERATION IfcConnectionTypeEnum;
    // C++ wrapper type for IfcConstraintEnum
    typedef ENUMERATION IfcConstraintEnum;
    // C++ wrapper type for IfcControllerTypeEnum
    typedef ENUMERATION IfcControllerTypeEnum;
    // C++ wrapper type for IfcCooledBeamTypeEnum
    typedef ENUMERATION IfcCooledBeamTypeEnum;
    // C++ wrapper type for IfcCoolingTowerTypeEnum
    typedef ENUMERATION IfcCoolingTowerTypeEnum;
    // C++ wrapper type for IfcCostScheduleTypeEnum
    typedef ENUMERATION IfcCostScheduleTypeEnum;
    // C++ wrapper type for IfcCoveringTypeEnum
    typedef ENUMERATION IfcCoveringTypeEnum;
    // C++ wrapper type for IfcCurrencyEnum
    typedef ENUMERATION IfcCurrencyEnum;
    // C++ wrapper type for IfcCurtainWallTypeEnum
    typedef ENUMERATION IfcCurtainWallTypeEnum;
    // C++ wrapper type for IfcDamperTypeEnum
    typedef ENUMERATION IfcDamperTypeEnum;
    // C++ wrapper type for IfcDataOriginEnum
    typedef ENUMERATION IfcDataOriginEnum;
    // C++ wrapper type for IfcDerivedUnitEnum
    typedef ENUMERATION IfcDerivedUnitEnum;
    // C++ wrapper type for IfcDimensionExtentUsage
    typedef ENUMERATION IfcDimensionExtentUsage;
    // C++ wrapper type for IfcDirectionSenseEnum
    typedef ENUMERATION IfcDirectionSenseEnum;
    // C++ wrapper type for IfcDistributionChamberElementTypeEnum
    typedef ENUMERATION IfcDistributionChamberElementTypeEnum;
    // C++ wrapper type for IfcDocumentConfidentialityEnum
    typedef ENUMERATION IfcDocumentConfidentialityEnum;
    // C++ wrapper type for IfcDocumentStatusEnum
    typedef ENUMERATION IfcDocumentStatusEnum;
    // C++ wrapper type for IfcDoorPanelOperationEnum
    typedef ENUMERATION IfcDoorPanelOperationEnum;
    // C++ wrapper type for IfcDoorPanelPositionEnum
    typedef ENUMERATION IfcDoorPanelPositionEnum;
    // C++ wrapper type for IfcDoorStyleConstructionEnum
    typedef ENUMERATION IfcDoorStyleConstructionEnum;
    // C++ wrapper type for IfcDoorStyleOperationEnum
    typedef ENUMERATION IfcDoorStyleOperationEnum;
    // C++ wrapper type for IfcDuctFittingTypeEnum
    typedef ENUMERATION IfcDuctFittingTypeEnum;
    // C++ wrapper type for IfcDuctSegmentTypeEnum
    typedef ENUMERATION IfcDuctSegmentTypeEnum;
    // C++ wrapper type for IfcDuctSilencerTypeEnum
    typedef ENUMERATION IfcDuctSilencerTypeEnum;
    // C++ wrapper type for IfcElectricApplianceTypeEnum
    typedef ENUMERATION IfcElectricApplianceTypeEnum;
    // C++ wrapper type for IfcElectricCurrentEnum
    typedef ENUMERATION IfcElectricCurrentEnum;
    // C++ wrapper type for IfcElectricDistributionPointFunctionEnum
    typedef ENUMERATION IfcElectricDistributionPointFunctionEnum;
    // C++ wrapper type for IfcElectricFlowStorageDeviceTypeEnum
    typedef ENUMERATION IfcElectricFlowStorageDeviceTypeEnum;
    // C++ wrapper type for IfcElectricGeneratorTypeEnum
    typedef ENUMERATION IfcElectricGeneratorTypeEnum;
    // C++ wrapper type for IfcElectricHeaterTypeEnum
    typedef ENUMERATION IfcElectricHeaterTypeEnum;
    // C++ wrapper type for IfcElectricMotorTypeEnum
    typedef ENUMERATION IfcElectricMotorTypeEnum;
    // C++ wrapper type for IfcElectricTimeControlTypeEnum
    typedef ENUMERATION IfcElectricTimeControlTypeEnum;
    // C++ wrapper type for IfcElementAssemblyTypeEnum
    typedef ENUMERATION IfcElementAssemblyTypeEnum;
    // C++ wrapper type for IfcElementCompositionEnum
    typedef ENUMERATION IfcElementCompositionEnum;
    // C++ wrapper type for IfcEnergySequenceEnum
    typedef ENUMERATION IfcEnergySequenceEnum;
    // C++ wrapper type for IfcEnvironmentalImpactCategoryEnum
    typedef ENUMERATION IfcEnvironmentalImpactCategoryEnum;
    // C++ wrapper type for IfcEvaporativeCoolerTypeEnum
    typedef ENUMERATION IfcEvaporativeCoolerTypeEnum;
    // C++ wrapper type for IfcEvaporatorTypeEnum
    typedef ENUMERATION IfcEvaporatorTypeEnum;
    // C++ wrapper type for IfcFanTypeEnum
    typedef ENUMERATION IfcFanTypeEnum;
    // C++ wrapper type for IfcFilterTypeEnum
    typedef ENUMERATION IfcFilterTypeEnum;
    // C++ wrapper type for IfcFireSuppressionTerminalTypeEnum
    typedef ENUMERATION IfcFireSuppressionTerminalTypeEnum;
    // C++ wrapper type for IfcFlowDirectionEnum
    typedef ENUMERATION IfcFlowDirectionEnum;
    // C++ wrapper type for IfcFlowInstrumentTypeEnum
    typedef ENUMERATION IfcFlowInstrumentTypeEnum;
    // C++ wrapper type for IfcFlowMeterTypeEnum
    typedef ENUMERATION IfcFlowMeterTypeEnum;
    // C++ wrapper type for IfcFootingTypeEnum
    typedef ENUMERATION IfcFootingTypeEnum;
    // C++ wrapper type for IfcGasTerminalTypeEnum
    typedef ENUMERATION IfcGasTerminalTypeEnum;
    // C++ wrapper type for IfcGeometricProjectionEnum
    typedef ENUMERATION IfcGeometricProjectionEnum;
    // C++ wrapper type for IfcGlobalOrLocalEnum
    typedef ENUMERATION IfcGlobalOrLocalEnum;
    // C++ wrapper type for IfcHeatExchangerTypeEnum
    typedef ENUMERATION IfcHeatExchangerTypeEnum;
    // C++ wrapper type for IfcHumidifierTypeEnum
    typedef ENUMERATION IfcHumidifierTypeEnum;
    // C++ wrapper type for IfcInternalOrExternalEnum
    typedef ENUMERATION IfcInternalOrExternalEnum;
    // C++ wrapper type for IfcInventoryTypeEnum
    typedef ENUMERATION IfcInventoryTypeEnum;
    // C++ wrapper type for IfcJunctionBoxTypeEnum
    typedef ENUMERATION IfcJunctionBoxTypeEnum;
    // C++ wrapper type for IfcLampTypeEnum
    typedef ENUMERATION IfcLampTypeEnum;
    // C++ wrapper type for IfcLayerSetDirectionEnum
    typedef ENUMERATION IfcLayerSetDirectionEnum;
    // C++ wrapper type for IfcLightDistributionCurveEnum
    typedef ENUMERATION IfcLightDistributionCurveEnum;
    // C++ wrapper type for IfcLightEmissionSourceEnum
    typedef ENUMERATION IfcLightEmissionSourceEnum;
    // C++ wrapper type for IfcLightFixtureTypeEnum
    typedef ENUMERATION IfcLightFixtureTypeEnum;
    // C++ wrapper type for IfcLoadGroupTypeEnum
    typedef ENUMERATION IfcLoadGroupTypeEnum;
    // C++ wrapper type for IfcLogicalOperatorEnum
    typedef ENUMERATION IfcLogicalOperatorEnum;
    // C++ wrapper type for IfcMemberTypeEnum
    typedef ENUMERATION IfcMemberTypeEnum;
    // C++ wrapper type for IfcMotorConnectionTypeEnum
    typedef ENUMERATION IfcMotorConnectionTypeEnum;
    // C++ wrapper type for IfcNullStyle
    typedef ENUMERATION IfcNullStyle;
    // C++ wrapper type for IfcObjectTypeEnum
    typedef ENUMERATION IfcObjectTypeEnum;
    // C++ wrapper type for IfcObjectiveEnum
    typedef ENUMERATION IfcObjectiveEnum;
    // C++ wrapper type for IfcOccupantTypeEnum
    typedef ENUMERATION IfcOccupantTypeEnum;
    // C++ wrapper type for IfcOutletTypeEnum
    typedef ENUMERATION IfcOutletTypeEnum;
    // C++ wrapper type for IfcPermeableCoveringOperationEnum
    typedef ENUMERATION IfcPermeableCoveringOperationEnum;
    // C++ wrapper type for IfcPhysicalOrVirtualEnum
    typedef ENUMERATION IfcPhysicalOrVirtualEnum;
    // C++ wrapper type for IfcPileConstructionEnum
    typedef ENUMERATION IfcPileConstructionEnum;
    // C++ wrapper type for IfcPileTypeEnum
    typedef ENUMERATION IfcPileTypeEnum;
    // C++ wrapper type for IfcPipeFittingTypeEnum
    typedef ENUMERATION IfcPipeFittingTypeEnum;
    // C++ wrapper type for IfcPipeSegmentTypeEnum
    typedef ENUMERATION IfcPipeSegmentTypeEnum;
    // C++ wrapper type for IfcPlateTypeEnum
    typedef ENUMERATION IfcPlateTypeEnum;
    // C++ wrapper type for IfcProcedureTypeEnum
    typedef ENUMERATION IfcProcedureTypeEnum;
    // C++ wrapper type for IfcProfileTypeEnum
    typedef ENUMERATION IfcProfileTypeEnum;
    // C++ wrapper type for IfcProjectOrderRecordTypeEnum
    typedef ENUMERATION IfcProjectOrderRecordTypeEnum;
    // C++ wrapper type for IfcProjectOrderTypeEnum
    typedef ENUMERATION IfcProjectOrderTypeEnum;
    // C++ wrapper type for IfcProjectedOrTrueLengthEnum
    typedef ENUMERATION IfcProjectedOrTrueLengthEnum;
    // C++ wrapper type for IfcPropertySourceEnum
    typedef ENUMERATION IfcPropertySourceEnum;
    // C++ wrapper type for IfcProtectiveDeviceTypeEnum
    typedef ENUMERATION IfcProtectiveDeviceTypeEnum;
    // C++ wrapper type for IfcPumpTypeEnum
    typedef ENUMERATION IfcPumpTypeEnum;
    // C++ wrapper type for IfcRailingTypeEnum
    typedef ENUMERATION IfcRailingTypeEnum;
    // C++ wrapper type for IfcRampFlightTypeEnum
    typedef ENUMERATION IfcRampFlightTypeEnum;
    // C++ wrapper type for IfcRampTypeEnum
    typedef ENUMERATION IfcRampTypeEnum;
    // C++ wrapper type for IfcReflectanceMethodEnum
    typedef ENUMERATION IfcReflectanceMethodEnum;
    // C++ wrapper type for IfcReinforcingBarRoleEnum
    typedef ENUMERATION IfcReinforcingBarRoleEnum;
    // C++ wrapper type for IfcReinforcingBarSurfaceEnum
    typedef ENUMERATION IfcReinforcingBarSurfaceEnum;
    // C++ wrapper type for IfcResourceConsumptionEnum
    typedef ENUMERATION IfcResourceConsumptionEnum;
    // C++ wrapper type for IfcRibPlateDirectionEnum
    typedef ENUMERATION IfcRibPlateDirectionEnum;
    // C++ wrapper type for IfcRoleEnum
    typedef ENUMERATION IfcRoleEnum;
    // C++ wrapper type for IfcRoofTypeEnum
    typedef ENUMERATION IfcRoofTypeEnum;
    // C++ wrapper type for IfcSIPrefix
    typedef ENUMERATION IfcSIPrefix;
    // C++ wrapper type for IfcSIUnitName
    typedef ENUMERATION IfcSIUnitName;
    // C++ wrapper type for IfcSanitaryTerminalTypeEnum
    typedef ENUMERATION IfcSanitaryTerminalTypeEnum;
    // C++ wrapper type for IfcSectionTypeEnum
    typedef ENUMERATION IfcSectionTypeEnum;
    // C++ wrapper type for IfcSensorTypeEnum
    typedef ENUMERATION IfcSensorTypeEnum;
    // C++ wrapper type for IfcSequenceEnum
    typedef ENUMERATION IfcSequenceEnum;
    // C++ wrapper type for IfcServiceLifeFactorTypeEnum
    typedef ENUMERATION IfcServiceLifeFactorTypeEnum;
    // C++ wrapper type for IfcServiceLifeTypeEnum
    typedef ENUMERATION IfcServiceLifeTypeEnum;
    // C++ wrapper type for IfcSlabTypeEnum
    typedef ENUMERATION IfcSlabTypeEnum;
    // C++ wrapper type for IfcSoundScaleEnum
    typedef ENUMERATION IfcSoundScaleEnum;
    // C++ wrapper type for IfcSpaceHeaterTypeEnum
    typedef ENUMERATION IfcSpaceHeaterTypeEnum;
    // C++ wrapper type for IfcSpaceTypeEnum
    typedef ENUMERATION IfcSpaceTypeEnum;
    // C++ wrapper type for IfcStackTerminalTypeEnum
    typedef ENUMERATION IfcStackTerminalTypeEnum;
    // C++ wrapper type for IfcStairFlightTypeEnum
    typedef ENUMERATION IfcStairFlightTypeEnum;
    // C++ wrapper type for IfcStairTypeEnum
    typedef ENUMERATION IfcStairTypeEnum;
    // C++ wrapper type for IfcStateEnum
    typedef ENUMERATION IfcStateEnum;
    // C++ wrapper type for IfcStructuralCurveTypeEnum
    typedef ENUMERATION IfcStructuralCurveTypeEnum;
    // C++ wrapper type for IfcStructuralSurfaceTypeEnum
    typedef ENUMERATION IfcStructuralSurfaceTypeEnum;
    // C++ wrapper type for IfcSurfaceSide
    typedef ENUMERATION IfcSurfaceSide;
    // C++ wrapper type for IfcSurfaceTextureEnum
    typedef ENUMERATION IfcSurfaceTextureEnum;
    // C++ wrapper type for IfcSwitchingDeviceTypeEnum
    typedef ENUMERATION IfcSwitchingDeviceTypeEnum;
    // C++ wrapper type for IfcTankTypeEnum
    typedef ENUMERATION IfcTankTypeEnum;
    // C++ wrapper type for IfcTendonTypeEnum
    typedef ENUMERATION IfcTendonTypeEnum;
    // C++ wrapper type for IfcTextPath
    typedef ENUMERATION IfcTextPath;
    // C++ wrapper type for IfcThermalLoadSourceEnum
    typedef ENUMERATION IfcThermalLoadSourceEnum;
    // C++ wrapper type for IfcThermalLoadTypeEnum
    typedef ENUMERATION IfcThermalLoadTypeEnum;
    // C++ wrapper type for IfcTimeSeriesDataTypeEnum
    typedef ENUMERATION IfcTimeSeriesDataTypeEnum;
    // C++ wrapper type for IfcTimeSeriesScheduleTypeEnum
    typedef ENUMERATION IfcTimeSeriesScheduleTypeEnum;
    // C++ wrapper type for IfcTransformerTypeEnum
    typedef ENUMERATION IfcTransformerTypeEnum;
    // C++ wrapper type for IfcTransitionCode
    typedef ENUMERATION IfcTransitionCode;
    // C++ wrapper type for IfcTransportElementTypeEnum
    typedef ENUMERATION IfcTransportElementTypeEnum;
    // C++ wrapper type for IfcTrimmingPreference
    typedef ENUMERATION IfcTrimmingPreference;
    // C++ wrapper type for IfcTubeBundleTypeEnum
    typedef ENUMERATION IfcTubeBundleTypeEnum;
    // C++ wrapper type for IfcUnitEnum
    typedef ENUMERATION IfcUnitEnum;
    // C++ wrapper type for IfcUnitaryEquipmentTypeEnum
    typedef ENUMERATION IfcUnitaryEquipmentTypeEnum;
    // C++ wrapper type for IfcValveTypeEnum
    typedef ENUMERATION IfcValveTypeEnum;
    // C++ wrapper type for IfcVibrationIsolatorTypeEnum
    typedef ENUMERATION IfcVibrationIsolatorTypeEnum;
    // C++ wrapper type for IfcWallTypeEnum
    typedef ENUMERATION IfcWallTypeEnum;
    // C++ wrapper type for IfcWasteTerminalTypeEnum
    typedef ENUMERATION IfcWasteTerminalTypeEnum;
    // C++ wrapper type for IfcWindowPanelOperationEnum
    typedef ENUMERATION IfcWindowPanelOperationEnum;
    // C++ wrapper type for IfcWindowPanelPositionEnum
    typedef ENUMERATION IfcWindowPanelPositionEnum;
    // C++ wrapper type for IfcWindowStyleConstructionEnum
    typedef ENUMERATION IfcWindowStyleConstructionEnum;
    // C++ wrapper type for IfcWindowStyleOperationEnum
    typedef ENUMERATION IfcWindowStyleOperationEnum;
    // C++ wrapper type for IfcWorkControlTypeEnum
    typedef ENUMERATION IfcWorkControlTypeEnum;
    // C++ wrapper type for IfcActorSelect
    typedef SELECT IfcActorSelect;
    // C++ wrapper type for IfcAppliedValueSelect
    typedef SELECT IfcAppliedValueSelect;
    // C++ wrapper type for IfcAxis2Placement
    typedef SELECT IfcAxis2Placement;
    // C++ wrapper type for IfcBooleanOperand
    typedef SELECT IfcBooleanOperand;
    // C++ wrapper type for IfcCharacterStyleSelect
    typedef SELECT IfcCharacterStyleSelect;
    // C++ wrapper type for IfcClassificationNotationSelect
    typedef SELECT IfcClassificationNotationSelect;
    // C++ wrapper type for IfcColour
    typedef SELECT IfcColour;
    // C++ wrapper type for IfcColourOrFactor
    typedef SELECT IfcColourOrFactor;
    // C++ wrapper type for IfcConditionCriterionSelect
    typedef SELECT IfcConditionCriterionSelect;
    // C++ wrapper type for IfcCsgSelect
    typedef SELECT IfcCsgSelect;
    // C++ wrapper type for IfcCurveFontOrScaledCurveFontSelect
    typedef SELECT IfcCurveFontOrScaledCurveFontSelect;
    // C++ wrapper type for IfcCurveOrEdgeCurve
    typedef SELECT IfcCurveOrEdgeCurve;
    // C++ wrapper type for IfcCurveStyleFontSelect
    typedef SELECT IfcCurveStyleFontSelect;
    // C++ wrapper type for IfcDateTimeSelect
    typedef SELECT IfcDateTimeSelect;
    // C++ wrapper type for IfcDefinedSymbolSelect
    typedef SELECT IfcDefinedSymbolSelect;
    // C++ wrapper type for IfcDerivedMeasureValue
    typedef SELECT IfcDerivedMeasureValue;
    // C++ wrapper type for IfcDocumentSelect
    typedef SELECT IfcDocumentSelect;
    // C++ wrapper type for IfcDraughtingCalloutElement
    typedef SELECT IfcDraughtingCalloutElement;
    // C++ wrapper type for IfcFillAreaStyleTileShapeSelect
    typedef SELECT IfcFillAreaStyleTileShapeSelect;
    // C++ wrapper type for IfcFillStyleSelect
    typedef SELECT IfcFillStyleSelect;
    // C++ wrapper type for IfcGeometricSetSelect
    typedef SELECT IfcGeometricSetSelect;
    // C++ wrapper type for IfcHatchLineDistanceSelect
    typedef SELECT IfcHatchLineDistanceSelect;
    // C++ wrapper type for IfcLayeredItem
    typedef SELECT IfcLayeredItem;
    // C++ wrapper type for IfcLibrarySelect
    typedef SELECT IfcLibrarySelect;
    // C++ wrapper type for IfcLightDistributionDataSourceSelect
    typedef SELECT IfcLightDistributionDataSourceSelect;
    // C++ wrapper type for IfcMaterialSelect
    typedef SELECT IfcMaterialSelect;
    // C++ wrapper type for IfcMeasureValue
    typedef SELECT IfcMeasureValue;
    // C++ wrapper type for IfcMetricValueSelect
    typedef SELECT IfcMetricValueSelect;
    // C++ wrapper type for IfcObjectReferenceSelect
    typedef SELECT IfcObjectReferenceSelect;
    // C++ wrapper type for IfcOrientationSelect
    typedef SELECT IfcOrientationSelect;
    // C++ wrapper type for IfcPointOrVertexPoint
    typedef SELECT IfcPointOrVertexPoint;
    // C++ wrapper type for IfcPresentationStyleSelect
    typedef SELECT IfcPresentationStyleSelect;
    // C++ wrapper type for IfcShell
    typedef SELECT IfcShell;
    // C++ wrapper type for IfcSimpleValue
    typedef SELECT IfcSimpleValue;
    // C++ wrapper type for IfcSizeSelect
    typedef SELECT IfcSizeSelect;
    // C++ wrapper type for IfcSpecularHighlightSelect
    typedef SELECT IfcSpecularHighlightSelect;
    // C++ wrapper type for IfcStructuralActivityAssignmentSelect
    typedef SELECT IfcStructuralActivityAssignmentSelect;
    // C++ wrapper type for IfcSurfaceOrFaceSurface
    typedef SELECT IfcSurfaceOrFaceSurface;
    // C++ wrapper type for IfcSurfaceStyleElementSelect
    typedef SELECT IfcSurfaceStyleElementSelect;
    // C++ wrapper type for IfcSymbolStyleSelect
    typedef SELECT IfcSymbolStyleSelect;
    // C++ wrapper type for IfcTextFontSelect
    typedef SELECT IfcTextFontSelect;
    // C++ wrapper type for IfcTextStyleSelect
    typedef SELECT IfcTextStyleSelect;
    // C++ wrapper type for IfcTrimmingSelect
    typedef SELECT IfcTrimmingSelect;
    // C++ wrapper type for IfcUnit
    typedef SELECT IfcUnit;
    // C++ wrapper type for IfcValue
    typedef SELECT IfcValue;
    // C++ wrapper type for IfcVectorOrDirection
    typedef SELECT IfcVectorOrDirection;


    // ******************************************************************************
    // IFC Entities
    // ******************************************************************************

    struct IfcRepresentationItem;
    struct IfcGeometricRepresentationItem;
    struct IfcCurve;
    struct IfcBoundedCurve;
    struct IfcCompositeCurve;
    struct Ifc2DCompositeCurve;
    struct IfcRoot;
    struct IfcObjectDefinition;
    struct IfcObject;
    struct IfcControl;
    struct IfcActionRequest;
    struct IfcActor;
    typedef NotImplemented IfcActorRole; // (not currently used by Assimp)
    struct IfcTypeObject;
    struct IfcTypeProduct;
    struct IfcElementType;
    struct IfcDistributionElementType;
    struct IfcDistributionControlElementType;
    struct IfcActuatorType;
    typedef NotImplemented IfcAddress; // (not currently used by Assimp)
    struct IfcDistributionFlowElementType;
    struct IfcFlowControllerType;
    struct IfcAirTerminalBoxType;
    struct IfcFlowTerminalType;
    struct IfcAirTerminalType;
    struct IfcEnergyConversionDeviceType;
    struct IfcAirToAirHeatRecoveryType;
    struct IfcAlarmType;
    struct IfcDraughtingCallout;
    struct IfcDimensionCurveDirectedCallout;
    struct IfcAngularDimension;
    struct IfcProduct;
    struct IfcAnnotation;
    struct IfcStyledItem;
    struct IfcAnnotationOccurrence;
    struct IfcAnnotationCurveOccurrence;
    struct IfcAnnotationFillArea;
    struct IfcAnnotationFillAreaOccurrence;
    struct IfcAnnotationSurface;
    struct IfcAnnotationSurfaceOccurrence;
    struct IfcAnnotationSymbolOccurrence;
    struct IfcAnnotationTextOccurrence;
    typedef NotImplemented IfcApplication; // (not currently used by Assimp)
    typedef NotImplemented IfcAppliedValue; // (not currently used by Assimp)
    typedef NotImplemented IfcAppliedValueRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcApproval; // (not currently used by Assimp)
    typedef NotImplemented IfcApprovalActorRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcApprovalPropertyRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcApprovalRelationship; // (not currently used by Assimp)
    struct IfcProfileDef;
    struct IfcArbitraryClosedProfileDef;
    struct IfcArbitraryOpenProfileDef;
    struct IfcArbitraryProfileDefWithVoids;
    struct IfcGroup;
    struct IfcAsset;
    struct IfcParameterizedProfileDef;
    struct IfcIShapeProfileDef;
    struct IfcAsymmetricIShapeProfileDef;
    struct IfcPlacement;
    struct IfcAxis1Placement;
    struct IfcAxis2Placement2D;
    struct IfcAxis2Placement3D;
    struct IfcBSplineCurve;
    struct IfcElement;
    struct IfcBuildingElement;
    struct IfcBeam;
    struct IfcBuildingElementType;
    struct IfcBeamType;
    struct IfcBezierCurve;
    typedef NotImplemented IfcSurfaceTexture; // (not currently used by Assimp)
    typedef NotImplemented IfcBlobTexture; // (not currently used by Assimp)
    struct IfcCsgPrimitive3D;
    struct IfcBlock;
    struct IfcBoilerType;
    struct IfcBooleanResult;
    struct IfcBooleanClippingResult;
    typedef NotImplemented IfcBoundaryCondition; // (not currently used by Assimp)
    typedef NotImplemented IfcBoundaryEdgeCondition; // (not currently used by Assimp)
    typedef NotImplemented IfcBoundaryFaceCondition; // (not currently used by Assimp)
    typedef NotImplemented IfcBoundaryNodeCondition; // (not currently used by Assimp)
    typedef NotImplemented IfcBoundaryNodeConditionWarping; // (not currently used by Assimp)
    struct IfcSurface;
    struct IfcBoundedSurface;
    struct IfcBoundingBox;
    struct IfcHalfSpaceSolid;
    struct IfcBoxedHalfSpace;
    struct IfcSpatialStructureElement;
    struct IfcBuilding;
    struct IfcBuildingElementComponent;
    struct IfcBuildingElementPart;
    struct IfcBuildingElementProxy;
    struct IfcBuildingElementProxyType;
    struct IfcBuildingStorey;
    struct IfcCShapeProfileDef;
    struct IfcFlowFittingType;
    struct IfcCableCarrierFittingType;
    struct IfcFlowSegmentType;
    struct IfcCableCarrierSegmentType;
    struct IfcCableSegmentType;
    typedef NotImplemented IfcCalendarDate; // (not currently used by Assimp)
    struct IfcPoint;
    struct IfcCartesianPoint;
    struct IfcCartesianTransformationOperator;
    struct IfcCartesianTransformationOperator2D;
    struct IfcCartesianTransformationOperator2DnonUniform;
    struct IfcCartesianTransformationOperator3D;
    struct IfcCartesianTransformationOperator3DnonUniform;
    struct IfcCenterLineProfileDef;
    struct IfcFeatureElement;
    struct IfcFeatureElementSubtraction;
    struct IfcEdgeFeature;
    struct IfcChamferEdgeFeature;
    struct IfcChillerType;
    struct IfcConic;
    struct IfcCircle;
    struct IfcCircleProfileDef;
    struct IfcCircleHollowProfileDef;
    typedef NotImplemented IfcClassification; // (not currently used by Assimp)
    typedef NotImplemented IfcClassificationItem; // (not currently used by Assimp)
    typedef NotImplemented IfcClassificationItemRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcClassificationNotation; // (not currently used by Assimp)
    typedef NotImplemented IfcClassificationNotationFacet; // (not currently used by Assimp)
    typedef NotImplemented IfcExternalReference; // (not currently used by Assimp)
    typedef NotImplemented IfcClassificationReference; // (not currently used by Assimp)
    struct IfcTopologicalRepresentationItem;
    struct IfcConnectedFaceSet;
    struct IfcClosedShell;
    struct IfcCoilType;
    struct IfcColourSpecification;
    struct IfcColourRgb;
    struct IfcColumn;
    struct IfcColumnType;
    struct IfcProperty;
    struct IfcComplexProperty;
    struct IfcCompositeCurveSegment;
    struct IfcCompositeProfileDef;
    struct IfcFlowMovingDeviceType;
    struct IfcCompressorType;
    struct IfcCondenserType;
    struct IfcCondition;
    struct IfcConditionCriterion;
    typedef NotImplemented IfcConnectionGeometry; // (not currently used by Assimp)
    typedef NotImplemented IfcConnectionCurveGeometry; // (not currently used by Assimp)
    typedef NotImplemented IfcConnectionPointGeometry; // (not currently used by Assimp)
    typedef NotImplemented IfcConnectionPointEccentricity; // (not currently used by Assimp)
    typedef NotImplemented IfcConnectionPortGeometry; // (not currently used by Assimp)
    typedef NotImplemented IfcConnectionSurfaceGeometry; // (not currently used by Assimp)
    typedef NotImplemented IfcConstraint; // (not currently used by Assimp)
    typedef NotImplemented IfcConstraintAggregationRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcConstraintClassificationRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcConstraintRelationship; // (not currently used by Assimp)
    struct IfcResource;
    struct IfcConstructionResource;
    struct IfcConstructionEquipmentResource;
    struct IfcConstructionMaterialResource;
    struct IfcConstructionProductResource;
    struct IfcNamedUnit;
    struct IfcContextDependentUnit;
    struct IfcControllerType;
    struct IfcConversionBasedUnit;
    struct IfcCooledBeamType;
    struct IfcCoolingTowerType;
    typedef NotImplemented IfcCoordinatedUniversalTimeOffset; // (not currently used by Assimp)
    struct IfcCostItem;
    struct IfcCostSchedule;
    typedef NotImplemented IfcCostValue; // (not currently used by Assimp)
    struct IfcCovering;
    struct IfcCoveringType;
    struct IfcCraneRailAShapeProfileDef;
    struct IfcCraneRailFShapeProfileDef;
    struct IfcCrewResource;
    struct IfcSolidModel;
    struct IfcCsgSolid;
    typedef NotImplemented IfcCurrencyRelationship; // (not currently used by Assimp)
    struct IfcCurtainWall;
    struct IfcCurtainWallType;
    struct IfcCurveBoundedPlane;
    struct IfcPresentationStyle;
    typedef NotImplemented IfcCurveStyle; // (not currently used by Assimp)
    typedef NotImplemented IfcCurveStyleFont; // (not currently used by Assimp)
    typedef NotImplemented IfcCurveStyleFontAndScaling; // (not currently used by Assimp)
    typedef NotImplemented IfcCurveStyleFontPattern; // (not currently used by Assimp)
    struct IfcDamperType;
    typedef NotImplemented IfcDateAndTime; // (not currently used by Assimp)
    struct IfcDefinedSymbol;
    struct IfcDerivedProfileDef;
    typedef NotImplemented IfcDerivedUnit; // (not currently used by Assimp)
    typedef NotImplemented IfcDerivedUnitElement; // (not currently used by Assimp)
    struct IfcDiameterDimension;
    typedef NotImplemented IfcDraughtingCalloutRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcDimensionCalloutRelationship; // (not currently used by Assimp)
    struct IfcDimensionCurve;
    struct IfcTerminatorSymbol;
    struct IfcDimensionCurveTerminator;
    typedef NotImplemented IfcDimensionPair; // (not currently used by Assimp)
    typedef NotImplemented IfcDimensionalExponents; // (not currently used by Assimp)
    struct IfcDirection;
    struct IfcElementComponent;
    struct IfcDiscreteAccessory;
    struct IfcElementComponentType;
    struct IfcDiscreteAccessoryType;
    struct IfcDistributionElement;
    struct IfcDistributionFlowElement;
    struct IfcDistributionChamberElement;
    struct IfcDistributionChamberElementType;
    struct IfcDistributionControlElement;
    struct IfcPort;
    struct IfcDistributionPort;
    typedef NotImplemented IfcDocumentElectronicFormat; // (not currently used by Assimp)
    typedef NotImplemented IfcDocumentInformation; // (not currently used by Assimp)
    typedef NotImplemented IfcDocumentInformationRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcDocumentReference; // (not currently used by Assimp)
    struct IfcDoor;
    struct IfcPropertyDefinition;
    struct IfcPropertySetDefinition;
    typedef NotImplemented IfcDoorLiningProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcDoorPanelProperties; // (not currently used by Assimp)
    struct IfcDoorStyle;
    typedef NotImplemented IfcPreDefinedItem; // (not currently used by Assimp)
    typedef NotImplemented IfcPreDefinedColour; // (not currently used by Assimp)
    typedef NotImplemented IfcDraughtingPreDefinedColour; // (not currently used by Assimp)
    typedef NotImplemented IfcPreDefinedCurveFont; // (not currently used by Assimp)
    typedef NotImplemented IfcDraughtingPreDefinedCurveFont; // (not currently used by Assimp)
    typedef NotImplemented IfcPreDefinedTextFont; // (not currently used by Assimp)
    typedef NotImplemented IfcDraughtingPreDefinedTextFont; // (not currently used by Assimp)
    struct IfcDuctFittingType;
    struct IfcDuctSegmentType;
    struct IfcFlowTreatmentDeviceType;
    struct IfcDuctSilencerType;
    struct IfcEdge;
    struct IfcEdgeCurve;
    struct IfcLoop;
    struct IfcEdgeLoop;
    struct IfcElectricApplianceType;
    struct IfcFlowController;
    struct IfcElectricDistributionPoint;
    struct IfcFlowStorageDeviceType;
    struct IfcElectricFlowStorageDeviceType;
    struct IfcElectricGeneratorType;
    struct IfcElectricHeaterType;
    struct IfcElectricMotorType;
    struct IfcElectricTimeControlType;
    typedef NotImplemented IfcEnergyProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcElectricalBaseProperties; // (not currently used by Assimp)
    struct IfcSystem;
    struct IfcElectricalCircuit;
    struct IfcElectricalElement;
    struct IfcElementAssembly;
    struct IfcElementQuantity;
    struct IfcElementarySurface;
    struct IfcEllipse;
    struct IfcEllipseProfileDef;
    struct IfcEnergyConversionDevice;
    typedef NotImplemented IfcEnvironmentalImpactValue; // (not currently used by Assimp)
    struct IfcEquipmentElement;
    struct IfcEquipmentStandard;
    struct IfcEvaporativeCoolerType;
    struct IfcEvaporatorType;
    typedef NotImplemented IfcMaterialProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcExtendedMaterialProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcExternallyDefinedHatchStyle; // (not currently used by Assimp)
    typedef NotImplemented IfcExternallyDefinedSurfaceStyle; // (not currently used by Assimp)
    typedef NotImplemented IfcExternallyDefinedSymbol; // (not currently used by Assimp)
    typedef NotImplemented IfcExternallyDefinedTextFont; // (not currently used by Assimp)
    struct IfcSweptAreaSolid;
    struct IfcExtrudedAreaSolid;
    struct IfcFace;
    struct IfcFaceBasedSurfaceModel;
    struct IfcFaceBound;
    struct IfcFaceOuterBound;
    struct IfcFaceSurface;
    struct IfcManifoldSolidBrep;
    struct IfcFacetedBrep;
    struct IfcFacetedBrepWithVoids;
    typedef NotImplemented IfcStructuralConnectionCondition; // (not currently used by Assimp)
    typedef NotImplemented IfcFailureConnectionCondition; // (not currently used by Assimp)
    struct IfcFanType;
    struct IfcFastener;
    struct IfcFastenerType;
    struct IfcFeatureElementAddition;
    typedef NotImplemented IfcFillAreaStyle; // (not currently used by Assimp)
    struct IfcFillAreaStyleHatching;
    struct IfcFillAreaStyleTileSymbolWithStyle;
    struct IfcFillAreaStyleTiles;
    struct IfcFilterType;
    struct IfcFireSuppressionTerminalType;
    struct IfcFlowFitting;
    struct IfcFlowInstrumentType;
    struct IfcFlowMeterType;
    struct IfcFlowMovingDevice;
    struct IfcFlowSegment;
    struct IfcFlowStorageDevice;
    struct IfcFlowTerminal;
    struct IfcFlowTreatmentDevice;
    typedef NotImplemented IfcFluidFlowProperties; // (not currently used by Assimp)
    struct IfcFooting;
    typedef NotImplemented IfcFuelProperties; // (not currently used by Assimp)
    struct IfcFurnishingElement;
    struct IfcFurnishingElementType;
    struct IfcFurnitureStandard;
    struct IfcFurnitureType;
    struct IfcGasTerminalType;
    typedef NotImplemented IfcGeneralMaterialProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcProfileProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcGeneralProfileProperties; // (not currently used by Assimp)
    struct IfcGeometricSet;
    struct IfcGeometricCurveSet;
    struct IfcRepresentationContext;
    struct IfcGeometricRepresentationContext;
    struct IfcGeometricRepresentationSubContext;
    struct IfcGrid;
    typedef NotImplemented IfcGridAxis; // (not currently used by Assimp)
    struct IfcObjectPlacement;
    struct IfcGridPlacement;
    struct IfcHeatExchangerType;
    struct IfcHumidifierType;
    typedef NotImplemented IfcHygroscopicMaterialProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcImageTexture; // (not currently used by Assimp)
    struct IfcInventory;
    typedef NotImplemented IfcTimeSeries; // (not currently used by Assimp)
    typedef NotImplemented IfcIrregularTimeSeries; // (not currently used by Assimp)
    typedef NotImplemented IfcIrregularTimeSeriesValue; // (not currently used by Assimp)
    struct IfcJunctionBoxType;
    struct IfcLShapeProfileDef;
    struct IfcLaborResource;
    struct IfcLampType;
    typedef NotImplemented IfcLibraryInformation; // (not currently used by Assimp)
    typedef NotImplemented IfcLibraryReference; // (not currently used by Assimp)
    typedef NotImplemented IfcLightDistributionData; // (not currently used by Assimp)
    struct IfcLightFixtureType;
    typedef NotImplemented IfcLightIntensityDistribution; // (not currently used by Assimp)
    struct IfcLightSource;
    struct IfcLightSourceAmbient;
    struct IfcLightSourceDirectional;
    struct IfcLightSourceGoniometric;
    struct IfcLightSourcePositional;
    struct IfcLightSourceSpot;
    struct IfcLine;
    struct IfcLinearDimension;
    struct IfcLocalPlacement;
    typedef NotImplemented IfcLocalTime; // (not currently used by Assimp)
    struct IfcMappedItem;
    typedef NotImplemented IfcMaterial; // (not currently used by Assimp)
    typedef NotImplemented IfcMaterialClassificationRelationship; // (not currently used by Assimp)
    struct IfcProductRepresentation;
    struct IfcMaterialDefinitionRepresentation;
    typedef NotImplemented IfcMaterialLayer; // (not currently used by Assimp)
    typedef NotImplemented IfcMaterialLayerSet; // (not currently used by Assimp)
    typedef NotImplemented IfcMaterialLayerSetUsage; // (not currently used by Assimp)
    typedef NotImplemented IfcMaterialList; // (not currently used by Assimp)
    struct IfcMeasureWithUnit;
    typedef NotImplemented IfcMechanicalMaterialProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcMechanicalConcreteMaterialProperties; // (not currently used by Assimp)
    struct IfcMechanicalFastener;
    struct IfcMechanicalFastenerType;
    typedef NotImplemented IfcMechanicalSteelMaterialProperties; // (not currently used by Assimp)
    struct IfcMember;
    struct IfcMemberType;
    typedef NotImplemented IfcMetric; // (not currently used by Assimp)
    typedef NotImplemented IfcMonetaryUnit; // (not currently used by Assimp)
    struct IfcMotorConnectionType;
    struct IfcProcess;
    struct IfcTask;
    struct IfcMove;
    typedef NotImplemented IfcObjective; // (not currently used by Assimp)
    struct IfcOccupant;
    struct IfcOffsetCurve2D;
    struct IfcOffsetCurve3D;
    struct IfcOneDirectionRepeatFactor;
    struct IfcOpenShell;
    struct IfcOpeningElement;
    typedef NotImplemented IfcOpticalMaterialProperties; // (not currently used by Assimp)
    struct IfcOrderAction;
    typedef NotImplemented IfcOrganization; // (not currently used by Assimp)
    typedef NotImplemented IfcOrganizationRelationship; // (not currently used by Assimp)
    struct IfcOrientedEdge;
    struct IfcOutletType;
    typedef NotImplemented IfcOwnerHistory; // (not currently used by Assimp)
    struct IfcPath;
    struct IfcPerformanceHistory;
    typedef NotImplemented IfcPermeableCoveringProperties; // (not currently used by Assimp)
    struct IfcPermit;
    typedef NotImplemented IfcPerson; // (not currently used by Assimp)
    typedef NotImplemented IfcPersonAndOrganization; // (not currently used by Assimp)
    typedef NotImplemented IfcPhysicalQuantity; // (not currently used by Assimp)
    typedef NotImplemented IfcPhysicalComplexQuantity; // (not currently used by Assimp)
    typedef NotImplemented IfcPhysicalSimpleQuantity; // (not currently used by Assimp)
    struct IfcPile;
    struct IfcPipeFittingType;
    struct IfcPipeSegmentType;
    typedef NotImplemented IfcPixelTexture; // (not currently used by Assimp)
    struct IfcPlanarExtent;
    struct IfcPlanarBox;
    struct IfcPlane;
    struct IfcPlate;
    struct IfcPlateType;
    struct IfcPointOnCurve;
    struct IfcPointOnSurface;
    struct IfcPolyLoop;
    struct IfcPolygonalBoundedHalfSpace;
    struct IfcPolyline;
    typedef NotImplemented IfcPostalAddress; // (not currently used by Assimp)
    typedef NotImplemented IfcPreDefinedSymbol; // (not currently used by Assimp)
    typedef NotImplemented IfcPreDefinedDimensionSymbol; // (not currently used by Assimp)
    typedef NotImplemented IfcPreDefinedPointMarkerSymbol; // (not currently used by Assimp)
    typedef NotImplemented IfcPreDefinedTerminatorSymbol; // (not currently used by Assimp)
    typedef NotImplemented IfcPresentationLayerAssignment; // (not currently used by Assimp)
    typedef NotImplemented IfcPresentationLayerWithStyle; // (not currently used by Assimp)
    struct IfcPresentationStyleAssignment;
    struct IfcProcedure;
    struct IfcProductDefinitionShape;
    typedef NotImplemented IfcProductsOfCombustionProperties; // (not currently used by Assimp)
    struct IfcProject;
    struct IfcProjectOrder;
    struct IfcProjectOrderRecord;
    struct IfcProjectionCurve;
    struct IfcProjectionElement;
    struct IfcSimpleProperty;
    struct IfcPropertyBoundedValue;
    typedef NotImplemented IfcPropertyConstraintRelationship; // (not currently used by Assimp)
    typedef NotImplemented IfcPropertyDependencyRelationship; // (not currently used by Assimp)
    struct IfcPropertyEnumeratedValue;
    typedef NotImplemented IfcPropertyEnumeration; // (not currently used by Assimp)
    struct IfcPropertyListValue;
    struct IfcPropertyReferenceValue;
    struct IfcPropertySet;
    struct IfcPropertySingleValue;
    struct IfcPropertyTableValue;
    struct IfcProtectiveDeviceType;
    struct IfcProxy;
    struct IfcPumpType;
    typedef NotImplemented IfcQuantityArea; // (not currently used by Assimp)
    typedef NotImplemented IfcQuantityCount; // (not currently used by Assimp)
    typedef NotImplemented IfcQuantityLength; // (not currently used by Assimp)
    typedef NotImplemented IfcQuantityTime; // (not currently used by Assimp)
    typedef NotImplemented IfcQuantityVolume; // (not currently used by Assimp)
    typedef NotImplemented IfcQuantityWeight; // (not currently used by Assimp)
    struct IfcRadiusDimension;
    struct IfcRailing;
    struct IfcRailingType;
    struct IfcRamp;
    struct IfcRampFlight;
    struct IfcRampFlightType;
    struct IfcRationalBezierCurve;
    struct IfcRectangleProfileDef;
    struct IfcRectangleHollowProfileDef;
    struct IfcRectangularPyramid;
    struct IfcRectangularTrimmedSurface;
    typedef NotImplemented IfcReferencesValueDocument; // (not currently used by Assimp)
    typedef NotImplemented IfcRegularTimeSeries; // (not currently used by Assimp)
    typedef NotImplemented IfcReinforcementBarProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcReinforcementDefinitionProperties; // (not currently used by Assimp)
    struct IfcReinforcingElement;
    struct IfcReinforcingBar;
    struct IfcReinforcingMesh;
    struct IfcRelationship;
    struct IfcRelDecomposes;
    struct IfcRelAggregates;
    typedef NotImplemented IfcRelAssigns; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsToControl; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsTasks; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsToActor; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsToGroup; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsToProcess; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsToProduct; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsToProjectOrder; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssignsToResource; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociates; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesAppliedValue; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesApproval; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesClassification; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesConstraint; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesDocument; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesLibrary; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesMaterial; // (not currently used by Assimp)
    typedef NotImplemented IfcRelAssociatesProfileProperties; // (not currently used by Assimp)
    struct IfcRelConnects;
    typedef NotImplemented IfcRelConnectsElements; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsPathElements; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsPortToElement; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsPorts; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsStructuralActivity; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsStructuralElement; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsStructuralMember; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsWithEccentricity; // (not currently used by Assimp)
    typedef NotImplemented IfcRelConnectsWithRealizingElements; // (not currently used by Assimp)
    struct IfcRelContainedInSpatialStructure;
    typedef NotImplemented IfcRelCoversBldgElements; // (not currently used by Assimp)
    typedef NotImplemented IfcRelCoversSpaces; // (not currently used by Assimp)
    struct IfcRelDefines;
    struct IfcRelDefinesByProperties;
    typedef NotImplemented IfcRelDefinesByType; // (not currently used by Assimp)
    struct IfcRelFillsElement;
    typedef NotImplemented IfcRelFlowControlElements; // (not currently used by Assimp)
    typedef NotImplemented IfcRelInteractionRequirements; // (not currently used by Assimp)
    typedef NotImplemented IfcRelNests; // (not currently used by Assimp)
    typedef NotImplemented IfcRelOccupiesSpaces; // (not currently used by Assimp)
    struct IfcRelOverridesProperties;
    typedef NotImplemented IfcRelProjectsElement; // (not currently used by Assimp)
    typedef NotImplemented IfcRelReferencedInSpatialStructure; // (not currently used by Assimp)
    typedef NotImplemented IfcRelSchedulesCostItems; // (not currently used by Assimp)
    typedef NotImplemented IfcRelSequence; // (not currently used by Assimp)
    typedef NotImplemented IfcRelServicesBuildings; // (not currently used by Assimp)
    typedef NotImplemented IfcRelSpaceBoundary; // (not currently used by Assimp)
    struct IfcRelVoidsElement;
    typedef NotImplemented IfcRelaxation; // (not currently used by Assimp)
    struct IfcRepresentation;
    struct IfcRepresentationMap;
    struct IfcRevolvedAreaSolid;
    typedef NotImplemented IfcRibPlateProfileProperties; // (not currently used by Assimp)
    struct IfcRightCircularCone;
    struct IfcRightCircularCylinder;
    struct IfcRoof;
    struct IfcRoundedEdgeFeature;
    struct IfcRoundedRectangleProfileDef;
    struct IfcSIUnit;
    struct IfcSanitaryTerminalType;
    struct IfcScheduleTimeControl;
    typedef NotImplemented IfcSectionProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcSectionReinforcementProperties; // (not currently used by Assimp)
    struct IfcSectionedSpine;
    struct IfcSensorType;
    struct IfcServiceLife;
    typedef NotImplemented IfcServiceLifeFactor; // (not currently used by Assimp)
    typedef NotImplemented IfcShapeAspect; // (not currently used by Assimp)
    struct IfcShapeModel;
    struct IfcShapeRepresentation;
    struct IfcShellBasedSurfaceModel;
    struct IfcSite;
    struct IfcSlab;
    struct IfcSlabType;
    typedef NotImplemented IfcSlippageConnectionCondition; // (not currently used by Assimp)
    typedef NotImplemented IfcSoundProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcSoundValue; // (not currently used by Assimp)
    struct IfcSpace;
    struct IfcSpaceHeaterType;
    struct IfcSpaceProgram;
    typedef NotImplemented IfcSpaceThermalLoadProperties; // (not currently used by Assimp)
    struct IfcSpatialStructureElementType;
    struct IfcSpaceType;
    struct IfcSphere;
    struct IfcStackTerminalType;
    struct IfcStair;
    struct IfcStairFlight;
    struct IfcStairFlightType;
    struct IfcStructuralActivity;
    struct IfcStructuralAction;
    struct IfcStructuralAnalysisModel;
    struct IfcStructuralItem;
    struct IfcStructuralConnection;
    struct IfcStructuralCurveConnection;
    struct IfcStructuralMember;
    struct IfcStructuralCurveMember;
    struct IfcStructuralCurveMemberVarying;
    struct IfcStructuralLinearAction;
    struct IfcStructuralLinearActionVarying;
    typedef NotImplemented IfcStructuralLoad; // (not currently used by Assimp)
    struct IfcStructuralLoadGroup;
    typedef NotImplemented IfcStructuralLoadStatic; // (not currently used by Assimp)
    typedef NotImplemented IfcStructuralLoadLinearForce; // (not currently used by Assimp)
    typedef NotImplemented IfcStructuralLoadPlanarForce; // (not currently used by Assimp)
    typedef NotImplemented IfcStructuralLoadSingleDisplacement; // (not currently used by Assimp)
    typedef NotImplemented IfcStructuralLoadSingleDisplacementDistortion; // (not currently used by Assimp)
    typedef NotImplemented IfcStructuralLoadSingleForce; // (not currently used by Assimp)
    typedef NotImplemented IfcStructuralLoadSingleForceWarping; // (not currently used by Assimp)
    typedef NotImplemented IfcStructuralLoadTemperature; // (not currently used by Assimp)
    struct IfcStructuralPlanarAction;
    struct IfcStructuralPlanarActionVarying;
    struct IfcStructuralPointAction;
    struct IfcStructuralPointConnection;
    struct IfcStructuralReaction;
    struct IfcStructuralPointReaction;
    typedef NotImplemented IfcStructuralProfileProperties; // (not currently used by Assimp)
    struct IfcStructuralResultGroup;
    typedef NotImplemented IfcStructuralSteelProfileProperties; // (not currently used by Assimp)
    struct IfcStructuralSurfaceConnection;
    struct IfcStructuralSurfaceMember;
    struct IfcStructuralSurfaceMemberVarying;
    struct IfcStructuredDimensionCallout;
    struct IfcStyleModel;
    struct IfcStyledRepresentation;
    struct IfcSubContractResource;
    struct IfcSubedge;
    struct IfcSurfaceCurveSweptAreaSolid;
    struct IfcSweptSurface;
    struct IfcSurfaceOfLinearExtrusion;
    struct IfcSurfaceOfRevolution;
    struct IfcSurfaceStyle;
    typedef NotImplemented IfcSurfaceStyleLighting; // (not currently used by Assimp)
    typedef NotImplemented IfcSurfaceStyleRefraction; // (not currently used by Assimp)
    struct IfcSurfaceStyleShading;
    struct IfcSurfaceStyleRendering;
    struct IfcSurfaceStyleWithTextures;
    struct IfcSweptDiskSolid;
    struct IfcSwitchingDeviceType;
    typedef NotImplemented IfcSymbolStyle; // (not currently used by Assimp)
    struct IfcSystemFurnitureElementType;
    struct IfcTShapeProfileDef;
    typedef NotImplemented IfcTable; // (not currently used by Assimp)
    typedef NotImplemented IfcTableRow; // (not currently used by Assimp)
    struct IfcTankType;
    typedef NotImplemented IfcTelecomAddress; // (not currently used by Assimp)
    struct IfcTendon;
    struct IfcTendonAnchor;
    struct IfcTextLiteral;
    struct IfcTextLiteralWithExtent;
    typedef NotImplemented IfcTextStyle; // (not currently used by Assimp)
    typedef NotImplemented IfcTextStyleFontModel; // (not currently used by Assimp)
    typedef NotImplemented IfcTextStyleForDefinedFont; // (not currently used by Assimp)
    typedef NotImplemented IfcTextStyleTextModel; // (not currently used by Assimp)
    typedef NotImplemented IfcTextStyleWithBoxCharacteristics; // (not currently used by Assimp)
    typedef NotImplemented IfcTextureCoordinate; // (not currently used by Assimp)
    typedef NotImplemented IfcTextureCoordinateGenerator; // (not currently used by Assimp)
    typedef NotImplemented IfcTextureMap; // (not currently used by Assimp)
    typedef NotImplemented IfcTextureVertex; // (not currently used by Assimp)
    typedef NotImplemented IfcThermalMaterialProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcTimeSeriesReferenceRelationship; // (not currently used by Assimp)
    struct IfcTimeSeriesSchedule;
    typedef NotImplemented IfcTimeSeriesValue; // (not currently used by Assimp)
    struct IfcTopologyRepresentation;
    struct IfcTransformerType;
    struct IfcTransportElement;
    struct IfcTransportElementType;
    struct IfcTrapeziumProfileDef;
    struct IfcTrimmedCurve;
    struct IfcTubeBundleType;
    struct IfcTwoDirectionRepeatFactor;
    struct IfcUShapeProfileDef;
    struct IfcUnitAssignment;
    struct IfcUnitaryEquipmentType;
    struct IfcValveType;
    struct IfcVector;
    struct IfcVertex;
    typedef NotImplemented IfcVertexBasedTextureMap; // (not currently used by Assimp)
    struct IfcVertexLoop;
    struct IfcVertexPoint;
    struct IfcVibrationIsolatorType;
    struct IfcVirtualElement;
    typedef NotImplemented IfcVirtualGridIntersection; // (not currently used by Assimp)
    struct IfcWall;
    struct IfcWallStandardCase;
    struct IfcWallType;
    struct IfcWasteTerminalType;
    typedef NotImplemented IfcWaterProperties; // (not currently used by Assimp)
    struct IfcWindow;
    typedef NotImplemented IfcWindowLiningProperties; // (not currently used by Assimp)
    typedef NotImplemented IfcWindowPanelProperties; // (not currently used by Assimp)
    struct IfcWindowStyle;
    struct IfcWorkControl;
    struct IfcWorkPlan;
    struct IfcWorkSchedule;
    struct IfcZShapeProfileDef;
    struct IfcZone;



    // C++ wrapper for IfcRepresentationItem
    struct IfcRepresentationItem :  ObjectHelper<IfcRepresentationItem,0> { IfcRepresentationItem() : Object("IfcRepresentationItem") {}

    };

    // C++ wrapper for IfcGeometricRepresentationItem
    struct IfcGeometricRepresentationItem : IfcRepresentationItem, ObjectHelper<IfcGeometricRepresentationItem,0> { IfcGeometricRepresentationItem() : Object("IfcGeometricRepresentationItem") {}

    };

    // C++ wrapper for IfcCurve
    struct IfcCurve : IfcGeometricRepresentationItem, ObjectHelper<IfcCurve,0> { IfcCurve() : Object("IfcCurve") {}

    };

    // C++ wrapper for IfcBoundedCurve
    struct IfcBoundedCurve : IfcCurve, ObjectHelper<IfcBoundedCurve,0> { IfcBoundedCurve() : Object("IfcBoundedCurve") {}

    };

    // C++ wrapper for IfcCompositeCurve
    struct IfcCompositeCurve : IfcBoundedCurve, ObjectHelper<IfcCompositeCurve,2> { IfcCompositeCurve() : Object("IfcCompositeCurve") {}
        ListOf< Lazy< IfcCompositeCurveSegment >, 1, 0 > Segments;
        LOGICAL::Out SelfIntersect;
    };

    // C++ wrapper for Ifc2DCompositeCurve
    struct Ifc2DCompositeCurve : IfcCompositeCurve, ObjectHelper<Ifc2DCompositeCurve,0> { Ifc2DCompositeCurve() : Object("Ifc2DCompositeCurve") {}

    };

    // C++ wrapper for IfcRoot
    struct IfcRoot :  ObjectHelper<IfcRoot,4> { IfcRoot() : Object("IfcRoot") {}
        IfcGloballyUniqueId::Out GlobalId;
        Lazy< NotImplemented > OwnerHistory;
        Maybe< IfcLabel::Out > Name;
        Maybe< IfcText::Out > Description;
    };

    // C++ wrapper for IfcObjectDefinition
    struct IfcObjectDefinition : IfcRoot, ObjectHelper<IfcObjectDefinition,0> { IfcObjectDefinition() : Object("IfcObjectDefinition") {}

    };

    // C++ wrapper for IfcObject
    struct IfcObject : IfcObjectDefinition, ObjectHelper<IfcObject,1> { IfcObject() : Object("IfcObject") {}
        Maybe< IfcLabel::Out > ObjectType;
    };

    // C++ wrapper for IfcControl
    struct IfcControl : IfcObject, ObjectHelper<IfcControl,0> { IfcControl() : Object("IfcControl") {}

    };

    // C++ wrapper for IfcActionRequest
    struct IfcActionRequest : IfcControl, ObjectHelper<IfcActionRequest,1> { IfcActionRequest() : Object("IfcActionRequest") {}
        IfcIdentifier::Out RequestID;
    };

    // C++ wrapper for IfcActor
    struct IfcActor : IfcObject, ObjectHelper<IfcActor,1> { IfcActor() : Object("IfcActor") {}
        IfcActorSelect::Out TheActor;
    };

    // C++ wrapper for IfcTypeObject
    struct IfcTypeObject : IfcObjectDefinition, ObjectHelper<IfcTypeObject,2> { IfcTypeObject() : Object("IfcTypeObject") {}
        Maybe< IfcLabel::Out > ApplicableOccurrence;
        Maybe< ListOf< Lazy< IfcPropertySetDefinition >, 1, 0 > > HasPropertySets;
    };

    // C++ wrapper for IfcTypeProduct
    struct IfcTypeProduct : IfcTypeObject, ObjectHelper<IfcTypeProduct,2> { IfcTypeProduct() : Object("IfcTypeProduct") {}
        Maybe< ListOf< Lazy< IfcRepresentationMap >, 1, 0 > > RepresentationMaps;
        Maybe< IfcLabel::Out > Tag;
    };

    // C++ wrapper for IfcElementType
    struct IfcElementType : IfcTypeProduct, ObjectHelper<IfcElementType,1> { IfcElementType() : Object("IfcElementType") {}
        Maybe< IfcLabel::Out > ElementType;
    };

    // C++ wrapper for IfcDistributionElementType
    struct IfcDistributionElementType : IfcElementType, ObjectHelper<IfcDistributionElementType,0> { IfcDistributionElementType() : Object("IfcDistributionElementType") {}

    };

    // C++ wrapper for IfcDistributionControlElementType
    struct IfcDistributionControlElementType : IfcDistributionElementType, ObjectHelper<IfcDistributionControlElementType,0> { IfcDistributionControlElementType() : Object("IfcDistributionControlElementType") {}

    };

    // C++ wrapper for IfcActuatorType
    struct IfcActuatorType : IfcDistributionControlElementType, ObjectHelper<IfcActuatorType,1> { IfcActuatorType() : Object("IfcActuatorType") {}
        IfcActuatorTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcDistributionFlowElementType
    struct IfcDistributionFlowElementType : IfcDistributionElementType, ObjectHelper<IfcDistributionFlowElementType,0> { IfcDistributionFlowElementType() : Object("IfcDistributionFlowElementType") {}

    };

    // C++ wrapper for IfcFlowControllerType
    struct IfcFlowControllerType : IfcDistributionFlowElementType, ObjectHelper<IfcFlowControllerType,0> { IfcFlowControllerType() : Object("IfcFlowControllerType") {}

    };

    // C++ wrapper for IfcAirTerminalBoxType
    struct IfcAirTerminalBoxType : IfcFlowControllerType, ObjectHelper<IfcAirTerminalBoxType,1> { IfcAirTerminalBoxType() : Object("IfcAirTerminalBoxType") {}
        IfcAirTerminalBoxTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFlowTerminalType
    struct IfcFlowTerminalType : IfcDistributionFlowElementType, ObjectHelper<IfcFlowTerminalType,0> { IfcFlowTerminalType() : Object("IfcFlowTerminalType") {}

    };

    // C++ wrapper for IfcAirTerminalType
    struct IfcAirTerminalType : IfcFlowTerminalType, ObjectHelper<IfcAirTerminalType,1> { IfcAirTerminalType() : Object("IfcAirTerminalType") {}
        IfcAirTerminalTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcEnergyConversionDeviceType
    struct IfcEnergyConversionDeviceType : IfcDistributionFlowElementType, ObjectHelper<IfcEnergyConversionDeviceType,0> { IfcEnergyConversionDeviceType() : Object("IfcEnergyConversionDeviceType") {}

    };

    // C++ wrapper for IfcAirToAirHeatRecoveryType
    struct IfcAirToAirHeatRecoveryType : IfcEnergyConversionDeviceType, ObjectHelper<IfcAirToAirHeatRecoveryType,1> { IfcAirToAirHeatRecoveryType() : Object("IfcAirToAirHeatRecoveryType") {}
        IfcAirToAirHeatRecoveryTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcAlarmType
    struct IfcAlarmType : IfcDistributionControlElementType, ObjectHelper<IfcAlarmType,1> { IfcAlarmType() : Object("IfcAlarmType") {}
        IfcAlarmTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcDraughtingCallout
    struct IfcDraughtingCallout : IfcGeometricRepresentationItem, ObjectHelper<IfcDraughtingCallout,1> { IfcDraughtingCallout() : Object("IfcDraughtingCallout") {}
        ListOf< IfcDraughtingCalloutElement, 1, 0 >::Out Contents;
    };

    // C++ wrapper for IfcDimensionCurveDirectedCallout
    struct IfcDimensionCurveDirectedCallout : IfcDraughtingCallout, ObjectHelper<IfcDimensionCurveDirectedCallout,0> { IfcDimensionCurveDirectedCallout() : Object("IfcDimensionCurveDirectedCallout") {}

    };

    // C++ wrapper for IfcAngularDimension
    struct IfcAngularDimension : IfcDimensionCurveDirectedCallout, ObjectHelper<IfcAngularDimension,0> { IfcAngularDimension() : Object("IfcAngularDimension") {}

    };

    // C++ wrapper for IfcProduct
    struct IfcProduct : IfcObject, ObjectHelper<IfcProduct,2> { IfcProduct() : Object("IfcProduct") {}
        Maybe< Lazy< IfcObjectPlacement > > ObjectPlacement;
        Maybe< Lazy< IfcProductRepresentation > > Representation;
    };

    // C++ wrapper for IfcAnnotation
    struct IfcAnnotation : IfcProduct, ObjectHelper<IfcAnnotation,0> { IfcAnnotation() : Object("IfcAnnotation") {}

    };

    // C++ wrapper for IfcStyledItem
    struct IfcStyledItem : IfcRepresentationItem, ObjectHelper<IfcStyledItem,3> { IfcStyledItem() : Object("IfcStyledItem") {}
        Maybe< Lazy< IfcRepresentationItem > > Item;
        ListOf< Lazy< IfcPresentationStyleAssignment >, 1, 0 > Styles;
        Maybe< IfcLabel::Out > Name;
    };

    // C++ wrapper for IfcAnnotationOccurrence
    struct IfcAnnotationOccurrence : IfcStyledItem, ObjectHelper<IfcAnnotationOccurrence,0> { IfcAnnotationOccurrence() : Object("IfcAnnotationOccurrence") {}

    };

    // C++ wrapper for IfcAnnotationCurveOccurrence
    struct IfcAnnotationCurveOccurrence : IfcAnnotationOccurrence, ObjectHelper<IfcAnnotationCurveOccurrence,0> { IfcAnnotationCurveOccurrence() : Object("IfcAnnotationCurveOccurrence") {}

    };

    // C++ wrapper for IfcAnnotationFillArea
    struct IfcAnnotationFillArea : IfcGeometricRepresentationItem, ObjectHelper<IfcAnnotationFillArea,2> { IfcAnnotationFillArea() : Object("IfcAnnotationFillArea") {}
        Lazy< IfcCurve > OuterBoundary;
        Maybe< ListOf< Lazy< IfcCurve >, 1, 0 > > InnerBoundaries;
    };

    // C++ wrapper for IfcAnnotationFillAreaOccurrence
    struct IfcAnnotationFillAreaOccurrence : IfcAnnotationOccurrence, ObjectHelper<IfcAnnotationFillAreaOccurrence,2> { IfcAnnotationFillAreaOccurrence() : Object("IfcAnnotationFillAreaOccurrence") {}
        Maybe< Lazy< IfcPoint > > FillStyleTarget;
        Maybe< IfcGlobalOrLocalEnum::Out > GlobalOrLocal;
    };

    // C++ wrapper for IfcAnnotationSurface
    struct IfcAnnotationSurface : IfcGeometricRepresentationItem, ObjectHelper<IfcAnnotationSurface,2> { IfcAnnotationSurface() : Object("IfcAnnotationSurface") {}
        Lazy< IfcGeometricRepresentationItem > Item;
        Maybe< Lazy< NotImplemented > > TextureCoordinates;
    };

    // C++ wrapper for IfcAnnotationSurfaceOccurrence
    struct IfcAnnotationSurfaceOccurrence : IfcAnnotationOccurrence, ObjectHelper<IfcAnnotationSurfaceOccurrence,0> { IfcAnnotationSurfaceOccurrence() : Object("IfcAnnotationSurfaceOccurrence") {}

    };

    // C++ wrapper for IfcAnnotationSymbolOccurrence
    struct IfcAnnotationSymbolOccurrence : IfcAnnotationOccurrence, ObjectHelper<IfcAnnotationSymbolOccurrence,0> { IfcAnnotationSymbolOccurrence() : Object("IfcAnnotationSymbolOccurrence") {}

    };

    // C++ wrapper for IfcAnnotationTextOccurrence
    struct IfcAnnotationTextOccurrence : IfcAnnotationOccurrence, ObjectHelper<IfcAnnotationTextOccurrence,0> { IfcAnnotationTextOccurrence() : Object("IfcAnnotationTextOccurrence") {}

    };

    // C++ wrapper for IfcProfileDef
    struct IfcProfileDef :  ObjectHelper<IfcProfileDef,2> { IfcProfileDef() : Object("IfcProfileDef") {}
        IfcProfileTypeEnum::Out ProfileType;
        Maybe< IfcLabel::Out > ProfileName;
    };

    // C++ wrapper for IfcArbitraryClosedProfileDef
    struct IfcArbitraryClosedProfileDef : IfcProfileDef, ObjectHelper<IfcArbitraryClosedProfileDef,1> { IfcArbitraryClosedProfileDef() : Object("IfcArbitraryClosedProfileDef") {}
        Lazy< IfcCurve > OuterCurve;
    };

    // C++ wrapper for IfcArbitraryOpenProfileDef
    struct IfcArbitraryOpenProfileDef : IfcProfileDef, ObjectHelper<IfcArbitraryOpenProfileDef,1> { IfcArbitraryOpenProfileDef() : Object("IfcArbitraryOpenProfileDef") {}
        Lazy< IfcBoundedCurve > Curve;
    };

    // C++ wrapper for IfcArbitraryProfileDefWithVoids
    struct IfcArbitraryProfileDefWithVoids : IfcArbitraryClosedProfileDef, ObjectHelper<IfcArbitraryProfileDefWithVoids,1> { IfcArbitraryProfileDefWithVoids() : Object("IfcArbitraryProfileDefWithVoids") {}
        ListOf< Lazy< IfcCurve >, 1, 0 > InnerCurves;
    };

    // C++ wrapper for IfcGroup
    struct IfcGroup : IfcObject, ObjectHelper<IfcGroup,0> { IfcGroup() : Object("IfcGroup") {}

    };

    // C++ wrapper for IfcAsset
    struct IfcAsset : IfcGroup, ObjectHelper<IfcAsset,9> { IfcAsset() : Object("IfcAsset") {}
        IfcIdentifier::Out AssetID;
        Lazy< NotImplemented > OriginalValue;
        Lazy< NotImplemented > CurrentValue;
        Lazy< NotImplemented > TotalReplacementCost;
        IfcActorSelect::Out Owner;
        IfcActorSelect::Out User;
        Lazy< NotImplemented > ResponsiblePerson;
        Lazy< NotImplemented > IncorporationDate;
        Lazy< NotImplemented > DepreciatedValue;
    };

    // C++ wrapper for IfcParameterizedProfileDef
    struct IfcParameterizedProfileDef : IfcProfileDef, ObjectHelper<IfcParameterizedProfileDef,1> { IfcParameterizedProfileDef() : Object("IfcParameterizedProfileDef") {}
        Lazy< IfcAxis2Placement2D > Position;
    };

    // C++ wrapper for IfcIShapeProfileDef
    struct IfcIShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcIShapeProfileDef,5> { IfcIShapeProfileDef() : Object("IfcIShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out OverallWidth;
        IfcPositiveLengthMeasure::Out OverallDepth;
        IfcPositiveLengthMeasure::Out WebThickness;
        IfcPositiveLengthMeasure::Out FlangeThickness;
        Maybe< IfcPositiveLengthMeasure::Out > FilletRadius;
    };

    // C++ wrapper for IfcAsymmetricIShapeProfileDef
    struct IfcAsymmetricIShapeProfileDef : IfcIShapeProfileDef, ObjectHelper<IfcAsymmetricIShapeProfileDef,4> { IfcAsymmetricIShapeProfileDef() : Object("IfcAsymmetricIShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out TopFlangeWidth;
        Maybe< IfcPositiveLengthMeasure::Out > TopFlangeThickness;
        Maybe< IfcPositiveLengthMeasure::Out > TopFlangeFilletRadius;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInY;
    };

    // C++ wrapper for IfcPlacement
    struct IfcPlacement : IfcGeometricRepresentationItem, ObjectHelper<IfcPlacement,1> { IfcPlacement() : Object("IfcPlacement") {}
        Lazy< IfcCartesianPoint > Location;
    };

    // C++ wrapper for IfcAxis1Placement
    struct IfcAxis1Placement : IfcPlacement, ObjectHelper<IfcAxis1Placement,1> { IfcAxis1Placement() : Object("IfcAxis1Placement") {}
        Maybe< Lazy< IfcDirection > > Axis;
    };

    // C++ wrapper for IfcAxis2Placement2D
    struct IfcAxis2Placement2D : IfcPlacement, ObjectHelper<IfcAxis2Placement2D,1> { IfcAxis2Placement2D() : Object("IfcAxis2Placement2D") {}
        Maybe< Lazy< IfcDirection > > RefDirection;
    };

    // C++ wrapper for IfcAxis2Placement3D
    struct IfcAxis2Placement3D : IfcPlacement, ObjectHelper<IfcAxis2Placement3D,2> { IfcAxis2Placement3D() : Object("IfcAxis2Placement3D") {}
        Maybe< Lazy< IfcDirection > > Axis;
        Maybe< Lazy< IfcDirection > > RefDirection;
    };

    // C++ wrapper for IfcBSplineCurve
    struct IfcBSplineCurve : IfcBoundedCurve, ObjectHelper<IfcBSplineCurve,5> { IfcBSplineCurve() : Object("IfcBSplineCurve") {}
        INTEGER::Out Degree;
        ListOf< Lazy< IfcCartesianPoint >, 2, 0 > ControlPointsList;
        IfcBSplineCurveForm::Out CurveForm;
        LOGICAL::Out ClosedCurve;
        LOGICAL::Out SelfIntersect;
    };

    // C++ wrapper for IfcElement
    struct IfcElement : IfcProduct, ObjectHelper<IfcElement,1> { IfcElement() : Object("IfcElement") {}
        Maybe< IfcIdentifier::Out > Tag;
    };

    // C++ wrapper for IfcBuildingElement
    struct IfcBuildingElement : IfcElement, ObjectHelper<IfcBuildingElement,0> { IfcBuildingElement() : Object("IfcBuildingElement") {}

    };

    // C++ wrapper for IfcBeam
    struct IfcBeam : IfcBuildingElement, ObjectHelper<IfcBeam,0> { IfcBeam() : Object("IfcBeam") {}

    };

    // C++ wrapper for IfcBuildingElementType
    struct IfcBuildingElementType : IfcElementType, ObjectHelper<IfcBuildingElementType,0> { IfcBuildingElementType() : Object("IfcBuildingElementType") {}

    };

    // C++ wrapper for IfcBeamType
    struct IfcBeamType : IfcBuildingElementType, ObjectHelper<IfcBeamType,1> { IfcBeamType() : Object("IfcBeamType") {}
        IfcBeamTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcBezierCurve
    struct IfcBezierCurve : IfcBSplineCurve, ObjectHelper<IfcBezierCurve,0> { IfcBezierCurve() : Object("IfcBezierCurve") {}

    };

    // C++ wrapper for IfcCsgPrimitive3D
    struct IfcCsgPrimitive3D : IfcGeometricRepresentationItem, ObjectHelper<IfcCsgPrimitive3D,1> { IfcCsgPrimitive3D() : Object("IfcCsgPrimitive3D") {}
        Lazy< IfcAxis2Placement3D > Position;
    };

    // C++ wrapper for IfcBlock
    struct IfcBlock : IfcCsgPrimitive3D, ObjectHelper<IfcBlock,3> { IfcBlock() : Object("IfcBlock") {}
        IfcPositiveLengthMeasure::Out XLength;
        IfcPositiveLengthMeasure::Out YLength;
        IfcPositiveLengthMeasure::Out ZLength;
    };

    // C++ wrapper for IfcBoilerType
    struct IfcBoilerType : IfcEnergyConversionDeviceType, ObjectHelper<IfcBoilerType,1> { IfcBoilerType() : Object("IfcBoilerType") {}
        IfcBoilerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcBooleanResult
    struct IfcBooleanResult : IfcGeometricRepresentationItem, ObjectHelper<IfcBooleanResult,3> { IfcBooleanResult() : Object("IfcBooleanResult") {}
        IfcBooleanOperator::Out Operator;
        IfcBooleanOperand::Out FirstOperand;
        IfcBooleanOperand::Out SecondOperand;
    };

    // C++ wrapper for IfcBooleanClippingResult
    struct IfcBooleanClippingResult : IfcBooleanResult, ObjectHelper<IfcBooleanClippingResult,0> { IfcBooleanClippingResult() : Object("IfcBooleanClippingResult") {}

    };

    // C++ wrapper for IfcSurface
    struct IfcSurface : IfcGeometricRepresentationItem, ObjectHelper<IfcSurface,0> { IfcSurface() : Object("IfcSurface") {}

    };

    // C++ wrapper for IfcBoundedSurface
    struct IfcBoundedSurface : IfcSurface, ObjectHelper<IfcBoundedSurface,0> { IfcBoundedSurface() : Object("IfcBoundedSurface") {}

    };

    // C++ wrapper for IfcBoundingBox
    struct IfcBoundingBox : IfcGeometricRepresentationItem, ObjectHelper<IfcBoundingBox,4> { IfcBoundingBox() : Object("IfcBoundingBox") {}
        Lazy< IfcCartesianPoint > Corner;
        IfcPositiveLengthMeasure::Out XDim;
        IfcPositiveLengthMeasure::Out YDim;
        IfcPositiveLengthMeasure::Out ZDim;
    };

    // C++ wrapper for IfcHalfSpaceSolid
    struct IfcHalfSpaceSolid : IfcGeometricRepresentationItem, ObjectHelper<IfcHalfSpaceSolid,2> { IfcHalfSpaceSolid() : Object("IfcHalfSpaceSolid") {}
        Lazy< IfcSurface > BaseSurface;
        BOOLEAN::Out AgreementFlag;
    };

    // C++ wrapper for IfcBoxedHalfSpace
    struct IfcBoxedHalfSpace : IfcHalfSpaceSolid, ObjectHelper<IfcBoxedHalfSpace,1> { IfcBoxedHalfSpace() : Object("IfcBoxedHalfSpace") {}
        Lazy< IfcBoundingBox > Enclosure;
    };

    // C++ wrapper for IfcSpatialStructureElement
    struct IfcSpatialStructureElement : IfcProduct, ObjectHelper<IfcSpatialStructureElement,2> { IfcSpatialStructureElement() : Object("IfcSpatialStructureElement") {}
        Maybe< IfcLabel::Out > LongName;
        IfcElementCompositionEnum::Out CompositionType;
    };

    // C++ wrapper for IfcBuilding
    struct IfcBuilding : IfcSpatialStructureElement, ObjectHelper<IfcBuilding,3> { IfcBuilding() : Object("IfcBuilding") {}
        Maybe< IfcLengthMeasure::Out > ElevationOfRefHeight;
        Maybe< IfcLengthMeasure::Out > ElevationOfTerrain;
        Maybe< Lazy< NotImplemented > > BuildingAddress;
    };

    // C++ wrapper for IfcBuildingElementComponent
    struct IfcBuildingElementComponent : IfcBuildingElement, ObjectHelper<IfcBuildingElementComponent,0> { IfcBuildingElementComponent() : Object("IfcBuildingElementComponent") {}

    };

    // C++ wrapper for IfcBuildingElementPart
    struct IfcBuildingElementPart : IfcBuildingElementComponent, ObjectHelper<IfcBuildingElementPart,0> { IfcBuildingElementPart() : Object("IfcBuildingElementPart") {}

    };

    // C++ wrapper for IfcBuildingElementProxy
    struct IfcBuildingElementProxy : IfcBuildingElement, ObjectHelper<IfcBuildingElementProxy,1> { IfcBuildingElementProxy() : Object("IfcBuildingElementProxy") {}
        Maybe< IfcElementCompositionEnum::Out > CompositionType;
    };

    // C++ wrapper for IfcBuildingElementProxyType
    struct IfcBuildingElementProxyType : IfcBuildingElementType, ObjectHelper<IfcBuildingElementProxyType,1> { IfcBuildingElementProxyType() : Object("IfcBuildingElementProxyType") {}
        IfcBuildingElementProxyTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcBuildingStorey
    struct IfcBuildingStorey : IfcSpatialStructureElement, ObjectHelper<IfcBuildingStorey,1> { IfcBuildingStorey() : Object("IfcBuildingStorey") {}
        Maybe< IfcLengthMeasure::Out > Elevation;
    };

    // C++ wrapper for IfcCShapeProfileDef
    struct IfcCShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcCShapeProfileDef,6> { IfcCShapeProfileDef() : Object("IfcCShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out Depth;
        IfcPositiveLengthMeasure::Out Width;
        IfcPositiveLengthMeasure::Out WallThickness;
        IfcPositiveLengthMeasure::Out Girth;
        Maybe< IfcPositiveLengthMeasure::Out > InternalFilletRadius;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInX;
    };

    // C++ wrapper for IfcFlowFittingType
    struct IfcFlowFittingType : IfcDistributionFlowElementType, ObjectHelper<IfcFlowFittingType,0> { IfcFlowFittingType() : Object("IfcFlowFittingType") {}

    };

    // C++ wrapper for IfcCableCarrierFittingType
    struct IfcCableCarrierFittingType : IfcFlowFittingType, ObjectHelper<IfcCableCarrierFittingType,1> { IfcCableCarrierFittingType() : Object("IfcCableCarrierFittingType") {}
        IfcCableCarrierFittingTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFlowSegmentType
    struct IfcFlowSegmentType : IfcDistributionFlowElementType, ObjectHelper<IfcFlowSegmentType,0> { IfcFlowSegmentType() : Object("IfcFlowSegmentType") {}

    };

    // C++ wrapper for IfcCableCarrierSegmentType
    struct IfcCableCarrierSegmentType : IfcFlowSegmentType, ObjectHelper<IfcCableCarrierSegmentType,1> { IfcCableCarrierSegmentType() : Object("IfcCableCarrierSegmentType") {}
        IfcCableCarrierSegmentTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCableSegmentType
    struct IfcCableSegmentType : IfcFlowSegmentType, ObjectHelper<IfcCableSegmentType,1> { IfcCableSegmentType() : Object("IfcCableSegmentType") {}
        IfcCableSegmentTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcPoint
    struct IfcPoint : IfcGeometricRepresentationItem, ObjectHelper<IfcPoint,0> { IfcPoint() : Object("IfcPoint") {}

    };

    // C++ wrapper for IfcCartesianPoint
    struct IfcCartesianPoint : IfcPoint, ObjectHelper<IfcCartesianPoint,1> { IfcCartesianPoint() : Object("IfcCartesianPoint") {}
        ListOf< IfcLengthMeasure, 1, 3 >::Out Coordinates;
    };

    // C++ wrapper for IfcCartesianTransformationOperator
    struct IfcCartesianTransformationOperator : IfcGeometricRepresentationItem, ObjectHelper<IfcCartesianTransformationOperator,4> { IfcCartesianTransformationOperator() : Object("IfcCartesianTransformationOperator") {}
        Maybe< Lazy< IfcDirection > > Axis1;
        Maybe< Lazy< IfcDirection > > Axis2;
        Lazy< IfcCartesianPoint > LocalOrigin;
        Maybe< REAL::Out > Scale;
    };

    // C++ wrapper for IfcCartesianTransformationOperator2D
    struct IfcCartesianTransformationOperator2D : IfcCartesianTransformationOperator, ObjectHelper<IfcCartesianTransformationOperator2D,0> { IfcCartesianTransformationOperator2D() : Object("IfcCartesianTransformationOperator2D") {}

    };

    // C++ wrapper for IfcCartesianTransformationOperator2DnonUniform
    struct IfcCartesianTransformationOperator2DnonUniform : IfcCartesianTransformationOperator2D, ObjectHelper<IfcCartesianTransformationOperator2DnonUniform,1> { IfcCartesianTransformationOperator2DnonUniform() : Object("IfcCartesianTransformationOperator2DnonUniform") {}
        Maybe< REAL::Out > Scale2;
    };

    // C++ wrapper for IfcCartesianTransformationOperator3D
    struct IfcCartesianTransformationOperator3D : IfcCartesianTransformationOperator, ObjectHelper<IfcCartesianTransformationOperator3D,1> { IfcCartesianTransformationOperator3D() : Object("IfcCartesianTransformationOperator3D") {}
        Maybe< Lazy< IfcDirection > > Axis3;
    };

    // C++ wrapper for IfcCartesianTransformationOperator3DnonUniform
    struct IfcCartesianTransformationOperator3DnonUniform : IfcCartesianTransformationOperator3D, ObjectHelper<IfcCartesianTransformationOperator3DnonUniform,2> { IfcCartesianTransformationOperator3DnonUniform() : Object("IfcCartesianTransformationOperator3DnonUniform") {}
        Maybe< REAL::Out > Scale2;
        Maybe< REAL::Out > Scale3;
    };

    // C++ wrapper for IfcCenterLineProfileDef
    struct IfcCenterLineProfileDef : IfcArbitraryOpenProfileDef, ObjectHelper<IfcCenterLineProfileDef,1> { IfcCenterLineProfileDef() : Object("IfcCenterLineProfileDef") {}
        IfcPositiveLengthMeasure::Out Thickness;
    };

    // C++ wrapper for IfcFeatureElement
    struct IfcFeatureElement : IfcElement, ObjectHelper<IfcFeatureElement,0> { IfcFeatureElement() : Object("IfcFeatureElement") {}

    };

    // C++ wrapper for IfcFeatureElementSubtraction
    struct IfcFeatureElementSubtraction : IfcFeatureElement, ObjectHelper<IfcFeatureElementSubtraction,0> { IfcFeatureElementSubtraction() : Object("IfcFeatureElementSubtraction") {}

    };

    // C++ wrapper for IfcEdgeFeature
    struct IfcEdgeFeature : IfcFeatureElementSubtraction, ObjectHelper<IfcEdgeFeature,1> { IfcEdgeFeature() : Object("IfcEdgeFeature") {}
        Maybe< IfcPositiveLengthMeasure::Out > FeatureLength;
    };

    // C++ wrapper for IfcChamferEdgeFeature
    struct IfcChamferEdgeFeature : IfcEdgeFeature, ObjectHelper<IfcChamferEdgeFeature,2> { IfcChamferEdgeFeature() : Object("IfcChamferEdgeFeature") {}
        Maybe< IfcPositiveLengthMeasure::Out > Width;
        Maybe< IfcPositiveLengthMeasure::Out > Height;
    };

    // C++ wrapper for IfcChillerType
    struct IfcChillerType : IfcEnergyConversionDeviceType, ObjectHelper<IfcChillerType,1> { IfcChillerType() : Object("IfcChillerType") {}
        IfcChillerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcConic
    struct IfcConic : IfcCurve, ObjectHelper<IfcConic,1> { IfcConic() : Object("IfcConic") {}
        IfcAxis2Placement::Out Position;
    };

    // C++ wrapper for IfcCircle
    struct IfcCircle : IfcConic, ObjectHelper<IfcCircle,1> { IfcCircle() : Object("IfcCircle") {}
        IfcPositiveLengthMeasure::Out Radius;
    };

    // C++ wrapper for IfcCircleProfileDef
    struct IfcCircleProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcCircleProfileDef,1> { IfcCircleProfileDef() : Object("IfcCircleProfileDef") {}
        IfcPositiveLengthMeasure::Out Radius;
    };

    // C++ wrapper for IfcCircleHollowProfileDef
    struct IfcCircleHollowProfileDef : IfcCircleProfileDef, ObjectHelper<IfcCircleHollowProfileDef,1> { IfcCircleHollowProfileDef() : Object("IfcCircleHollowProfileDef") {}
        IfcPositiveLengthMeasure::Out WallThickness;
    };

    // C++ wrapper for IfcTopologicalRepresentationItem
    struct IfcTopologicalRepresentationItem : IfcRepresentationItem, ObjectHelper<IfcTopologicalRepresentationItem,0> { IfcTopologicalRepresentationItem() : Object("IfcTopologicalRepresentationItem") {}

    };

    // C++ wrapper for IfcConnectedFaceSet
    struct IfcConnectedFaceSet : IfcTopologicalRepresentationItem, ObjectHelper<IfcConnectedFaceSet,1> { IfcConnectedFaceSet() : Object("IfcConnectedFaceSet") {}
        ListOf< Lazy< IfcFace >, 1, 0 > CfsFaces;
    };

    // C++ wrapper for IfcClosedShell
    struct IfcClosedShell : IfcConnectedFaceSet, ObjectHelper<IfcClosedShell,0> { IfcClosedShell() : Object("IfcClosedShell") {}

    };

    // C++ wrapper for IfcCoilType
    struct IfcCoilType : IfcEnergyConversionDeviceType, ObjectHelper<IfcCoilType,1> { IfcCoilType() : Object("IfcCoilType") {}
        IfcCoilTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcColourSpecification
    struct IfcColourSpecification :  ObjectHelper<IfcColourSpecification,1> { IfcColourSpecification() : Object("IfcColourSpecification") {}
        Maybe< IfcLabel::Out > Name;
    };

    // C++ wrapper for IfcColourRgb
    struct IfcColourRgb : IfcColourSpecification, ObjectHelper<IfcColourRgb,3> { IfcColourRgb() : Object("IfcColourRgb") {}
        IfcNormalisedRatioMeasure::Out Red;
        IfcNormalisedRatioMeasure::Out Green;
        IfcNormalisedRatioMeasure::Out Blue;
    };

    // C++ wrapper for IfcColumn
    struct IfcColumn : IfcBuildingElement, ObjectHelper<IfcColumn,0> { IfcColumn() : Object("IfcColumn") {}

    };

    // C++ wrapper for IfcColumnType
    struct IfcColumnType : IfcBuildingElementType, ObjectHelper<IfcColumnType,1> { IfcColumnType() : Object("IfcColumnType") {}
        IfcColumnTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcProperty
    struct IfcProperty :  ObjectHelper<IfcProperty,2> { IfcProperty() : Object("IfcProperty") {}
        IfcIdentifier::Out Name;
        Maybe< IfcText::Out > Description;
    };

    // C++ wrapper for IfcComplexProperty
    struct IfcComplexProperty : IfcProperty, ObjectHelper<IfcComplexProperty,2> { IfcComplexProperty() : Object("IfcComplexProperty") {}
        IfcIdentifier::Out UsageName;
        ListOf< Lazy< IfcProperty >, 1, 0 > HasProperties;
    };

    // C++ wrapper for IfcCompositeCurveSegment
    struct IfcCompositeCurveSegment : IfcGeometricRepresentationItem, ObjectHelper<IfcCompositeCurveSegment,3> { IfcCompositeCurveSegment() : Object("IfcCompositeCurveSegment") {}
        IfcTransitionCode::Out Transition;
        BOOLEAN::Out SameSense;
        Lazy< IfcCurve > ParentCurve;
    };

    // C++ wrapper for IfcCompositeProfileDef
    struct IfcCompositeProfileDef : IfcProfileDef, ObjectHelper<IfcCompositeProfileDef,2> { IfcCompositeProfileDef() : Object("IfcCompositeProfileDef") {}
        ListOf< Lazy< IfcProfileDef >, 2, 0 > Profiles;
        Maybe< IfcLabel::Out > Label;
    };

    // C++ wrapper for IfcFlowMovingDeviceType
    struct IfcFlowMovingDeviceType : IfcDistributionFlowElementType, ObjectHelper<IfcFlowMovingDeviceType,0> { IfcFlowMovingDeviceType() : Object("IfcFlowMovingDeviceType") {}

    };

    // C++ wrapper for IfcCompressorType
    struct IfcCompressorType : IfcFlowMovingDeviceType, ObjectHelper<IfcCompressorType,1> { IfcCompressorType() : Object("IfcCompressorType") {}
        IfcCompressorTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCondenserType
    struct IfcCondenserType : IfcEnergyConversionDeviceType, ObjectHelper<IfcCondenserType,1> { IfcCondenserType() : Object("IfcCondenserType") {}
        IfcCondenserTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCondition
    struct IfcCondition : IfcGroup, ObjectHelper<IfcCondition,0> { IfcCondition() : Object("IfcCondition") {}

    };

    // C++ wrapper for IfcConditionCriterion
    struct IfcConditionCriterion : IfcControl, ObjectHelper<IfcConditionCriterion,2> { IfcConditionCriterion() : Object("IfcConditionCriterion") {}
        IfcConditionCriterionSelect::Out Criterion;
        IfcDateTimeSelect::Out CriterionDateTime;
    };

    // C++ wrapper for IfcResource
    struct IfcResource : IfcObject, ObjectHelper<IfcResource,0> { IfcResource() : Object("IfcResource") {}

    };

    // C++ wrapper for IfcConstructionResource
    struct IfcConstructionResource : IfcResource, ObjectHelper<IfcConstructionResource,4> { IfcConstructionResource() : Object("IfcConstructionResource") {}
        Maybe< IfcIdentifier::Out > ResourceIdentifier;
        Maybe< IfcLabel::Out > ResourceGroup;
        Maybe< IfcResourceConsumptionEnum::Out > ResourceConsumption;
        Maybe< Lazy< IfcMeasureWithUnit > > BaseQuantity;
    };

    // C++ wrapper for IfcConstructionEquipmentResource
    struct IfcConstructionEquipmentResource : IfcConstructionResource, ObjectHelper<IfcConstructionEquipmentResource,0> { IfcConstructionEquipmentResource() : Object("IfcConstructionEquipmentResource") {}

    };

    // C++ wrapper for IfcConstructionMaterialResource
    struct IfcConstructionMaterialResource : IfcConstructionResource, ObjectHelper<IfcConstructionMaterialResource,2> { IfcConstructionMaterialResource() : Object("IfcConstructionMaterialResource") {}
        Maybe< ListOf< IfcActorSelect, 1, 0 >::Out > Suppliers;
        Maybe< IfcRatioMeasure::Out > UsageRatio;
    };

    // C++ wrapper for IfcConstructionProductResource
    struct IfcConstructionProductResource : IfcConstructionResource, ObjectHelper<IfcConstructionProductResource,0> { IfcConstructionProductResource() : Object("IfcConstructionProductResource") {}

    };

    // C++ wrapper for IfcNamedUnit
    struct IfcNamedUnit :  ObjectHelper<IfcNamedUnit,2> { IfcNamedUnit() : Object("IfcNamedUnit") {}
        Lazy< NotImplemented > Dimensions;
        IfcUnitEnum::Out UnitType;
    };

    // C++ wrapper for IfcContextDependentUnit
    struct IfcContextDependentUnit : IfcNamedUnit, ObjectHelper<IfcContextDependentUnit,1> { IfcContextDependentUnit() : Object("IfcContextDependentUnit") {}
        IfcLabel::Out Name;
    };

    // C++ wrapper for IfcControllerType
    struct IfcControllerType : IfcDistributionControlElementType, ObjectHelper<IfcControllerType,1> { IfcControllerType() : Object("IfcControllerType") {}
        IfcControllerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcConversionBasedUnit
    struct IfcConversionBasedUnit : IfcNamedUnit, ObjectHelper<IfcConversionBasedUnit,2> { IfcConversionBasedUnit() : Object("IfcConversionBasedUnit") {}
        IfcLabel::Out Name;
        Lazy< IfcMeasureWithUnit > ConversionFactor;
    };

    // C++ wrapper for IfcCooledBeamType
    struct IfcCooledBeamType : IfcEnergyConversionDeviceType, ObjectHelper<IfcCooledBeamType,1> { IfcCooledBeamType() : Object("IfcCooledBeamType") {}
        IfcCooledBeamTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCoolingTowerType
    struct IfcCoolingTowerType : IfcEnergyConversionDeviceType, ObjectHelper<IfcCoolingTowerType,1> { IfcCoolingTowerType() : Object("IfcCoolingTowerType") {}
        IfcCoolingTowerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCostItem
    struct IfcCostItem : IfcControl, ObjectHelper<IfcCostItem,0> { IfcCostItem() : Object("IfcCostItem") {}

    };

    // C++ wrapper for IfcCostSchedule
    struct IfcCostSchedule : IfcControl, ObjectHelper<IfcCostSchedule,8> { IfcCostSchedule() : Object("IfcCostSchedule") {}
        Maybe< IfcActorSelect::Out > SubmittedBy;
        Maybe< IfcActorSelect::Out > PreparedBy;
        Maybe< IfcDateTimeSelect::Out > SubmittedOn;
        Maybe< IfcLabel::Out > Status;
        Maybe< ListOf< IfcActorSelect, 1, 0 >::Out > TargetUsers;
        Maybe< IfcDateTimeSelect::Out > UpdateDate;
        IfcIdentifier::Out ID;
        IfcCostScheduleTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCovering
    struct IfcCovering : IfcBuildingElement, ObjectHelper<IfcCovering,1> { IfcCovering() : Object("IfcCovering") {}
        Maybe< IfcCoveringTypeEnum::Out > PredefinedType;
    };

    // C++ wrapper for IfcCoveringType
    struct IfcCoveringType : IfcBuildingElementType, ObjectHelper<IfcCoveringType,1> { IfcCoveringType() : Object("IfcCoveringType") {}
        IfcCoveringTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCraneRailAShapeProfileDef
    struct IfcCraneRailAShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcCraneRailAShapeProfileDef,12> { IfcCraneRailAShapeProfileDef() : Object("IfcCraneRailAShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out OverallHeight;
        IfcPositiveLengthMeasure::Out BaseWidth2;
        Maybe< IfcPositiveLengthMeasure::Out > Radius;
        IfcPositiveLengthMeasure::Out HeadWidth;
        IfcPositiveLengthMeasure::Out HeadDepth2;
        IfcPositiveLengthMeasure::Out HeadDepth3;
        IfcPositiveLengthMeasure::Out WebThickness;
        IfcPositiveLengthMeasure::Out BaseWidth4;
        IfcPositiveLengthMeasure::Out BaseDepth1;
        IfcPositiveLengthMeasure::Out BaseDepth2;
        IfcPositiveLengthMeasure::Out BaseDepth3;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInY;
    };

    // C++ wrapper for IfcCraneRailFShapeProfileDef
    struct IfcCraneRailFShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcCraneRailFShapeProfileDef,9> { IfcCraneRailFShapeProfileDef() : Object("IfcCraneRailFShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out OverallHeight;
        IfcPositiveLengthMeasure::Out HeadWidth;
        Maybe< IfcPositiveLengthMeasure::Out > Radius;
        IfcPositiveLengthMeasure::Out HeadDepth2;
        IfcPositiveLengthMeasure::Out HeadDepth3;
        IfcPositiveLengthMeasure::Out WebThickness;
        IfcPositiveLengthMeasure::Out BaseDepth1;
        IfcPositiveLengthMeasure::Out BaseDepth2;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInY;
    };

    // C++ wrapper for IfcCrewResource
    struct IfcCrewResource : IfcConstructionResource, ObjectHelper<IfcCrewResource,0> { IfcCrewResource() : Object("IfcCrewResource") {}

    };

    // C++ wrapper for IfcSolidModel
    struct IfcSolidModel : IfcGeometricRepresentationItem, ObjectHelper<IfcSolidModel,0> { IfcSolidModel() : Object("IfcSolidModel") {}

    };

    // C++ wrapper for IfcCsgSolid
    struct IfcCsgSolid : IfcSolidModel, ObjectHelper<IfcCsgSolid,1> { IfcCsgSolid() : Object("IfcCsgSolid") {}
        IfcCsgSelect::Out TreeRootExpression;
    };

    // C++ wrapper for IfcCurtainWall
    struct IfcCurtainWall : IfcBuildingElement, ObjectHelper<IfcCurtainWall,0> { IfcCurtainWall() : Object("IfcCurtainWall") {}

    };

    // C++ wrapper for IfcCurtainWallType
    struct IfcCurtainWallType : IfcBuildingElementType, ObjectHelper<IfcCurtainWallType,1> { IfcCurtainWallType() : Object("IfcCurtainWallType") {}
        IfcCurtainWallTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcCurveBoundedPlane
    struct IfcCurveBoundedPlane : IfcBoundedSurface, ObjectHelper<IfcCurveBoundedPlane,3> { IfcCurveBoundedPlane() : Object("IfcCurveBoundedPlane") {}
        Lazy< IfcPlane > BasisSurface;
        Lazy< IfcCurve > OuterBoundary;
        ListOf< Lazy< IfcCurve >, 0, 0 > InnerBoundaries;
    };

    // C++ wrapper for IfcPresentationStyle
    struct IfcPresentationStyle :  ObjectHelper<IfcPresentationStyle,1> { IfcPresentationStyle() : Object("IfcPresentationStyle") {}
        Maybe< IfcLabel::Out > Name;
    };

    // C++ wrapper for IfcDamperType
    struct IfcDamperType : IfcFlowControllerType, ObjectHelper<IfcDamperType,1> { IfcDamperType() : Object("IfcDamperType") {}
        IfcDamperTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcDefinedSymbol
    struct IfcDefinedSymbol : IfcGeometricRepresentationItem, ObjectHelper<IfcDefinedSymbol,2> { IfcDefinedSymbol() : Object("IfcDefinedSymbol") {}
        IfcDefinedSymbolSelect::Out Definition;
        Lazy< IfcCartesianTransformationOperator2D > Target;
    };

    // C++ wrapper for IfcDerivedProfileDef
    struct IfcDerivedProfileDef : IfcProfileDef, ObjectHelper<IfcDerivedProfileDef,3> { IfcDerivedProfileDef() : Object("IfcDerivedProfileDef") {}
        Lazy< IfcProfileDef > ParentProfile;
        Lazy< IfcCartesianTransformationOperator2D > Operator;
        Maybe< IfcLabel::Out > Label;
    };

    // C++ wrapper for IfcDiameterDimension
    struct IfcDiameterDimension : IfcDimensionCurveDirectedCallout, ObjectHelper<IfcDiameterDimension,0> { IfcDiameterDimension() : Object("IfcDiameterDimension") {}

    };

    // C++ wrapper for IfcDimensionCurve
    struct IfcDimensionCurve : IfcAnnotationCurveOccurrence, ObjectHelper<IfcDimensionCurve,0> { IfcDimensionCurve() : Object("IfcDimensionCurve") {}

    };

    // C++ wrapper for IfcTerminatorSymbol
    struct IfcTerminatorSymbol : IfcAnnotationSymbolOccurrence, ObjectHelper<IfcTerminatorSymbol,1> { IfcTerminatorSymbol() : Object("IfcTerminatorSymbol") {}
        Lazy< IfcAnnotationCurveOccurrence > AnnotatedCurve;
    };

    // C++ wrapper for IfcDimensionCurveTerminator
    struct IfcDimensionCurveTerminator : IfcTerminatorSymbol, ObjectHelper<IfcDimensionCurveTerminator,1> { IfcDimensionCurveTerminator() : Object("IfcDimensionCurveTerminator") {}
        IfcDimensionExtentUsage::Out Role;
    };

    // C++ wrapper for IfcDirection
    struct IfcDirection : IfcGeometricRepresentationItem, ObjectHelper<IfcDirection,1> { IfcDirection() : Object("IfcDirection") {}
        ListOf< REAL, 2, 3 >::Out DirectionRatios;
    };

    // C++ wrapper for IfcElementComponent
    struct IfcElementComponent : IfcElement, ObjectHelper<IfcElementComponent,0> { IfcElementComponent() : Object("IfcElementComponent") {}

    };

    // C++ wrapper for IfcDiscreteAccessory
    struct IfcDiscreteAccessory : IfcElementComponent, ObjectHelper<IfcDiscreteAccessory,0> { IfcDiscreteAccessory() : Object("IfcDiscreteAccessory") {}

    };

    // C++ wrapper for IfcElementComponentType
    struct IfcElementComponentType : IfcElementType, ObjectHelper<IfcElementComponentType,0> { IfcElementComponentType() : Object("IfcElementComponentType") {}

    };

    // C++ wrapper for IfcDiscreteAccessoryType
    struct IfcDiscreteAccessoryType : IfcElementComponentType, ObjectHelper<IfcDiscreteAccessoryType,0> { IfcDiscreteAccessoryType() : Object("IfcDiscreteAccessoryType") {}

    };

    // C++ wrapper for IfcDistributionElement
    struct IfcDistributionElement : IfcElement, ObjectHelper<IfcDistributionElement,0> { IfcDistributionElement() : Object("IfcDistributionElement") {}

    };

    // C++ wrapper for IfcDistributionFlowElement
    struct IfcDistributionFlowElement : IfcDistributionElement, ObjectHelper<IfcDistributionFlowElement,0> { IfcDistributionFlowElement() : Object("IfcDistributionFlowElement") {}

    };

    // C++ wrapper for IfcDistributionChamberElement
    struct IfcDistributionChamberElement : IfcDistributionFlowElement, ObjectHelper<IfcDistributionChamberElement,0> { IfcDistributionChamberElement() : Object("IfcDistributionChamberElement") {}

    };

    // C++ wrapper for IfcDistributionChamberElementType
    struct IfcDistributionChamberElementType : IfcDistributionFlowElementType, ObjectHelper<IfcDistributionChamberElementType,1> { IfcDistributionChamberElementType() : Object("IfcDistributionChamberElementType") {}
        IfcDistributionChamberElementTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcDistributionControlElement
    struct IfcDistributionControlElement : IfcDistributionElement, ObjectHelper<IfcDistributionControlElement,1> { IfcDistributionControlElement() : Object("IfcDistributionControlElement") {}
        Maybe< IfcIdentifier::Out > ControlElementId;
    };

    // C++ wrapper for IfcPort
    struct IfcPort : IfcProduct, ObjectHelper<IfcPort,0> { IfcPort() : Object("IfcPort") {}

    };

    // C++ wrapper for IfcDistributionPort
    struct IfcDistributionPort : IfcPort, ObjectHelper<IfcDistributionPort,1> { IfcDistributionPort() : Object("IfcDistributionPort") {}
        Maybe< IfcFlowDirectionEnum::Out > FlowDirection;
    };

    // C++ wrapper for IfcDoor
    struct IfcDoor : IfcBuildingElement, ObjectHelper<IfcDoor,2> { IfcDoor() : Object("IfcDoor") {}
        Maybe< IfcPositiveLengthMeasure::Out > OverallHeight;
        Maybe< IfcPositiveLengthMeasure::Out > OverallWidth;
    };

    // C++ wrapper for IfcPropertyDefinition
    struct IfcPropertyDefinition : IfcRoot, ObjectHelper<IfcPropertyDefinition,0> { IfcPropertyDefinition() : Object("IfcPropertyDefinition") {}

    };

    // C++ wrapper for IfcPropertySetDefinition
    struct IfcPropertySetDefinition : IfcPropertyDefinition, ObjectHelper<IfcPropertySetDefinition,0> { IfcPropertySetDefinition() : Object("IfcPropertySetDefinition") {}

    };

    // C++ wrapper for IfcDoorStyle
    struct IfcDoorStyle : IfcTypeProduct, ObjectHelper<IfcDoorStyle,4> { IfcDoorStyle() : Object("IfcDoorStyle") {}
        IfcDoorStyleOperationEnum::Out OperationType;
        IfcDoorStyleConstructionEnum::Out ConstructionType;
        BOOLEAN::Out ParameterTakesPrecedence;
        BOOLEAN::Out Sizeable;
    };

    // C++ wrapper for IfcDuctFittingType
    struct IfcDuctFittingType : IfcFlowFittingType, ObjectHelper<IfcDuctFittingType,1> { IfcDuctFittingType() : Object("IfcDuctFittingType") {}
        IfcDuctFittingTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcDuctSegmentType
    struct IfcDuctSegmentType : IfcFlowSegmentType, ObjectHelper<IfcDuctSegmentType,1> { IfcDuctSegmentType() : Object("IfcDuctSegmentType") {}
        IfcDuctSegmentTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFlowTreatmentDeviceType
    struct IfcFlowTreatmentDeviceType : IfcDistributionFlowElementType, ObjectHelper<IfcFlowTreatmentDeviceType,0> { IfcFlowTreatmentDeviceType() : Object("IfcFlowTreatmentDeviceType") {}

    };

    // C++ wrapper for IfcDuctSilencerType
    struct IfcDuctSilencerType : IfcFlowTreatmentDeviceType, ObjectHelper<IfcDuctSilencerType,1> { IfcDuctSilencerType() : Object("IfcDuctSilencerType") {}
        IfcDuctSilencerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcEdge
    struct IfcEdge : IfcTopologicalRepresentationItem, ObjectHelper<IfcEdge,2> { IfcEdge() : Object("IfcEdge") {}
        Lazy< IfcVertex > EdgeStart;
        Lazy< IfcVertex > EdgeEnd;
    };

    // C++ wrapper for IfcEdgeCurve
    struct IfcEdgeCurve : IfcEdge, ObjectHelper<IfcEdgeCurve,2> { IfcEdgeCurve() : Object("IfcEdgeCurve") {}
        Lazy< IfcCurve > EdgeGeometry;
        BOOLEAN::Out SameSense;
    };

    // C++ wrapper for IfcLoop
    struct IfcLoop : IfcTopologicalRepresentationItem, ObjectHelper<IfcLoop,0> { IfcLoop() : Object("IfcLoop") {}

    };

    // C++ wrapper for IfcEdgeLoop
    struct IfcEdgeLoop : IfcLoop, ObjectHelper<IfcEdgeLoop,1> { IfcEdgeLoop() : Object("IfcEdgeLoop") {}
        ListOf< Lazy< IfcOrientedEdge >, 1, 0 > EdgeList;
    };

    // C++ wrapper for IfcElectricApplianceType
    struct IfcElectricApplianceType : IfcFlowTerminalType, ObjectHelper<IfcElectricApplianceType,1> { IfcElectricApplianceType() : Object("IfcElectricApplianceType") {}
        IfcElectricApplianceTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFlowController
    struct IfcFlowController : IfcDistributionFlowElement, ObjectHelper<IfcFlowController,0> { IfcFlowController() : Object("IfcFlowController") {}

    };

    // C++ wrapper for IfcElectricDistributionPoint
    struct IfcElectricDistributionPoint : IfcFlowController, ObjectHelper<IfcElectricDistributionPoint,2> { IfcElectricDistributionPoint() : Object("IfcElectricDistributionPoint") {}
        IfcElectricDistributionPointFunctionEnum::Out DistributionPointFunction;
        Maybe< IfcLabel::Out > UserDefinedFunction;
    };

    // C++ wrapper for IfcFlowStorageDeviceType
    struct IfcFlowStorageDeviceType : IfcDistributionFlowElementType, ObjectHelper<IfcFlowStorageDeviceType,0> { IfcFlowStorageDeviceType() : Object("IfcFlowStorageDeviceType") {}

    };

    // C++ wrapper for IfcElectricFlowStorageDeviceType
    struct IfcElectricFlowStorageDeviceType : IfcFlowStorageDeviceType, ObjectHelper<IfcElectricFlowStorageDeviceType,1> { IfcElectricFlowStorageDeviceType() : Object("IfcElectricFlowStorageDeviceType") {}
        IfcElectricFlowStorageDeviceTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcElectricGeneratorType
    struct IfcElectricGeneratorType : IfcEnergyConversionDeviceType, ObjectHelper<IfcElectricGeneratorType,1> { IfcElectricGeneratorType() : Object("IfcElectricGeneratorType") {}
        IfcElectricGeneratorTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcElectricHeaterType
    struct IfcElectricHeaterType : IfcFlowTerminalType, ObjectHelper<IfcElectricHeaterType,1> { IfcElectricHeaterType() : Object("IfcElectricHeaterType") {}
        IfcElectricHeaterTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcElectricMotorType
    struct IfcElectricMotorType : IfcEnergyConversionDeviceType, ObjectHelper<IfcElectricMotorType,1> { IfcElectricMotorType() : Object("IfcElectricMotorType") {}
        IfcElectricMotorTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcElectricTimeControlType
    struct IfcElectricTimeControlType : IfcFlowControllerType, ObjectHelper<IfcElectricTimeControlType,1> { IfcElectricTimeControlType() : Object("IfcElectricTimeControlType") {}
        IfcElectricTimeControlTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcSystem
    struct IfcSystem : IfcGroup, ObjectHelper<IfcSystem,0> { IfcSystem() : Object("IfcSystem") {}

    };

    // C++ wrapper for IfcElectricalCircuit
    struct IfcElectricalCircuit : IfcSystem, ObjectHelper<IfcElectricalCircuit,0> { IfcElectricalCircuit() : Object("IfcElectricalCircuit") {}

    };

    // C++ wrapper for IfcElectricalElement
    struct IfcElectricalElement : IfcElement, ObjectHelper<IfcElectricalElement,0> { IfcElectricalElement() : Object("IfcElectricalElement") {}

    };

    // C++ wrapper for IfcElementAssembly
    struct IfcElementAssembly : IfcElement, ObjectHelper<IfcElementAssembly,2> { IfcElementAssembly() : Object("IfcElementAssembly") {}
        Maybe< IfcAssemblyPlaceEnum::Out > AssemblyPlace;
        IfcElementAssemblyTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcElementQuantity
    struct IfcElementQuantity : IfcPropertySetDefinition, ObjectHelper<IfcElementQuantity,2> { IfcElementQuantity() : Object("IfcElementQuantity") {}
        Maybe< IfcLabel::Out > MethodOfMeasurement;
        ListOf< Lazy< NotImplemented >, 1, 0 > Quantities;
    };

    // C++ wrapper for IfcElementarySurface
    struct IfcElementarySurface : IfcSurface, ObjectHelper<IfcElementarySurface,1> { IfcElementarySurface() : Object("IfcElementarySurface") {}
        Lazy< IfcAxis2Placement3D > Position;
    };

    // C++ wrapper for IfcEllipse
    struct IfcEllipse : IfcConic, ObjectHelper<IfcEllipse,2> { IfcEllipse() : Object("IfcEllipse") {}
        IfcPositiveLengthMeasure::Out SemiAxis1;
        IfcPositiveLengthMeasure::Out SemiAxis2;
    };

    // C++ wrapper for IfcEllipseProfileDef
    struct IfcEllipseProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcEllipseProfileDef,2> { IfcEllipseProfileDef() : Object("IfcEllipseProfileDef") {}
        IfcPositiveLengthMeasure::Out SemiAxis1;
        IfcPositiveLengthMeasure::Out SemiAxis2;
    };

    // C++ wrapper for IfcEnergyConversionDevice
    struct IfcEnergyConversionDevice : IfcDistributionFlowElement, ObjectHelper<IfcEnergyConversionDevice,0> { IfcEnergyConversionDevice() : Object("IfcEnergyConversionDevice") {}

    };

    // C++ wrapper for IfcEquipmentElement
    struct IfcEquipmentElement : IfcElement, ObjectHelper<IfcEquipmentElement,0> { IfcEquipmentElement() : Object("IfcEquipmentElement") {}

    };

    // C++ wrapper for IfcEquipmentStandard
    struct IfcEquipmentStandard : IfcControl, ObjectHelper<IfcEquipmentStandard,0> { IfcEquipmentStandard() : Object("IfcEquipmentStandard") {}

    };

    // C++ wrapper for IfcEvaporativeCoolerType
    struct IfcEvaporativeCoolerType : IfcEnergyConversionDeviceType, ObjectHelper<IfcEvaporativeCoolerType,1> { IfcEvaporativeCoolerType() : Object("IfcEvaporativeCoolerType") {}
        IfcEvaporativeCoolerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcEvaporatorType
    struct IfcEvaporatorType : IfcEnergyConversionDeviceType, ObjectHelper<IfcEvaporatorType,1> { IfcEvaporatorType() : Object("IfcEvaporatorType") {}
        IfcEvaporatorTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcSweptAreaSolid
    struct IfcSweptAreaSolid : IfcSolidModel, ObjectHelper<IfcSweptAreaSolid,2> { IfcSweptAreaSolid() : Object("IfcSweptAreaSolid") {}
        Lazy< IfcProfileDef > SweptArea;
        Lazy< IfcAxis2Placement3D > Position;
    };

    // C++ wrapper for IfcExtrudedAreaSolid
    struct IfcExtrudedAreaSolid : IfcSweptAreaSolid, ObjectHelper<IfcExtrudedAreaSolid,2> { IfcExtrudedAreaSolid() : Object("IfcExtrudedAreaSolid") {}
        Lazy< IfcDirection > ExtrudedDirection;
        IfcPositiveLengthMeasure::Out Depth;
    };

    // C++ wrapper for IfcFace
    struct IfcFace : IfcTopologicalRepresentationItem, ObjectHelper<IfcFace,1> { IfcFace() : Object("IfcFace") {}
        ListOf< Lazy< IfcFaceBound >, 1, 0 > Bounds;
    };

    // C++ wrapper for IfcFaceBasedSurfaceModel
    struct IfcFaceBasedSurfaceModel : IfcGeometricRepresentationItem, ObjectHelper<IfcFaceBasedSurfaceModel,1> { IfcFaceBasedSurfaceModel() : Object("IfcFaceBasedSurfaceModel") {}
        ListOf< Lazy< IfcConnectedFaceSet >, 1, 0 > FbsmFaces;
    };

    // C++ wrapper for IfcFaceBound
    struct IfcFaceBound : IfcTopologicalRepresentationItem, ObjectHelper<IfcFaceBound,2> { IfcFaceBound() : Object("IfcFaceBound") {}
        Lazy< IfcLoop > Bound;
        BOOLEAN::Out Orientation;
    };

    // C++ wrapper for IfcFaceOuterBound
    struct IfcFaceOuterBound : IfcFaceBound, ObjectHelper<IfcFaceOuterBound,0> { IfcFaceOuterBound() : Object("IfcFaceOuterBound") {}

    };

    // C++ wrapper for IfcFaceSurface
    struct IfcFaceSurface : IfcFace, ObjectHelper<IfcFaceSurface,2> { IfcFaceSurface() : Object("IfcFaceSurface") {}
        Lazy< IfcSurface > FaceSurface;
        BOOLEAN::Out SameSense;
    };

    // C++ wrapper for IfcManifoldSolidBrep
    struct IfcManifoldSolidBrep : IfcSolidModel, ObjectHelper<IfcManifoldSolidBrep,1> { IfcManifoldSolidBrep() : Object("IfcManifoldSolidBrep") {}
        Lazy< IfcClosedShell > Outer;
    };

    // C++ wrapper for IfcFacetedBrep
    struct IfcFacetedBrep : IfcManifoldSolidBrep, ObjectHelper<IfcFacetedBrep,0> { IfcFacetedBrep() : Object("IfcFacetedBrep") {}

    };

    // C++ wrapper for IfcFacetedBrepWithVoids
    struct IfcFacetedBrepWithVoids : IfcManifoldSolidBrep, ObjectHelper<IfcFacetedBrepWithVoids,1> { IfcFacetedBrepWithVoids() : Object("IfcFacetedBrepWithVoids") {}
        ListOf< Lazy< IfcClosedShell >, 1, 0 > Voids;
    };

    // C++ wrapper for IfcFanType
    struct IfcFanType : IfcFlowMovingDeviceType, ObjectHelper<IfcFanType,1> { IfcFanType() : Object("IfcFanType") {}
        IfcFanTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFastener
    struct IfcFastener : IfcElementComponent, ObjectHelper<IfcFastener,0> { IfcFastener() : Object("IfcFastener") {}

    };

    // C++ wrapper for IfcFastenerType
    struct IfcFastenerType : IfcElementComponentType, ObjectHelper<IfcFastenerType,0> { IfcFastenerType() : Object("IfcFastenerType") {}

    };

    // C++ wrapper for IfcFeatureElementAddition
    struct IfcFeatureElementAddition : IfcFeatureElement, ObjectHelper<IfcFeatureElementAddition,0> { IfcFeatureElementAddition() : Object("IfcFeatureElementAddition") {}

    };

    // C++ wrapper for IfcFillAreaStyleHatching
    struct IfcFillAreaStyleHatching : IfcGeometricRepresentationItem, ObjectHelper<IfcFillAreaStyleHatching,5> { IfcFillAreaStyleHatching() : Object("IfcFillAreaStyleHatching") {}
        Lazy< NotImplemented > HatchLineAppearance;
        IfcHatchLineDistanceSelect::Out StartOfNextHatchLine;
        Maybe< Lazy< IfcCartesianPoint > > PointOfReferenceHatchLine;
        Maybe< Lazy< IfcCartesianPoint > > PatternStart;
        IfcPlaneAngleMeasure::Out HatchLineAngle;
    };

    // C++ wrapper for IfcFillAreaStyleTileSymbolWithStyle
    struct IfcFillAreaStyleTileSymbolWithStyle : IfcGeometricRepresentationItem, ObjectHelper<IfcFillAreaStyleTileSymbolWithStyle,1> { IfcFillAreaStyleTileSymbolWithStyle() : Object("IfcFillAreaStyleTileSymbolWithStyle") {}
        Lazy< IfcAnnotationSymbolOccurrence > Symbol;
    };

    // C++ wrapper for IfcFillAreaStyleTiles
    struct IfcFillAreaStyleTiles : IfcGeometricRepresentationItem, ObjectHelper<IfcFillAreaStyleTiles,3> { IfcFillAreaStyleTiles() : Object("IfcFillAreaStyleTiles") {}
        Lazy< IfcOneDirectionRepeatFactor > TilingPattern;
        ListOf< IfcFillAreaStyleTileShapeSelect, 1, 0 >::Out Tiles;
        IfcPositiveRatioMeasure::Out TilingScale;
    };

    // C++ wrapper for IfcFilterType
    struct IfcFilterType : IfcFlowTreatmentDeviceType, ObjectHelper<IfcFilterType,1> { IfcFilterType() : Object("IfcFilterType") {}
        IfcFilterTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFireSuppressionTerminalType
    struct IfcFireSuppressionTerminalType : IfcFlowTerminalType, ObjectHelper<IfcFireSuppressionTerminalType,1> { IfcFireSuppressionTerminalType() : Object("IfcFireSuppressionTerminalType") {}
        IfcFireSuppressionTerminalTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFlowFitting
    struct IfcFlowFitting : IfcDistributionFlowElement, ObjectHelper<IfcFlowFitting,0> { IfcFlowFitting() : Object("IfcFlowFitting") {}

    };

    // C++ wrapper for IfcFlowInstrumentType
    struct IfcFlowInstrumentType : IfcDistributionControlElementType, ObjectHelper<IfcFlowInstrumentType,1> { IfcFlowInstrumentType() : Object("IfcFlowInstrumentType") {}
        IfcFlowInstrumentTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFlowMeterType
    struct IfcFlowMeterType : IfcFlowControllerType, ObjectHelper<IfcFlowMeterType,1> { IfcFlowMeterType() : Object("IfcFlowMeterType") {}
        IfcFlowMeterTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFlowMovingDevice
    struct IfcFlowMovingDevice : IfcDistributionFlowElement, ObjectHelper<IfcFlowMovingDevice,0> { IfcFlowMovingDevice() : Object("IfcFlowMovingDevice") {}

    };

    // C++ wrapper for IfcFlowSegment
    struct IfcFlowSegment : IfcDistributionFlowElement, ObjectHelper<IfcFlowSegment,0> { IfcFlowSegment() : Object("IfcFlowSegment") {}

    };

    // C++ wrapper for IfcFlowStorageDevice
    struct IfcFlowStorageDevice : IfcDistributionFlowElement, ObjectHelper<IfcFlowStorageDevice,0> { IfcFlowStorageDevice() : Object("IfcFlowStorageDevice") {}

    };

    // C++ wrapper for IfcFlowTerminal
    struct IfcFlowTerminal : IfcDistributionFlowElement, ObjectHelper<IfcFlowTerminal,0> { IfcFlowTerminal() : Object("IfcFlowTerminal") {}

    };

    // C++ wrapper for IfcFlowTreatmentDevice
    struct IfcFlowTreatmentDevice : IfcDistributionFlowElement, ObjectHelper<IfcFlowTreatmentDevice,0> { IfcFlowTreatmentDevice() : Object("IfcFlowTreatmentDevice") {}

    };

    // C++ wrapper for IfcFooting
    struct IfcFooting : IfcBuildingElement, ObjectHelper<IfcFooting,1> { IfcFooting() : Object("IfcFooting") {}
        IfcFootingTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcFurnishingElement
    struct IfcFurnishingElement : IfcElement, ObjectHelper<IfcFurnishingElement,0> { IfcFurnishingElement() : Object("IfcFurnishingElement") {}

    };

    // C++ wrapper for IfcFurnishingElementType
    struct IfcFurnishingElementType : IfcElementType, ObjectHelper<IfcFurnishingElementType,0> { IfcFurnishingElementType() : Object("IfcFurnishingElementType") {}

    };

    // C++ wrapper for IfcFurnitureStandard
    struct IfcFurnitureStandard : IfcControl, ObjectHelper<IfcFurnitureStandard,0> { IfcFurnitureStandard() : Object("IfcFurnitureStandard") {}

    };

    // C++ wrapper for IfcFurnitureType
    struct IfcFurnitureType : IfcFurnishingElementType, ObjectHelper<IfcFurnitureType,1> { IfcFurnitureType() : Object("IfcFurnitureType") {}
        IfcAssemblyPlaceEnum::Out AssemblyPlace;
    };

    // C++ wrapper for IfcGasTerminalType
    struct IfcGasTerminalType : IfcFlowTerminalType, ObjectHelper<IfcGasTerminalType,1> { IfcGasTerminalType() : Object("IfcGasTerminalType") {}
        IfcGasTerminalTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcGeometricSet
    struct IfcGeometricSet : IfcGeometricRepresentationItem, ObjectHelper<IfcGeometricSet,1> { IfcGeometricSet() : Object("IfcGeometricSet") {}
        ListOf< IfcGeometricSetSelect, 1, 0 >::Out Elements;
    };

    // C++ wrapper for IfcGeometricCurveSet
    struct IfcGeometricCurveSet : IfcGeometricSet, ObjectHelper<IfcGeometricCurveSet,0> { IfcGeometricCurveSet() : Object("IfcGeometricCurveSet") {}

    };

    // C++ wrapper for IfcRepresentationContext
    struct IfcRepresentationContext :  ObjectHelper<IfcRepresentationContext,2> { IfcRepresentationContext() : Object("IfcRepresentationContext") {}
        Maybe< IfcLabel::Out > ContextIdentifier;
        Maybe< IfcLabel::Out > ContextType;
    };

    // C++ wrapper for IfcGeometricRepresentationContext
    struct IfcGeometricRepresentationContext : IfcRepresentationContext, ObjectHelper<IfcGeometricRepresentationContext,4> { IfcGeometricRepresentationContext() : Object("IfcGeometricRepresentationContext") {}
        IfcDimensionCount::Out CoordinateSpaceDimension;
        Maybe< REAL::Out > Precision;
        IfcAxis2Placement::Out WorldCoordinateSystem;
        Maybe< Lazy< IfcDirection > > TrueNorth;
    };

    // C++ wrapper for IfcGeometricRepresentationSubContext
    struct IfcGeometricRepresentationSubContext : IfcGeometricRepresentationContext, ObjectHelper<IfcGeometricRepresentationSubContext,4> { IfcGeometricRepresentationSubContext() : Object("IfcGeometricRepresentationSubContext") {}
        Lazy< IfcGeometricRepresentationContext > ParentContext;
        Maybe< IfcPositiveRatioMeasure::Out > TargetScale;
        IfcGeometricProjectionEnum::Out TargetView;
        Maybe< IfcLabel::Out > UserDefinedTargetView;
    };

    // C++ wrapper for IfcGrid
    struct IfcGrid : IfcProduct, ObjectHelper<IfcGrid,3> { IfcGrid() : Object("IfcGrid") {}
        ListOf< Lazy< NotImplemented >, 1, 0 > UAxes;
        ListOf< Lazy< NotImplemented >, 1, 0 > VAxes;
        Maybe< ListOf< Lazy< NotImplemented >, 1, 0 > > WAxes;
    };

    // C++ wrapper for IfcObjectPlacement
    struct IfcObjectPlacement :  ObjectHelper<IfcObjectPlacement,0> { IfcObjectPlacement() : Object("IfcObjectPlacement") {}

    };

    // C++ wrapper for IfcGridPlacement
    struct IfcGridPlacement : IfcObjectPlacement, ObjectHelper<IfcGridPlacement,2> { IfcGridPlacement() : Object("IfcGridPlacement") {}
        Lazy< NotImplemented > PlacementLocation;
        Maybe< Lazy< NotImplemented > > PlacementRefDirection;
    };

    // C++ wrapper for IfcHeatExchangerType
    struct IfcHeatExchangerType : IfcEnergyConversionDeviceType, ObjectHelper<IfcHeatExchangerType,1> { IfcHeatExchangerType() : Object("IfcHeatExchangerType") {}
        IfcHeatExchangerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcHumidifierType
    struct IfcHumidifierType : IfcEnergyConversionDeviceType, ObjectHelper<IfcHumidifierType,1> { IfcHumidifierType() : Object("IfcHumidifierType") {}
        IfcHumidifierTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcInventory
    struct IfcInventory : IfcGroup, ObjectHelper<IfcInventory,6> { IfcInventory() : Object("IfcInventory") {}
        IfcInventoryTypeEnum::Out InventoryType;
        IfcActorSelect::Out Jurisdiction;
        ListOf< Lazy< NotImplemented >, 1, 0 > ResponsiblePersons;
        Lazy< NotImplemented > LastUpdateDate;
        Maybe< Lazy< NotImplemented > > CurrentValue;
        Maybe< Lazy< NotImplemented > > OriginalValue;
    };

    // C++ wrapper for IfcJunctionBoxType
    struct IfcJunctionBoxType : IfcFlowFittingType, ObjectHelper<IfcJunctionBoxType,1> { IfcJunctionBoxType() : Object("IfcJunctionBoxType") {}
        IfcJunctionBoxTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcLShapeProfileDef
    struct IfcLShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcLShapeProfileDef,8> { IfcLShapeProfileDef() : Object("IfcLShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out Depth;
        Maybe< IfcPositiveLengthMeasure::Out > Width;
        IfcPositiveLengthMeasure::Out Thickness;
        Maybe< IfcPositiveLengthMeasure::Out > FilletRadius;
        Maybe< IfcPositiveLengthMeasure::Out > EdgeRadius;
        Maybe< IfcPlaneAngleMeasure::Out > LegSlope;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInX;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInY;
    };

    // C++ wrapper for IfcLaborResource
    struct IfcLaborResource : IfcConstructionResource, ObjectHelper<IfcLaborResource,1> { IfcLaborResource() : Object("IfcLaborResource") {}
        Maybe< IfcText::Out > SkillSet;
    };

    // C++ wrapper for IfcLampType
    struct IfcLampType : IfcFlowTerminalType, ObjectHelper<IfcLampType,1> { IfcLampType() : Object("IfcLampType") {}
        IfcLampTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcLightFixtureType
    struct IfcLightFixtureType : IfcFlowTerminalType, ObjectHelper<IfcLightFixtureType,1> { IfcLightFixtureType() : Object("IfcLightFixtureType") {}
        IfcLightFixtureTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcLightSource
    struct IfcLightSource : IfcGeometricRepresentationItem, ObjectHelper<IfcLightSource,4> { IfcLightSource() : Object("IfcLightSource") {}
        Maybe< IfcLabel::Out > Name;
        Lazy< IfcColourRgb > LightColour;
        Maybe< IfcNormalisedRatioMeasure::Out > AmbientIntensity;
        Maybe< IfcNormalisedRatioMeasure::Out > Intensity;
    };

    // C++ wrapper for IfcLightSourceAmbient
    struct IfcLightSourceAmbient : IfcLightSource, ObjectHelper<IfcLightSourceAmbient,0> { IfcLightSourceAmbient() : Object("IfcLightSourceAmbient") {}

    };

    // C++ wrapper for IfcLightSourceDirectional
    struct IfcLightSourceDirectional : IfcLightSource, ObjectHelper<IfcLightSourceDirectional,1> { IfcLightSourceDirectional() : Object("IfcLightSourceDirectional") {}
        Lazy< IfcDirection > Orientation;
    };

    // C++ wrapper for IfcLightSourceGoniometric
    struct IfcLightSourceGoniometric : IfcLightSource, ObjectHelper<IfcLightSourceGoniometric,6> { IfcLightSourceGoniometric() : Object("IfcLightSourceGoniometric") {}
        Lazy< IfcAxis2Placement3D > Position;
        Maybe< Lazy< IfcColourRgb > > ColourAppearance;
        IfcThermodynamicTemperatureMeasure::Out ColourTemperature;
        IfcLuminousFluxMeasure::Out LuminousFlux;
        IfcLightEmissionSourceEnum::Out LightEmissionSource;
        IfcLightDistributionDataSourceSelect::Out LightDistributionDataSource;
    };

    // C++ wrapper for IfcLightSourcePositional
    struct IfcLightSourcePositional : IfcLightSource, ObjectHelper<IfcLightSourcePositional,5> { IfcLightSourcePositional() : Object("IfcLightSourcePositional") {}
        Lazy< IfcCartesianPoint > Position;
        IfcPositiveLengthMeasure::Out Radius;
        IfcReal::Out ConstantAttenuation;
        IfcReal::Out DistanceAttenuation;
        IfcReal::Out QuadricAttenuation;
    };

    // C++ wrapper for IfcLightSourceSpot
    struct IfcLightSourceSpot : IfcLightSourcePositional, ObjectHelper<IfcLightSourceSpot,4> { IfcLightSourceSpot() : Object("IfcLightSourceSpot") {}
        Lazy< IfcDirection > Orientation;
        Maybe< IfcReal::Out > ConcentrationExponent;
        IfcPositivePlaneAngleMeasure::Out SpreadAngle;
        IfcPositivePlaneAngleMeasure::Out BeamWidthAngle;
    };

    // C++ wrapper for IfcLine
    struct IfcLine : IfcCurve, ObjectHelper<IfcLine,2> { IfcLine() : Object("IfcLine") {}
        Lazy< IfcCartesianPoint > Pnt;
        Lazy< IfcVector > Dir;
    };

    // C++ wrapper for IfcLinearDimension
    struct IfcLinearDimension : IfcDimensionCurveDirectedCallout, ObjectHelper<IfcLinearDimension,0> { IfcLinearDimension() : Object("IfcLinearDimension") {}

    };

    // C++ wrapper for IfcLocalPlacement
    struct IfcLocalPlacement : IfcObjectPlacement, ObjectHelper<IfcLocalPlacement,2> { IfcLocalPlacement() : Object("IfcLocalPlacement") {}
        Maybe< Lazy< IfcObjectPlacement > > PlacementRelTo;
        IfcAxis2Placement::Out RelativePlacement;
    };

    // C++ wrapper for IfcMappedItem
    struct IfcMappedItem : IfcRepresentationItem, ObjectHelper<IfcMappedItem,2> { IfcMappedItem() : Object("IfcMappedItem") {}
        Lazy< IfcRepresentationMap > MappingSource;
        Lazy< IfcCartesianTransformationOperator > MappingTarget;
    };

    // C++ wrapper for IfcProductRepresentation
    struct IfcProductRepresentation :  ObjectHelper<IfcProductRepresentation,3> { IfcProductRepresentation() : Object("IfcProductRepresentation") {}
        Maybe< IfcLabel::Out > Name;
        Maybe< IfcText::Out > Description;
        ListOf< Lazy< IfcRepresentation >, 1, 0 > Representations;
    };

    // C++ wrapper for IfcMaterialDefinitionRepresentation
    struct IfcMaterialDefinitionRepresentation : IfcProductRepresentation, ObjectHelper<IfcMaterialDefinitionRepresentation,1> { IfcMaterialDefinitionRepresentation() : Object("IfcMaterialDefinitionRepresentation") {}
        Lazy< NotImplemented > RepresentedMaterial;
    };

    // C++ wrapper for IfcMeasureWithUnit
    struct IfcMeasureWithUnit :  ObjectHelper<IfcMeasureWithUnit,2> { IfcMeasureWithUnit() : Object("IfcMeasureWithUnit") {}
        IfcValue::Out ValueComponent;
        IfcUnit::Out UnitComponent;
    };

    // C++ wrapper for IfcMechanicalFastener
    struct IfcMechanicalFastener : IfcFastener, ObjectHelper<IfcMechanicalFastener,2> { IfcMechanicalFastener() : Object("IfcMechanicalFastener") {}
        Maybe< IfcPositiveLengthMeasure::Out > NominalDiameter;
        Maybe< IfcPositiveLengthMeasure::Out > NominalLength;
    };

    // C++ wrapper for IfcMechanicalFastenerType
    struct IfcMechanicalFastenerType : IfcFastenerType, ObjectHelper<IfcMechanicalFastenerType,0> { IfcMechanicalFastenerType() : Object("IfcMechanicalFastenerType") {}

    };

    // C++ wrapper for IfcMember
    struct IfcMember : IfcBuildingElement, ObjectHelper<IfcMember,0> { IfcMember() : Object("IfcMember") {}

    };

    // C++ wrapper for IfcMemberType
    struct IfcMemberType : IfcBuildingElementType, ObjectHelper<IfcMemberType,1> { IfcMemberType() : Object("IfcMemberType") {}
        IfcMemberTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcMotorConnectionType
    struct IfcMotorConnectionType : IfcEnergyConversionDeviceType, ObjectHelper<IfcMotorConnectionType,1> { IfcMotorConnectionType() : Object("IfcMotorConnectionType") {}
        IfcMotorConnectionTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcProcess
    struct IfcProcess : IfcObject, ObjectHelper<IfcProcess,0> { IfcProcess() : Object("IfcProcess") {}

    };

    // C++ wrapper for IfcTask
    struct IfcTask : IfcProcess, ObjectHelper<IfcTask,5> { IfcTask() : Object("IfcTask") {}
        IfcIdentifier::Out TaskId;
        Maybe< IfcLabel::Out > Status;
        Maybe< IfcLabel::Out > WorkMethod;
        BOOLEAN::Out IsMilestone;
        Maybe< INTEGER::Out > Priority;
    };

    // C++ wrapper for IfcMove
    struct IfcMove : IfcTask, ObjectHelper<IfcMove,3> { IfcMove() : Object("IfcMove") {}
        Lazy< IfcSpatialStructureElement > MoveFrom;
        Lazy< IfcSpatialStructureElement > MoveTo;
        Maybe< ListOf< IfcText, 1, 0 >::Out > PunchList;
    };

    // C++ wrapper for IfcOccupant
    struct IfcOccupant : IfcActor, ObjectHelper<IfcOccupant,1> { IfcOccupant() : Object("IfcOccupant") {}
        IfcOccupantTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcOffsetCurve2D
    struct IfcOffsetCurve2D : IfcCurve, ObjectHelper<IfcOffsetCurve2D,3> { IfcOffsetCurve2D() : Object("IfcOffsetCurve2D") {}
        Lazy< IfcCurve > BasisCurve;
        IfcLengthMeasure::Out Distance;
        LOGICAL::Out SelfIntersect;
    };

    // C++ wrapper for IfcOffsetCurve3D
    struct IfcOffsetCurve3D : IfcCurve, ObjectHelper<IfcOffsetCurve3D,4> { IfcOffsetCurve3D() : Object("IfcOffsetCurve3D") {}
        Lazy< IfcCurve > BasisCurve;
        IfcLengthMeasure::Out Distance;
        LOGICAL::Out SelfIntersect;
        Lazy< IfcDirection > RefDirection;
    };

    // C++ wrapper for IfcOneDirectionRepeatFactor
    struct IfcOneDirectionRepeatFactor : IfcGeometricRepresentationItem, ObjectHelper<IfcOneDirectionRepeatFactor,1> { IfcOneDirectionRepeatFactor() : Object("IfcOneDirectionRepeatFactor") {}
        Lazy< IfcVector > RepeatFactor;
    };

    // C++ wrapper for IfcOpenShell
    struct IfcOpenShell : IfcConnectedFaceSet, ObjectHelper<IfcOpenShell,0> { IfcOpenShell() : Object("IfcOpenShell") {}

    };

    // C++ wrapper for IfcOpeningElement
    struct IfcOpeningElement : IfcFeatureElementSubtraction, ObjectHelper<IfcOpeningElement,0> { IfcOpeningElement() : Object("IfcOpeningElement") {}

    };

    // C++ wrapper for IfcOrderAction
    struct IfcOrderAction : IfcTask, ObjectHelper<IfcOrderAction,1> { IfcOrderAction() : Object("IfcOrderAction") {}
        IfcIdentifier::Out ActionID;
    };

    // C++ wrapper for IfcOrientedEdge
    struct IfcOrientedEdge : IfcEdge, ObjectHelper<IfcOrientedEdge,2> { IfcOrientedEdge() : Object("IfcOrientedEdge") {}
        Lazy< IfcEdge > EdgeElement;
        BOOLEAN::Out Orientation;
    };

    // C++ wrapper for IfcOutletType
    struct IfcOutletType : IfcFlowTerminalType, ObjectHelper<IfcOutletType,1> { IfcOutletType() : Object("IfcOutletType") {}
        IfcOutletTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcPath
    struct IfcPath : IfcTopologicalRepresentationItem, ObjectHelper<IfcPath,1> { IfcPath() : Object("IfcPath") {}
        ListOf< Lazy< IfcOrientedEdge >, 1, 0 > EdgeList;
    };

    // C++ wrapper for IfcPerformanceHistory
    struct IfcPerformanceHistory : IfcControl, ObjectHelper<IfcPerformanceHistory,1> { IfcPerformanceHistory() : Object("IfcPerformanceHistory") {}
        IfcLabel::Out LifeCyclePhase;
    };

    // C++ wrapper for IfcPermit
    struct IfcPermit : IfcControl, ObjectHelper<IfcPermit,1> { IfcPermit() : Object("IfcPermit") {}
        IfcIdentifier::Out PermitID;
    };

    // C++ wrapper for IfcPile
    struct IfcPile : IfcBuildingElement, ObjectHelper<IfcPile,2> { IfcPile() : Object("IfcPile") {}
        IfcPileTypeEnum::Out PredefinedType;
        Maybe< IfcPileConstructionEnum::Out > ConstructionType;
    };

    // C++ wrapper for IfcPipeFittingType
    struct IfcPipeFittingType : IfcFlowFittingType, ObjectHelper<IfcPipeFittingType,1> { IfcPipeFittingType() : Object("IfcPipeFittingType") {}
        IfcPipeFittingTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcPipeSegmentType
    struct IfcPipeSegmentType : IfcFlowSegmentType, ObjectHelper<IfcPipeSegmentType,1> { IfcPipeSegmentType() : Object("IfcPipeSegmentType") {}
        IfcPipeSegmentTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcPlanarExtent
    struct IfcPlanarExtent : IfcGeometricRepresentationItem, ObjectHelper<IfcPlanarExtent,2> { IfcPlanarExtent() : Object("IfcPlanarExtent") {}
        IfcLengthMeasure::Out SizeInX;
        IfcLengthMeasure::Out SizeInY;
    };

    // C++ wrapper for IfcPlanarBox
    struct IfcPlanarBox : IfcPlanarExtent, ObjectHelper<IfcPlanarBox,1> { IfcPlanarBox() : Object("IfcPlanarBox") {}
        IfcAxis2Placement::Out Placement;
    };

    // C++ wrapper for IfcPlane
    struct IfcPlane : IfcElementarySurface, ObjectHelper<IfcPlane,0> { IfcPlane() : Object("IfcPlane") {}

    };

    // C++ wrapper for IfcPlate
    struct IfcPlate : IfcBuildingElement, ObjectHelper<IfcPlate,0> { IfcPlate() : Object("IfcPlate") {}

    };

    // C++ wrapper for IfcPlateType
    struct IfcPlateType : IfcBuildingElementType, ObjectHelper<IfcPlateType,1> { IfcPlateType() : Object("IfcPlateType") {}
        IfcPlateTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcPointOnCurve
    struct IfcPointOnCurve : IfcPoint, ObjectHelper<IfcPointOnCurve,2> { IfcPointOnCurve() : Object("IfcPointOnCurve") {}
        Lazy< IfcCurve > BasisCurve;
        IfcParameterValue::Out PointParameter;
    };

    // C++ wrapper for IfcPointOnSurface
    struct IfcPointOnSurface : IfcPoint, ObjectHelper<IfcPointOnSurface,3> { IfcPointOnSurface() : Object("IfcPointOnSurface") {}
        Lazy< IfcSurface > BasisSurface;
        IfcParameterValue::Out PointParameterU;
        IfcParameterValue::Out PointParameterV;
    };

    // C++ wrapper for IfcPolyLoop
    struct IfcPolyLoop : IfcLoop, ObjectHelper<IfcPolyLoop,1> { IfcPolyLoop() : Object("IfcPolyLoop") {}
        ListOf< Lazy< IfcCartesianPoint >, 3, 0 > Polygon;
    };

    // C++ wrapper for IfcPolygonalBoundedHalfSpace
    struct IfcPolygonalBoundedHalfSpace : IfcHalfSpaceSolid, ObjectHelper<IfcPolygonalBoundedHalfSpace,2> { IfcPolygonalBoundedHalfSpace() : Object("IfcPolygonalBoundedHalfSpace") {}
        Lazy< IfcAxis2Placement3D > Position;
        Lazy< IfcBoundedCurve > PolygonalBoundary;
    };

    // C++ wrapper for IfcPolyline
    struct IfcPolyline : IfcBoundedCurve, ObjectHelper<IfcPolyline,1> { IfcPolyline() : Object("IfcPolyline") {}
        ListOf< Lazy< IfcCartesianPoint >, 2, 0 > Points;
    };

    // C++ wrapper for IfcPresentationStyleAssignment
    struct IfcPresentationStyleAssignment :  ObjectHelper<IfcPresentationStyleAssignment,1> { IfcPresentationStyleAssignment() : Object("IfcPresentationStyleAssignment") {}
        ListOf< IfcPresentationStyleSelect, 1, 0 >::Out Styles;
    };

    // C++ wrapper for IfcProcedure
    struct IfcProcedure : IfcProcess, ObjectHelper<IfcProcedure,3> { IfcProcedure() : Object("IfcProcedure") {}
        IfcIdentifier::Out ProcedureID;
        IfcProcedureTypeEnum::Out ProcedureType;
        Maybe< IfcLabel::Out > UserDefinedProcedureType;
    };

    // C++ wrapper for IfcProductDefinitionShape
    struct IfcProductDefinitionShape : IfcProductRepresentation, ObjectHelper<IfcProductDefinitionShape,0> { IfcProductDefinitionShape() : Object("IfcProductDefinitionShape") {}

    };

    // C++ wrapper for IfcProject
    struct IfcProject : IfcObject, ObjectHelper<IfcProject,4> { IfcProject() : Object("IfcProject") {}
        Maybe< IfcLabel::Out > LongName;
        Maybe< IfcLabel::Out > Phase;
        ListOf< Lazy< IfcRepresentationContext >, 1, 0 > RepresentationContexts;
        Lazy< IfcUnitAssignment > UnitsInContext;
    };

    // C++ wrapper for IfcProjectOrder
    struct IfcProjectOrder : IfcControl, ObjectHelper<IfcProjectOrder,3> { IfcProjectOrder() : Object("IfcProjectOrder") {}
        IfcIdentifier::Out ID;
        IfcProjectOrderTypeEnum::Out PredefinedType;
        Maybe< IfcLabel::Out > Status;
    };

    // C++ wrapper for IfcProjectOrderRecord
    struct IfcProjectOrderRecord : IfcControl, ObjectHelper<IfcProjectOrderRecord,2> { IfcProjectOrderRecord() : Object("IfcProjectOrderRecord") {}
        ListOf< Lazy< NotImplemented >, 1, 0 > Records;
        IfcProjectOrderRecordTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcProjectionCurve
    struct IfcProjectionCurve : IfcAnnotationCurveOccurrence, ObjectHelper<IfcProjectionCurve,0> { IfcProjectionCurve() : Object("IfcProjectionCurve") {}

    };

    // C++ wrapper for IfcProjectionElement
    struct IfcProjectionElement : IfcFeatureElementAddition, ObjectHelper<IfcProjectionElement,0> { IfcProjectionElement() : Object("IfcProjectionElement") {}

    };

    // C++ wrapper for IfcSimpleProperty
    struct IfcSimpleProperty : IfcProperty, ObjectHelper<IfcSimpleProperty,0> { IfcSimpleProperty() : Object("IfcSimpleProperty") {}

    };

    // C++ wrapper for IfcPropertyBoundedValue
    struct IfcPropertyBoundedValue : IfcSimpleProperty, ObjectHelper<IfcPropertyBoundedValue,3> { IfcPropertyBoundedValue() : Object("IfcPropertyBoundedValue") {}
        Maybe< IfcValue::Out > UpperBoundValue;
        Maybe< IfcValue::Out > LowerBoundValue;
        Maybe< IfcUnit::Out > Unit;
    };

    // C++ wrapper for IfcPropertyEnumeratedValue
    struct IfcPropertyEnumeratedValue : IfcSimpleProperty, ObjectHelper<IfcPropertyEnumeratedValue,2> { IfcPropertyEnumeratedValue() : Object("IfcPropertyEnumeratedValue") {}
        ListOf< IfcValue, 1, 0 >::Out EnumerationValues;
        Maybe< Lazy< NotImplemented > > EnumerationReference;
    };

    // C++ wrapper for IfcPropertyListValue
    struct IfcPropertyListValue : IfcSimpleProperty, ObjectHelper<IfcPropertyListValue,2> { IfcPropertyListValue() : Object("IfcPropertyListValue") {}
        ListOf< IfcValue, 1, 0 >::Out ListValues;
        Maybe< IfcUnit::Out > Unit;
    };

    // C++ wrapper for IfcPropertyReferenceValue
    struct IfcPropertyReferenceValue : IfcSimpleProperty, ObjectHelper<IfcPropertyReferenceValue,2> { IfcPropertyReferenceValue() : Object("IfcPropertyReferenceValue") {}
        Maybe< IfcLabel::Out > UsageName;
        IfcObjectReferenceSelect::Out PropertyReference;
    };

    // C++ wrapper for IfcPropertySet
    struct IfcPropertySet : IfcPropertySetDefinition, ObjectHelper<IfcPropertySet,1> { IfcPropertySet() : Object("IfcPropertySet") {}
        ListOf< Lazy< IfcProperty >, 1, 0 > HasProperties;
    };

    // C++ wrapper for IfcPropertySingleValue
    struct IfcPropertySingleValue : IfcSimpleProperty, ObjectHelper<IfcPropertySingleValue,2> { IfcPropertySingleValue() : Object("IfcPropertySingleValue") {}
        Maybe< IfcValue::Out > NominalValue;
        Maybe< IfcUnit::Out > Unit;
    };

    // C++ wrapper for IfcPropertyTableValue
    struct IfcPropertyTableValue : IfcSimpleProperty, ObjectHelper<IfcPropertyTableValue,5> { IfcPropertyTableValue() : Object("IfcPropertyTableValue") {}
        ListOf< IfcValue, 1, 0 >::Out DefiningValues;
        ListOf< IfcValue, 1, 0 >::Out DefinedValues;
        Maybe< IfcText::Out > Expression;
        Maybe< IfcUnit::Out > DefiningUnit;
        Maybe< IfcUnit::Out > DefinedUnit;
    };

    // C++ wrapper for IfcProtectiveDeviceType
    struct IfcProtectiveDeviceType : IfcFlowControllerType, ObjectHelper<IfcProtectiveDeviceType,1> { IfcProtectiveDeviceType() : Object("IfcProtectiveDeviceType") {}
        IfcProtectiveDeviceTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcProxy
    struct IfcProxy : IfcProduct, ObjectHelper<IfcProxy,2> { IfcProxy() : Object("IfcProxy") {}
        IfcObjectTypeEnum::Out ProxyType;
        Maybe< IfcLabel::Out > Tag;
    };

    // C++ wrapper for IfcPumpType
    struct IfcPumpType : IfcFlowMovingDeviceType, ObjectHelper<IfcPumpType,1> { IfcPumpType() : Object("IfcPumpType") {}
        IfcPumpTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcRadiusDimension
    struct IfcRadiusDimension : IfcDimensionCurveDirectedCallout, ObjectHelper<IfcRadiusDimension,0> { IfcRadiusDimension() : Object("IfcRadiusDimension") {}

    };

    // C++ wrapper for IfcRailing
    struct IfcRailing : IfcBuildingElement, ObjectHelper<IfcRailing,1> { IfcRailing() : Object("IfcRailing") {}
        Maybe< IfcRailingTypeEnum::Out > PredefinedType;
    };

    // C++ wrapper for IfcRailingType
    struct IfcRailingType : IfcBuildingElementType, ObjectHelper<IfcRailingType,1> { IfcRailingType() : Object("IfcRailingType") {}
        IfcRailingTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcRamp
    struct IfcRamp : IfcBuildingElement, ObjectHelper<IfcRamp,1> { IfcRamp() : Object("IfcRamp") {}
        IfcRampTypeEnum::Out ShapeType;
    };

    // C++ wrapper for IfcRampFlight
    struct IfcRampFlight : IfcBuildingElement, ObjectHelper<IfcRampFlight,0> { IfcRampFlight() : Object("IfcRampFlight") {}

    };

    // C++ wrapper for IfcRampFlightType
    struct IfcRampFlightType : IfcBuildingElementType, ObjectHelper<IfcRampFlightType,1> { IfcRampFlightType() : Object("IfcRampFlightType") {}
        IfcRampFlightTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcRationalBezierCurve
    struct IfcRationalBezierCurve : IfcBezierCurve, ObjectHelper<IfcRationalBezierCurve,1> { IfcRationalBezierCurve() : Object("IfcRationalBezierCurve") {}
        ListOf< REAL, 2, 0 >::Out WeightsData;
    };

    // C++ wrapper for IfcRectangleProfileDef
    struct IfcRectangleProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcRectangleProfileDef,2> { IfcRectangleProfileDef() : Object("IfcRectangleProfileDef") {}
        IfcPositiveLengthMeasure::Out XDim;
        IfcPositiveLengthMeasure::Out YDim;
    };

    // C++ wrapper for IfcRectangleHollowProfileDef
    struct IfcRectangleHollowProfileDef : IfcRectangleProfileDef, ObjectHelper<IfcRectangleHollowProfileDef,3> { IfcRectangleHollowProfileDef() : Object("IfcRectangleHollowProfileDef") {}
        IfcPositiveLengthMeasure::Out WallThickness;
        Maybe< IfcPositiveLengthMeasure::Out > InnerFilletRadius;
        Maybe< IfcPositiveLengthMeasure::Out > OuterFilletRadius;
    };

    // C++ wrapper for IfcRectangularPyramid
    struct IfcRectangularPyramid : IfcCsgPrimitive3D, ObjectHelper<IfcRectangularPyramid,3> { IfcRectangularPyramid() : Object("IfcRectangularPyramid") {}
        IfcPositiveLengthMeasure::Out XLength;
        IfcPositiveLengthMeasure::Out YLength;
        IfcPositiveLengthMeasure::Out Height;
    };

    // C++ wrapper for IfcRectangularTrimmedSurface
    struct IfcRectangularTrimmedSurface : IfcBoundedSurface, ObjectHelper<IfcRectangularTrimmedSurface,7> { IfcRectangularTrimmedSurface() : Object("IfcRectangularTrimmedSurface") {}
        Lazy< IfcSurface > BasisSurface;
        IfcParameterValue::Out U1;
        IfcParameterValue::Out V1;
        IfcParameterValue::Out U2;
        IfcParameterValue::Out V2;
        BOOLEAN::Out Usense;
        BOOLEAN::Out Vsense;
    };

    // C++ wrapper for IfcReinforcingElement
    struct IfcReinforcingElement : IfcBuildingElementComponent, ObjectHelper<IfcReinforcingElement,1> { IfcReinforcingElement() : Object("IfcReinforcingElement") {}
        Maybe< IfcLabel::Out > SteelGrade;
    };

    // C++ wrapper for IfcReinforcingBar
    struct IfcReinforcingBar : IfcReinforcingElement, ObjectHelper<IfcReinforcingBar,5> { IfcReinforcingBar() : Object("IfcReinforcingBar") {}
        IfcPositiveLengthMeasure::Out NominalDiameter;
        IfcAreaMeasure::Out CrossSectionArea;
        Maybe< IfcPositiveLengthMeasure::Out > BarLength;
        IfcReinforcingBarRoleEnum::Out BarRole;
        Maybe< IfcReinforcingBarSurfaceEnum::Out > BarSurface;
    };

    // C++ wrapper for IfcReinforcingMesh
    struct IfcReinforcingMesh : IfcReinforcingElement, ObjectHelper<IfcReinforcingMesh,8> { IfcReinforcingMesh() : Object("IfcReinforcingMesh") {}
        Maybe< IfcPositiveLengthMeasure::Out > MeshLength;
        Maybe< IfcPositiveLengthMeasure::Out > MeshWidth;
        IfcPositiveLengthMeasure::Out LongitudinalBarNominalDiameter;
        IfcPositiveLengthMeasure::Out TransverseBarNominalDiameter;
        IfcAreaMeasure::Out LongitudinalBarCrossSectionArea;
        IfcAreaMeasure::Out TransverseBarCrossSectionArea;
        IfcPositiveLengthMeasure::Out LongitudinalBarSpacing;
        IfcPositiveLengthMeasure::Out TransverseBarSpacing;
    };

    // C++ wrapper for IfcRelationship
    struct IfcRelationship : IfcRoot, ObjectHelper<IfcRelationship,0> { IfcRelationship() : Object("IfcRelationship") {}

    };

    // C++ wrapper for IfcRelDecomposes
    struct IfcRelDecomposes : IfcRelationship, ObjectHelper<IfcRelDecomposes,2> { IfcRelDecomposes() : Object("IfcRelDecomposes") {}
        Lazy< IfcObjectDefinition > RelatingObject;
        ListOf< Lazy< IfcObjectDefinition >, 1, 0 > RelatedObjects;
    };

    // C++ wrapper for IfcRelAggregates
    struct IfcRelAggregates : IfcRelDecomposes, ObjectHelper<IfcRelAggregates,0> { IfcRelAggregates() : Object("IfcRelAggregates") {}

    };

    // C++ wrapper for IfcRelConnects
    struct IfcRelConnects : IfcRelationship, ObjectHelper<IfcRelConnects,0> { IfcRelConnects() : Object("IfcRelConnects") {}

    };

    // C++ wrapper for IfcRelContainedInSpatialStructure
    struct IfcRelContainedInSpatialStructure : IfcRelConnects, ObjectHelper<IfcRelContainedInSpatialStructure,2> { IfcRelContainedInSpatialStructure() : Object("IfcRelContainedInSpatialStructure") {}
        ListOf< Lazy< IfcProduct >, 1, 0 > RelatedElements;
        Lazy< IfcSpatialStructureElement > RelatingStructure;
    };

    // C++ wrapper for IfcRelDefines
    struct IfcRelDefines : IfcRelationship, ObjectHelper<IfcRelDefines,1> { IfcRelDefines() : Object("IfcRelDefines") {}
        ListOf< Lazy< IfcObject >, 1, 0 > RelatedObjects;
    };

    // C++ wrapper for IfcRelDefinesByProperties
    struct IfcRelDefinesByProperties : IfcRelDefines, ObjectHelper<IfcRelDefinesByProperties,1> { IfcRelDefinesByProperties() : Object("IfcRelDefinesByProperties") {}
        Lazy< IfcPropertySetDefinition > RelatingPropertyDefinition;
    };

    // C++ wrapper for IfcRelFillsElement
    struct IfcRelFillsElement : IfcRelConnects, ObjectHelper<IfcRelFillsElement,2> { IfcRelFillsElement() : Object("IfcRelFillsElement") {}
        Lazy< IfcOpeningElement > RelatingOpeningElement;
        Lazy< IfcElement > RelatedBuildingElement;
    };

    // C++ wrapper for IfcRelOverridesProperties
    struct IfcRelOverridesProperties : IfcRelDefinesByProperties, ObjectHelper<IfcRelOverridesProperties,1> { IfcRelOverridesProperties() : Object("IfcRelOverridesProperties") {}
        ListOf< Lazy< IfcProperty >, 1, 0 > OverridingProperties;
    };

    // C++ wrapper for IfcRelVoidsElement
    struct IfcRelVoidsElement : IfcRelConnects, ObjectHelper<IfcRelVoidsElement,2> { IfcRelVoidsElement() : Object("IfcRelVoidsElement") {}
        Lazy< IfcElement > RelatingBuildingElement;
        Lazy< IfcFeatureElementSubtraction > RelatedOpeningElement;
    };

    // C++ wrapper for IfcRepresentation
    struct IfcRepresentation :  ObjectHelper<IfcRepresentation,4> { IfcRepresentation() : Object("IfcRepresentation") {}
        Lazy< IfcRepresentationContext > ContextOfItems;
        Maybe< IfcLabel::Out > RepresentationIdentifier;
        Maybe< IfcLabel::Out > RepresentationType;
        ListOf< Lazy< IfcRepresentationItem >, 1, 0 > Items;
    };

    // C++ wrapper for IfcRepresentationMap
    struct IfcRepresentationMap :  ObjectHelper<IfcRepresentationMap,2> { IfcRepresentationMap() : Object("IfcRepresentationMap") {}
        IfcAxis2Placement::Out MappingOrigin;
        Lazy< IfcRepresentation > MappedRepresentation;
    };

    // C++ wrapper for IfcRevolvedAreaSolid
    struct IfcRevolvedAreaSolid : IfcSweptAreaSolid, ObjectHelper<IfcRevolvedAreaSolid,2> { IfcRevolvedAreaSolid() : Object("IfcRevolvedAreaSolid") {}
        Lazy< IfcAxis1Placement > Axis;
        IfcPlaneAngleMeasure::Out Angle;
    };

    // C++ wrapper for IfcRightCircularCone
    struct IfcRightCircularCone : IfcCsgPrimitive3D, ObjectHelper<IfcRightCircularCone,2> { IfcRightCircularCone() : Object("IfcRightCircularCone") {}
        IfcPositiveLengthMeasure::Out Height;
        IfcPositiveLengthMeasure::Out BottomRadius;
    };

    // C++ wrapper for IfcRightCircularCylinder
    struct IfcRightCircularCylinder : IfcCsgPrimitive3D, ObjectHelper<IfcRightCircularCylinder,2> { IfcRightCircularCylinder() : Object("IfcRightCircularCylinder") {}
        IfcPositiveLengthMeasure::Out Height;
        IfcPositiveLengthMeasure::Out Radius;
    };

    // C++ wrapper for IfcRoof
    struct IfcRoof : IfcBuildingElement, ObjectHelper<IfcRoof,1> { IfcRoof() : Object("IfcRoof") {}
        IfcRoofTypeEnum::Out ShapeType;
    };

    // C++ wrapper for IfcRoundedEdgeFeature
    struct IfcRoundedEdgeFeature : IfcEdgeFeature, ObjectHelper<IfcRoundedEdgeFeature,1> { IfcRoundedEdgeFeature() : Object("IfcRoundedEdgeFeature") {}
        Maybe< IfcPositiveLengthMeasure::Out > Radius;
    };

    // C++ wrapper for IfcRoundedRectangleProfileDef
    struct IfcRoundedRectangleProfileDef : IfcRectangleProfileDef, ObjectHelper<IfcRoundedRectangleProfileDef,1> { IfcRoundedRectangleProfileDef() : Object("IfcRoundedRectangleProfileDef") {}
        IfcPositiveLengthMeasure::Out RoundingRadius;
    };

    // C++ wrapper for IfcSIUnit
    struct IfcSIUnit : IfcNamedUnit, ObjectHelper<IfcSIUnit,2> { IfcSIUnit() : Object("IfcSIUnit") {}
        Maybe< IfcSIPrefix::Out > Prefix;
        IfcSIUnitName::Out Name;
    };

    // C++ wrapper for IfcSanitaryTerminalType
    struct IfcSanitaryTerminalType : IfcFlowTerminalType, ObjectHelper<IfcSanitaryTerminalType,1> { IfcSanitaryTerminalType() : Object("IfcSanitaryTerminalType") {}
        IfcSanitaryTerminalTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcScheduleTimeControl
    struct IfcScheduleTimeControl : IfcControl, ObjectHelper<IfcScheduleTimeControl,18> { IfcScheduleTimeControl() : Object("IfcScheduleTimeControl") {}
        Maybe< IfcDateTimeSelect::Out > ActualStart;
        Maybe< IfcDateTimeSelect::Out > EarlyStart;
        Maybe< IfcDateTimeSelect::Out > LateStart;
        Maybe< IfcDateTimeSelect::Out > ScheduleStart;
        Maybe< IfcDateTimeSelect::Out > ActualFinish;
        Maybe< IfcDateTimeSelect::Out > EarlyFinish;
        Maybe< IfcDateTimeSelect::Out > LateFinish;
        Maybe< IfcDateTimeSelect::Out > ScheduleFinish;
        Maybe< IfcTimeMeasure::Out > ScheduleDuration;
        Maybe< IfcTimeMeasure::Out > ActualDuration;
        Maybe< IfcTimeMeasure::Out > RemainingTime;
        Maybe< IfcTimeMeasure::Out > FreeFloat;
        Maybe< IfcTimeMeasure::Out > TotalFloat;
        Maybe< BOOLEAN::Out > IsCritical;
        Maybe< IfcDateTimeSelect::Out > StatusTime;
        Maybe< IfcTimeMeasure::Out > StartFloat;
        Maybe< IfcTimeMeasure::Out > FinishFloat;
        Maybe< IfcPositiveRatioMeasure::Out > Completion;
    };

    // C++ wrapper for IfcSectionedSpine
    struct IfcSectionedSpine : IfcGeometricRepresentationItem, ObjectHelper<IfcSectionedSpine,3> { IfcSectionedSpine() : Object("IfcSectionedSpine") {}
        Lazy< IfcCompositeCurve > SpineCurve;
        ListOf< Lazy< IfcProfileDef >, 2, 0 > CrossSections;
        ListOf< Lazy< IfcAxis2Placement3D >, 2, 0 > CrossSectionPositions;
    };

    // C++ wrapper for IfcSensorType
    struct IfcSensorType : IfcDistributionControlElementType, ObjectHelper<IfcSensorType,1> { IfcSensorType() : Object("IfcSensorType") {}
        IfcSensorTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcServiceLife
    struct IfcServiceLife : IfcControl, ObjectHelper<IfcServiceLife,2> { IfcServiceLife() : Object("IfcServiceLife") {}
        IfcServiceLifeTypeEnum::Out ServiceLifeType;
        IfcTimeMeasure::Out ServiceLifeDuration;
    };

    // C++ wrapper for IfcShapeModel
    struct IfcShapeModel : IfcRepresentation, ObjectHelper<IfcShapeModel,0> { IfcShapeModel() : Object("IfcShapeModel") {}

    };

    // C++ wrapper for IfcShapeRepresentation
    struct IfcShapeRepresentation : IfcShapeModel, ObjectHelper<IfcShapeRepresentation,0> { IfcShapeRepresentation() : Object("IfcShapeRepresentation") {}

    };

    // C++ wrapper for IfcShellBasedSurfaceModel
    struct IfcShellBasedSurfaceModel : IfcGeometricRepresentationItem, ObjectHelper<IfcShellBasedSurfaceModel,1> { IfcShellBasedSurfaceModel() : Object("IfcShellBasedSurfaceModel") {}
        ListOf< IfcShell, 1, 0 >::Out SbsmBoundary;
    };

    // C++ wrapper for IfcSite
    struct IfcSite : IfcSpatialStructureElement, ObjectHelper<IfcSite,5> { IfcSite() : Object("IfcSite") {}
        Maybe< IfcCompoundPlaneAngleMeasure::Out > RefLatitude;
        Maybe< IfcCompoundPlaneAngleMeasure::Out > RefLongitude;
        Maybe< IfcLengthMeasure::Out > RefElevation;
        Maybe< IfcLabel::Out > LandTitleNumber;
        Maybe< Lazy< NotImplemented > > SiteAddress;
    };

    // C++ wrapper for IfcSlab
    struct IfcSlab : IfcBuildingElement, ObjectHelper<IfcSlab,1> { IfcSlab() : Object("IfcSlab") {}
        Maybe< IfcSlabTypeEnum::Out > PredefinedType;
    };

    // C++ wrapper for IfcSlabType
    struct IfcSlabType : IfcBuildingElementType, ObjectHelper<IfcSlabType,1> { IfcSlabType() : Object("IfcSlabType") {}
        IfcSlabTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcSpace
    struct IfcSpace : IfcSpatialStructureElement, ObjectHelper<IfcSpace,2> { IfcSpace() : Object("IfcSpace") {}
        IfcInternalOrExternalEnum::Out InteriorOrExteriorSpace;
        Maybe< IfcLengthMeasure::Out > ElevationWithFlooring;
    };

    // C++ wrapper for IfcSpaceHeaterType
    struct IfcSpaceHeaterType : IfcEnergyConversionDeviceType, ObjectHelper<IfcSpaceHeaterType,1> { IfcSpaceHeaterType() : Object("IfcSpaceHeaterType") {}
        IfcSpaceHeaterTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcSpaceProgram
    struct IfcSpaceProgram : IfcControl, ObjectHelper<IfcSpaceProgram,5> { IfcSpaceProgram() : Object("IfcSpaceProgram") {}
        IfcIdentifier::Out SpaceProgramIdentifier;
        Maybe< IfcAreaMeasure::Out > MaxRequiredArea;
        Maybe< IfcAreaMeasure::Out > MinRequiredArea;
        Maybe< Lazy< IfcSpatialStructureElement > > RequestedLocation;
        IfcAreaMeasure::Out StandardRequiredArea;
    };

    // C++ wrapper for IfcSpatialStructureElementType
    struct IfcSpatialStructureElementType : IfcElementType, ObjectHelper<IfcSpatialStructureElementType,0> { IfcSpatialStructureElementType() : Object("IfcSpatialStructureElementType") {}

    };

    // C++ wrapper for IfcSpaceType
    struct IfcSpaceType : IfcSpatialStructureElementType, ObjectHelper<IfcSpaceType,1> { IfcSpaceType() : Object("IfcSpaceType") {}
        IfcSpaceTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcSphere
    struct IfcSphere : IfcCsgPrimitive3D, ObjectHelper<IfcSphere,1> { IfcSphere() : Object("IfcSphere") {}
        IfcPositiveLengthMeasure::Out Radius;
    };

    // C++ wrapper for IfcStackTerminalType
    struct IfcStackTerminalType : IfcFlowTerminalType, ObjectHelper<IfcStackTerminalType,1> { IfcStackTerminalType() : Object("IfcStackTerminalType") {}
        IfcStackTerminalTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcStair
    struct IfcStair : IfcBuildingElement, ObjectHelper<IfcStair,1> { IfcStair() : Object("IfcStair") {}
        IfcStairTypeEnum::Out ShapeType;
    };

    // C++ wrapper for IfcStairFlight
    struct IfcStairFlight : IfcBuildingElement, ObjectHelper<IfcStairFlight,4> { IfcStairFlight() : Object("IfcStairFlight") {}
        Maybe< INTEGER::Out > NumberOfRiser;
        Maybe< INTEGER::Out > NumberOfTreads;
        Maybe< IfcPositiveLengthMeasure::Out > RiserHeight;
        Maybe< IfcPositiveLengthMeasure::Out > TreadLength;
    };

    // C++ wrapper for IfcStairFlightType
    struct IfcStairFlightType : IfcBuildingElementType, ObjectHelper<IfcStairFlightType,1> { IfcStairFlightType() : Object("IfcStairFlightType") {}
        IfcStairFlightTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcStructuralActivity
    struct IfcStructuralActivity : IfcProduct, ObjectHelper<IfcStructuralActivity,2> { IfcStructuralActivity() : Object("IfcStructuralActivity") {}
        Lazy< NotImplemented > AppliedLoad;
        IfcGlobalOrLocalEnum::Out GlobalOrLocal;
    };

    // C++ wrapper for IfcStructuralAction
    struct IfcStructuralAction : IfcStructuralActivity, ObjectHelper<IfcStructuralAction,2> { IfcStructuralAction() : Object("IfcStructuralAction") {}
        BOOLEAN::Out DestabilizingLoad;
        Maybe< Lazy< IfcStructuralReaction > > CausedBy;
    };

    // C++ wrapper for IfcStructuralAnalysisModel
    struct IfcStructuralAnalysisModel : IfcSystem, ObjectHelper<IfcStructuralAnalysisModel,4> { IfcStructuralAnalysisModel() : Object("IfcStructuralAnalysisModel") {}
        IfcAnalysisModelTypeEnum::Out PredefinedType;
        Maybe< Lazy< IfcAxis2Placement3D > > OrientationOf2DPlane;
        Maybe< ListOf< Lazy< IfcStructuralLoadGroup >, 1, 0 > > LoadedBy;
        Maybe< ListOf< Lazy< IfcStructuralResultGroup >, 1, 0 > > HasResults;
    };

    // C++ wrapper for IfcStructuralItem
    struct IfcStructuralItem : IfcProduct, ObjectHelper<IfcStructuralItem,0> { IfcStructuralItem() : Object("IfcStructuralItem") {}

    };

    // C++ wrapper for IfcStructuralConnection
    struct IfcStructuralConnection : IfcStructuralItem, ObjectHelper<IfcStructuralConnection,1> { IfcStructuralConnection() : Object("IfcStructuralConnection") {}
        Maybe< Lazy< NotImplemented > > AppliedCondition;
    };

    // C++ wrapper for IfcStructuralCurveConnection
    struct IfcStructuralCurveConnection : IfcStructuralConnection, ObjectHelper<IfcStructuralCurveConnection,0> { IfcStructuralCurveConnection() : Object("IfcStructuralCurveConnection") {}

    };

    // C++ wrapper for IfcStructuralMember
    struct IfcStructuralMember : IfcStructuralItem, ObjectHelper<IfcStructuralMember,0> { IfcStructuralMember() : Object("IfcStructuralMember") {}

    };

    // C++ wrapper for IfcStructuralCurveMember
    struct IfcStructuralCurveMember : IfcStructuralMember, ObjectHelper<IfcStructuralCurveMember,1> { IfcStructuralCurveMember() : Object("IfcStructuralCurveMember") {}
        IfcStructuralCurveTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcStructuralCurveMemberVarying
    struct IfcStructuralCurveMemberVarying : IfcStructuralCurveMember, ObjectHelper<IfcStructuralCurveMemberVarying,0> { IfcStructuralCurveMemberVarying() : Object("IfcStructuralCurveMemberVarying") {}

    };

    // C++ wrapper for IfcStructuralLinearAction
    struct IfcStructuralLinearAction : IfcStructuralAction, ObjectHelper<IfcStructuralLinearAction,1> { IfcStructuralLinearAction() : Object("IfcStructuralLinearAction") {}
        IfcProjectedOrTrueLengthEnum::Out ProjectedOrTrue;
    };

    // C++ wrapper for IfcStructuralLinearActionVarying
    struct IfcStructuralLinearActionVarying : IfcStructuralLinearAction, ObjectHelper<IfcStructuralLinearActionVarying,2> { IfcStructuralLinearActionVarying() : Object("IfcStructuralLinearActionVarying") {}
        Lazy< NotImplemented > VaryingAppliedLoadLocation;
        ListOf< Lazy< NotImplemented >, 1, 0 > SubsequentAppliedLoads;
    };

    // C++ wrapper for IfcStructuralLoadGroup
    struct IfcStructuralLoadGroup : IfcGroup, ObjectHelper<IfcStructuralLoadGroup,5> { IfcStructuralLoadGroup() : Object("IfcStructuralLoadGroup") {}
        IfcLoadGroupTypeEnum::Out PredefinedType;
        IfcActionTypeEnum::Out ActionType;
        IfcActionSourceTypeEnum::Out ActionSource;
        Maybe< IfcPositiveRatioMeasure::Out > Coefficient;
        Maybe< IfcLabel::Out > Purpose;
    };

    // C++ wrapper for IfcStructuralPlanarAction
    struct IfcStructuralPlanarAction : IfcStructuralAction, ObjectHelper<IfcStructuralPlanarAction,1> { IfcStructuralPlanarAction() : Object("IfcStructuralPlanarAction") {}
        IfcProjectedOrTrueLengthEnum::Out ProjectedOrTrue;
    };

    // C++ wrapper for IfcStructuralPlanarActionVarying
    struct IfcStructuralPlanarActionVarying : IfcStructuralPlanarAction, ObjectHelper<IfcStructuralPlanarActionVarying,2> { IfcStructuralPlanarActionVarying() : Object("IfcStructuralPlanarActionVarying") {}
        Lazy< NotImplemented > VaryingAppliedLoadLocation;
        ListOf< Lazy< NotImplemented >, 2, 0 > SubsequentAppliedLoads;
    };

    // C++ wrapper for IfcStructuralPointAction
    struct IfcStructuralPointAction : IfcStructuralAction, ObjectHelper<IfcStructuralPointAction,0> { IfcStructuralPointAction() : Object("IfcStructuralPointAction") {}

    };

    // C++ wrapper for IfcStructuralPointConnection
    struct IfcStructuralPointConnection : IfcStructuralConnection, ObjectHelper<IfcStructuralPointConnection,0> { IfcStructuralPointConnection() : Object("IfcStructuralPointConnection") {}

    };

    // C++ wrapper for IfcStructuralReaction
    struct IfcStructuralReaction : IfcStructuralActivity, ObjectHelper<IfcStructuralReaction,0> { IfcStructuralReaction() : Object("IfcStructuralReaction") {}

    };

    // C++ wrapper for IfcStructuralPointReaction
    struct IfcStructuralPointReaction : IfcStructuralReaction, ObjectHelper<IfcStructuralPointReaction,0> { IfcStructuralPointReaction() : Object("IfcStructuralPointReaction") {}

    };

    // C++ wrapper for IfcStructuralResultGroup
    struct IfcStructuralResultGroup : IfcGroup, ObjectHelper<IfcStructuralResultGroup,3> { IfcStructuralResultGroup() : Object("IfcStructuralResultGroup") {}
        IfcAnalysisTheoryTypeEnum::Out TheoryType;
        Maybe< Lazy< IfcStructuralLoadGroup > > ResultForLoadGroup;
        BOOLEAN::Out IsLinear;
    };

    // C++ wrapper for IfcStructuralSurfaceConnection
    struct IfcStructuralSurfaceConnection : IfcStructuralConnection, ObjectHelper<IfcStructuralSurfaceConnection,0> { IfcStructuralSurfaceConnection() : Object("IfcStructuralSurfaceConnection") {}

    };

    // C++ wrapper for IfcStructuralSurfaceMember
    struct IfcStructuralSurfaceMember : IfcStructuralMember, ObjectHelper<IfcStructuralSurfaceMember,2> { IfcStructuralSurfaceMember() : Object("IfcStructuralSurfaceMember") {}
        IfcStructuralSurfaceTypeEnum::Out PredefinedType;
        Maybe< IfcPositiveLengthMeasure::Out > Thickness;
    };

    // C++ wrapper for IfcStructuralSurfaceMemberVarying
    struct IfcStructuralSurfaceMemberVarying : IfcStructuralSurfaceMember, ObjectHelper<IfcStructuralSurfaceMemberVarying,2> { IfcStructuralSurfaceMemberVarying() : Object("IfcStructuralSurfaceMemberVarying") {}
        ListOf< IfcPositiveLengthMeasure, 2, 0 >::Out SubsequentThickness;
        Lazy< NotImplemented > VaryingThicknessLocation;
    };

    // C++ wrapper for IfcStructuredDimensionCallout
    struct IfcStructuredDimensionCallout : IfcDraughtingCallout, ObjectHelper<IfcStructuredDimensionCallout,0> { IfcStructuredDimensionCallout() : Object("IfcStructuredDimensionCallout") {}

    };

    // C++ wrapper for IfcStyleModel
    struct IfcStyleModel : IfcRepresentation, ObjectHelper<IfcStyleModel,0> { IfcStyleModel() : Object("IfcStyleModel") {}

    };

    // C++ wrapper for IfcStyledRepresentation
    struct IfcStyledRepresentation : IfcStyleModel, ObjectHelper<IfcStyledRepresentation,0> { IfcStyledRepresentation() : Object("IfcStyledRepresentation") {}

    };

    // C++ wrapper for IfcSubContractResource
    struct IfcSubContractResource : IfcConstructionResource, ObjectHelper<IfcSubContractResource,2> { IfcSubContractResource() : Object("IfcSubContractResource") {}
        Maybe< IfcActorSelect::Out > SubContractor;
        Maybe< IfcText::Out > JobDescription;
    };

    // C++ wrapper for IfcSubedge
    struct IfcSubedge : IfcEdge, ObjectHelper<IfcSubedge,1> { IfcSubedge() : Object("IfcSubedge") {}
        Lazy< IfcEdge > ParentEdge;
    };

    // C++ wrapper for IfcSurfaceCurveSweptAreaSolid
    struct IfcSurfaceCurveSweptAreaSolid : IfcSweptAreaSolid, ObjectHelper<IfcSurfaceCurveSweptAreaSolid,4> { IfcSurfaceCurveSweptAreaSolid() : Object("IfcSurfaceCurveSweptAreaSolid") {}
        Lazy< IfcCurve > Directrix;
        IfcParameterValue::Out StartParam;
        IfcParameterValue::Out EndParam;
        Lazy< IfcSurface > ReferenceSurface;
    };

    // C++ wrapper for IfcSweptSurface
    struct IfcSweptSurface : IfcSurface, ObjectHelper<IfcSweptSurface,2> { IfcSweptSurface() : Object("IfcSweptSurface") {}
        Lazy< IfcProfileDef > SweptCurve;
        Lazy< IfcAxis2Placement3D > Position;
    };

    // C++ wrapper for IfcSurfaceOfLinearExtrusion
    struct IfcSurfaceOfLinearExtrusion : IfcSweptSurface, ObjectHelper<IfcSurfaceOfLinearExtrusion,2> { IfcSurfaceOfLinearExtrusion() : Object("IfcSurfaceOfLinearExtrusion") {}
        Lazy< IfcDirection > ExtrudedDirection;
        IfcLengthMeasure::Out Depth;
    };

    // C++ wrapper for IfcSurfaceOfRevolution
    struct IfcSurfaceOfRevolution : IfcSweptSurface, ObjectHelper<IfcSurfaceOfRevolution,1> { IfcSurfaceOfRevolution() : Object("IfcSurfaceOfRevolution") {}
        Lazy< IfcAxis1Placement > AxisPosition;
    };

    // C++ wrapper for IfcSurfaceStyle
    struct IfcSurfaceStyle : IfcPresentationStyle, ObjectHelper<IfcSurfaceStyle,2> { IfcSurfaceStyle() : Object("IfcSurfaceStyle") {}
        IfcSurfaceSide::Out Side;
        ListOf< IfcSurfaceStyleElementSelect, 1, 5 >::Out Styles;
    };

    // C++ wrapper for IfcSurfaceStyleShading
    struct IfcSurfaceStyleShading :  ObjectHelper<IfcSurfaceStyleShading,1> { IfcSurfaceStyleShading() : Object("IfcSurfaceStyleShading") {}
        Lazy< IfcColourRgb > SurfaceColour;
    };

    // C++ wrapper for IfcSurfaceStyleRendering
    struct IfcSurfaceStyleRendering : IfcSurfaceStyleShading, ObjectHelper<IfcSurfaceStyleRendering,8> { IfcSurfaceStyleRendering() : Object("IfcSurfaceStyleRendering") {}
        Maybe< IfcNormalisedRatioMeasure::Out > Transparency;
        Maybe< IfcColourOrFactor::Out > DiffuseColour;
        Maybe< IfcColourOrFactor::Out > TransmissionColour;
        Maybe< IfcColourOrFactor::Out > DiffuseTransmissionColour;
        Maybe< IfcColourOrFactor::Out > ReflectionColour;
        Maybe< IfcColourOrFactor::Out > SpecularColour;
        Maybe< IfcSpecularHighlightSelect::Out > SpecularHighlight;
        IfcReflectanceMethodEnum::Out ReflectanceMethod;
    };

    // C++ wrapper for IfcSurfaceStyleWithTextures
    struct IfcSurfaceStyleWithTextures :  ObjectHelper<IfcSurfaceStyleWithTextures,1> { IfcSurfaceStyleWithTextures() : Object("IfcSurfaceStyleWithTextures") {}
        ListOf< Lazy< NotImplemented >, 1, 0 > Textures;
    };

    // C++ wrapper for IfcSweptDiskSolid
    struct IfcSweptDiskSolid : IfcSolidModel, ObjectHelper<IfcSweptDiskSolid,5> { IfcSweptDiskSolid() : Object("IfcSweptDiskSolid") {}
        Lazy< IfcCurve > Directrix;
        IfcPositiveLengthMeasure::Out Radius;
        Maybe< IfcPositiveLengthMeasure::Out > InnerRadius;
        IfcParameterValue::Out StartParam;
        IfcParameterValue::Out EndParam;
    };

    // C++ wrapper for IfcSwitchingDeviceType
    struct IfcSwitchingDeviceType : IfcFlowControllerType, ObjectHelper<IfcSwitchingDeviceType,1> { IfcSwitchingDeviceType() : Object("IfcSwitchingDeviceType") {}
        IfcSwitchingDeviceTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcSystemFurnitureElementType
    struct IfcSystemFurnitureElementType : IfcFurnishingElementType, ObjectHelper<IfcSystemFurnitureElementType,0> { IfcSystemFurnitureElementType() : Object("IfcSystemFurnitureElementType") {}

    };

    // C++ wrapper for IfcTShapeProfileDef
    struct IfcTShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcTShapeProfileDef,10> { IfcTShapeProfileDef() : Object("IfcTShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out Depth;
        IfcPositiveLengthMeasure::Out FlangeWidth;
        IfcPositiveLengthMeasure::Out WebThickness;
        IfcPositiveLengthMeasure::Out FlangeThickness;
        Maybe< IfcPositiveLengthMeasure::Out > FilletRadius;
        Maybe< IfcPositiveLengthMeasure::Out > FlangeEdgeRadius;
        Maybe< IfcPositiveLengthMeasure::Out > WebEdgeRadius;
        Maybe< IfcPlaneAngleMeasure::Out > WebSlope;
        Maybe< IfcPlaneAngleMeasure::Out > FlangeSlope;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInY;
    };

    // C++ wrapper for IfcTankType
    struct IfcTankType : IfcFlowStorageDeviceType, ObjectHelper<IfcTankType,1> { IfcTankType() : Object("IfcTankType") {}
        IfcTankTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcTendon
    struct IfcTendon : IfcReinforcingElement, ObjectHelper<IfcTendon,8> { IfcTendon() : Object("IfcTendon") {}
        IfcTendonTypeEnum::Out PredefinedType;
        IfcPositiveLengthMeasure::Out NominalDiameter;
        IfcAreaMeasure::Out CrossSectionArea;
        Maybe< IfcForceMeasure::Out > TensionForce;
        Maybe< IfcPressureMeasure::Out > PreStress;
        Maybe< IfcNormalisedRatioMeasure::Out > FrictionCoefficient;
        Maybe< IfcPositiveLengthMeasure::Out > AnchorageSlip;
        Maybe< IfcPositiveLengthMeasure::Out > MinCurvatureRadius;
    };

    // C++ wrapper for IfcTendonAnchor
    struct IfcTendonAnchor : IfcReinforcingElement, ObjectHelper<IfcTendonAnchor,0> { IfcTendonAnchor() : Object("IfcTendonAnchor") {}

    };

    // C++ wrapper for IfcTextLiteral
    struct IfcTextLiteral : IfcGeometricRepresentationItem, ObjectHelper<IfcTextLiteral,3> { IfcTextLiteral() : Object("IfcTextLiteral") {}
        IfcPresentableText::Out Literal;
        IfcAxis2Placement::Out Placement;
        IfcTextPath::Out Path;
    };

    // C++ wrapper for IfcTextLiteralWithExtent
    struct IfcTextLiteralWithExtent : IfcTextLiteral, ObjectHelper<IfcTextLiteralWithExtent,2> { IfcTextLiteralWithExtent() : Object("IfcTextLiteralWithExtent") {}
        Lazy< IfcPlanarExtent > Extent;
        IfcBoxAlignment::Out BoxAlignment;
    };

    // C++ wrapper for IfcTimeSeriesSchedule
    struct IfcTimeSeriesSchedule : IfcControl, ObjectHelper<IfcTimeSeriesSchedule,3> { IfcTimeSeriesSchedule() : Object("IfcTimeSeriesSchedule") {}
        Maybe< ListOf< IfcDateTimeSelect, 1, 0 >::Out > ApplicableDates;
        IfcTimeSeriesScheduleTypeEnum::Out TimeSeriesScheduleType;
        Lazy< NotImplemented > TimeSeries;
    };

    // C++ wrapper for IfcTopologyRepresentation
    struct IfcTopologyRepresentation : IfcShapeModel, ObjectHelper<IfcTopologyRepresentation,0> { IfcTopologyRepresentation() : Object("IfcTopologyRepresentation") {}

    };

    // C++ wrapper for IfcTransformerType
    struct IfcTransformerType : IfcEnergyConversionDeviceType, ObjectHelper<IfcTransformerType,1> { IfcTransformerType() : Object("IfcTransformerType") {}
        IfcTransformerTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcTransportElement
    struct IfcTransportElement : IfcElement, ObjectHelper<IfcTransportElement,3> { IfcTransportElement() : Object("IfcTransportElement") {}
        Maybe< IfcTransportElementTypeEnum::Out > OperationType;
        Maybe< IfcMassMeasure::Out > CapacityByWeight;
        Maybe< IfcCountMeasure::Out > CapacityByNumber;
    };

    // C++ wrapper for IfcTransportElementType
    struct IfcTransportElementType : IfcElementType, ObjectHelper<IfcTransportElementType,1> { IfcTransportElementType() : Object("IfcTransportElementType") {}
        IfcTransportElementTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcTrapeziumProfileDef
    struct IfcTrapeziumProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcTrapeziumProfileDef,4> { IfcTrapeziumProfileDef() : Object("IfcTrapeziumProfileDef") {}
        IfcPositiveLengthMeasure::Out BottomXDim;
        IfcPositiveLengthMeasure::Out TopXDim;
        IfcPositiveLengthMeasure::Out YDim;
        IfcLengthMeasure::Out TopXOffset;
    };

    // C++ wrapper for IfcTrimmedCurve
    struct IfcTrimmedCurve : IfcBoundedCurve, ObjectHelper<IfcTrimmedCurve,5> { IfcTrimmedCurve() : Object("IfcTrimmedCurve") {}
        Lazy< IfcCurve > BasisCurve;
        ListOf< IfcTrimmingSelect, 1, 2 >::Out Trim1;
        ListOf< IfcTrimmingSelect, 1, 2 >::Out Trim2;
        BOOLEAN::Out SenseAgreement;
        IfcTrimmingPreference::Out MasterRepresentation;
    };

    // C++ wrapper for IfcTubeBundleType
    struct IfcTubeBundleType : IfcEnergyConversionDeviceType, ObjectHelper<IfcTubeBundleType,1> { IfcTubeBundleType() : Object("IfcTubeBundleType") {}
        IfcTubeBundleTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcTwoDirectionRepeatFactor
    struct IfcTwoDirectionRepeatFactor : IfcOneDirectionRepeatFactor, ObjectHelper<IfcTwoDirectionRepeatFactor,1> { IfcTwoDirectionRepeatFactor() : Object("IfcTwoDirectionRepeatFactor") {}
        Lazy< IfcVector > SecondRepeatFactor;
    };

    // C++ wrapper for IfcUShapeProfileDef
    struct IfcUShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcUShapeProfileDef,8> { IfcUShapeProfileDef() : Object("IfcUShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out Depth;
        IfcPositiveLengthMeasure::Out FlangeWidth;
        IfcPositiveLengthMeasure::Out WebThickness;
        IfcPositiveLengthMeasure::Out FlangeThickness;
        Maybe< IfcPositiveLengthMeasure::Out > FilletRadius;
        Maybe< IfcPositiveLengthMeasure::Out > EdgeRadius;
        Maybe< IfcPlaneAngleMeasure::Out > FlangeSlope;
        Maybe< IfcPositiveLengthMeasure::Out > CentreOfGravityInX;
    };

    // C++ wrapper for IfcUnitAssignment
    struct IfcUnitAssignment :  ObjectHelper<IfcUnitAssignment,1> { IfcUnitAssignment() : Object("IfcUnitAssignment") {}
        ListOf< IfcUnit, 1, 0 >::Out Units;
    };

    // C++ wrapper for IfcUnitaryEquipmentType
    struct IfcUnitaryEquipmentType : IfcEnergyConversionDeviceType, ObjectHelper<IfcUnitaryEquipmentType,1> { IfcUnitaryEquipmentType() : Object("IfcUnitaryEquipmentType") {}
        IfcUnitaryEquipmentTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcValveType
    struct IfcValveType : IfcFlowControllerType, ObjectHelper<IfcValveType,1> { IfcValveType() : Object("IfcValveType") {}
        IfcValveTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcVector
    struct IfcVector : IfcGeometricRepresentationItem, ObjectHelper<IfcVector,2> { IfcVector() : Object("IfcVector") {}
        Lazy< IfcDirection > Orientation;
        IfcLengthMeasure::Out Magnitude;
    };

    // C++ wrapper for IfcVertex
    struct IfcVertex : IfcTopologicalRepresentationItem, ObjectHelper<IfcVertex,0> { IfcVertex() : Object("IfcVertex") {}

    };

    // C++ wrapper for IfcVertexLoop
    struct IfcVertexLoop : IfcLoop, ObjectHelper<IfcVertexLoop,1> { IfcVertexLoop() : Object("IfcVertexLoop") {}
        Lazy< IfcVertex > LoopVertex;
    };

    // C++ wrapper for IfcVertexPoint
    struct IfcVertexPoint : IfcVertex, ObjectHelper<IfcVertexPoint,1> { IfcVertexPoint() : Object("IfcVertexPoint") {}
        Lazy< IfcPoint > VertexGeometry;
    };

    // C++ wrapper for IfcVibrationIsolatorType
    struct IfcVibrationIsolatorType : IfcDiscreteAccessoryType, ObjectHelper<IfcVibrationIsolatorType,1> { IfcVibrationIsolatorType() : Object("IfcVibrationIsolatorType") {}
        IfcVibrationIsolatorTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcVirtualElement
    struct IfcVirtualElement : IfcElement, ObjectHelper<IfcVirtualElement,0> { IfcVirtualElement() : Object("IfcVirtualElement") {}

    };

    // C++ wrapper for IfcWall
    struct IfcWall : IfcBuildingElement, ObjectHelper<IfcWall,0> { IfcWall() : Object("IfcWall") {}

    };

    // C++ wrapper for IfcWallStandardCase
    struct IfcWallStandardCase : IfcWall, ObjectHelper<IfcWallStandardCase,0> { IfcWallStandardCase() : Object("IfcWallStandardCase") {}

    };

    // C++ wrapper for IfcWallType
    struct IfcWallType : IfcBuildingElementType, ObjectHelper<IfcWallType,1> { IfcWallType() : Object("IfcWallType") {}
        IfcWallTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcWasteTerminalType
    struct IfcWasteTerminalType : IfcFlowTerminalType, ObjectHelper<IfcWasteTerminalType,1> { IfcWasteTerminalType() : Object("IfcWasteTerminalType") {}
        IfcWasteTerminalTypeEnum::Out PredefinedType;
    };

    // C++ wrapper for IfcWindow
    struct IfcWindow : IfcBuildingElement, ObjectHelper<IfcWindow,2> { IfcWindow() : Object("IfcWindow") {}
        Maybe< IfcPositiveLengthMeasure::Out > OverallHeight;
        Maybe< IfcPositiveLengthMeasure::Out > OverallWidth;
    };

    // C++ wrapper for IfcWindowStyle
    struct IfcWindowStyle : IfcTypeProduct, ObjectHelper<IfcWindowStyle,4> { IfcWindowStyle() : Object("IfcWindowStyle") {}
        IfcWindowStyleConstructionEnum::Out ConstructionType;
        IfcWindowStyleOperationEnum::Out OperationType;
        BOOLEAN::Out ParameterTakesPrecedence;
        BOOLEAN::Out Sizeable;
    };

    // C++ wrapper for IfcWorkControl
    struct IfcWorkControl : IfcControl, ObjectHelper<IfcWorkControl,10> { IfcWorkControl() : Object("IfcWorkControl") {}
        IfcIdentifier::Out Identifier;
        IfcDateTimeSelect::Out CreationDate;
        Maybe< ListOf< Lazy< NotImplemented >, 1, 0 > > Creators;
        Maybe< IfcLabel::Out > Purpose;
        Maybe< IfcTimeMeasure::Out > Duration;
        Maybe< IfcTimeMeasure::Out > TotalFloat;
        IfcDateTimeSelect::Out StartTime;
        Maybe< IfcDateTimeSelect::Out > FinishTime;
        Maybe< IfcWorkControlTypeEnum::Out > WorkControlType;
        Maybe< IfcLabel::Out > UserDefinedControlType;
    };

    // C++ wrapper for IfcWorkPlan
    struct IfcWorkPlan : IfcWorkControl, ObjectHelper<IfcWorkPlan,0> { IfcWorkPlan() : Object("IfcWorkPlan") {}

    };

    // C++ wrapper for IfcWorkSchedule
    struct IfcWorkSchedule : IfcWorkControl, ObjectHelper<IfcWorkSchedule,0> { IfcWorkSchedule() : Object("IfcWorkSchedule") {}

    };

    // C++ wrapper for IfcZShapeProfileDef
    struct IfcZShapeProfileDef : IfcParameterizedProfileDef, ObjectHelper<IfcZShapeProfileDef,6> { IfcZShapeProfileDef() : Object("IfcZShapeProfileDef") {}
        IfcPositiveLengthMeasure::Out Depth;
        IfcPositiveLengthMeasure::Out FlangeWidth;
        IfcPositiveLengthMeasure::Out WebThickness;
        IfcPositiveLengthMeasure::Out FlangeThickness;
        Maybe< IfcPositiveLengthMeasure::Out > FilletRadius;
        Maybe< IfcPositiveLengthMeasure::Out > EdgeRadius;
    };

    // C++ wrapper for IfcZone
    struct IfcZone : IfcGroup, ObjectHelper<IfcZone,0> { IfcZone() : Object("IfcZone") {}

    };

    void GetSchema(EXPRESS::ConversionSchema& out);

} //! IFC
namespace STEP {

    // ******************************************************************************
    // Converter stubs
    // ******************************************************************************

#define DECL_CONV_STUB(type) template <> size_t GenericFill<IFC::type>(const STEP::DB& db, const EXPRESS::LIST& params, IFC::type* in)

    DECL_CONV_STUB(IfcRepresentationItem);
    DECL_CONV_STUB(IfcGeometricRepresentationItem);
    DECL_CONV_STUB(IfcCurve);
    DECL_CONV_STUB(IfcBoundedCurve);
    DECL_CONV_STUB(IfcCompositeCurve);
    DECL_CONV_STUB(Ifc2DCompositeCurve);
    DECL_CONV_STUB(IfcRoot);
    DECL_CONV_STUB(IfcObjectDefinition);
    DECL_CONV_STUB(IfcObject);
    DECL_CONV_STUB(IfcControl);
    DECL_CONV_STUB(IfcActionRequest);
    DECL_CONV_STUB(IfcActor);
    DECL_CONV_STUB(IfcTypeObject);
    DECL_CONV_STUB(IfcTypeProduct);
    DECL_CONV_STUB(IfcElementType);
    DECL_CONV_STUB(IfcDistributionElementType);
    DECL_CONV_STUB(IfcDistributionControlElementType);
    DECL_CONV_STUB(IfcActuatorType);
    DECL_CONV_STUB(IfcDistributionFlowElementType);
    DECL_CONV_STUB(IfcFlowControllerType);
    DECL_CONV_STUB(IfcAirTerminalBoxType);
    DECL_CONV_STUB(IfcFlowTerminalType);
    DECL_CONV_STUB(IfcAirTerminalType);
    DECL_CONV_STUB(IfcEnergyConversionDeviceType);
    DECL_CONV_STUB(IfcAirToAirHeatRecoveryType);
    DECL_CONV_STUB(IfcAlarmType);
    DECL_CONV_STUB(IfcDraughtingCallout);
    DECL_CONV_STUB(IfcDimensionCurveDirectedCallout);
    DECL_CONV_STUB(IfcAngularDimension);
    DECL_CONV_STUB(IfcProduct);
    DECL_CONV_STUB(IfcAnnotation);
    DECL_CONV_STUB(IfcStyledItem);
    DECL_CONV_STUB(IfcAnnotationOccurrence);
    DECL_CONV_STUB(IfcAnnotationCurveOccurrence);
    DECL_CONV_STUB(IfcAnnotationFillArea);
    DECL_CONV_STUB(IfcAnnotationFillAreaOccurrence);
    DECL_CONV_STUB(IfcAnnotationSurface);
    DECL_CONV_STUB(IfcAnnotationSurfaceOccurrence);
    DECL_CONV_STUB(IfcAnnotationSymbolOccurrence);
    DECL_CONV_STUB(IfcAnnotationTextOccurrence);
    DECL_CONV_STUB(IfcProfileDef);
    DECL_CONV_STUB(IfcArbitraryClosedProfileDef);
    DECL_CONV_STUB(IfcArbitraryOpenProfileDef);
    DECL_CONV_STUB(IfcArbitraryProfileDefWithVoids);
    DECL_CONV_STUB(IfcGroup);
    DECL_CONV_STUB(IfcAsset);
    DECL_CONV_STUB(IfcParameterizedProfileDef);
    DECL_CONV_STUB(IfcIShapeProfileDef);
    DECL_CONV_STUB(IfcAsymmetricIShapeProfileDef);
    DECL_CONV_STUB(IfcPlacement);
    DECL_CONV_STUB(IfcAxis1Placement);
    DECL_CONV_STUB(IfcAxis2Placement2D);
    DECL_CONV_STUB(IfcAxis2Placement3D);
    DECL_CONV_STUB(IfcBSplineCurve);
    DECL_CONV_STUB(IfcElement);
    DECL_CONV_STUB(IfcBuildingElement);
    DECL_CONV_STUB(IfcBeam);
    DECL_CONV_STUB(IfcBuildingElementType);
    DECL_CONV_STUB(IfcBeamType);
    DECL_CONV_STUB(IfcBezierCurve);
    DECL_CONV_STUB(IfcCsgPrimitive3D);
    DECL_CONV_STUB(IfcBlock);
    DECL_CONV_STUB(IfcBoilerType);
    DECL_CONV_STUB(IfcBooleanResult);
    DECL_CONV_STUB(IfcBooleanClippingResult);
    DECL_CONV_STUB(IfcSurface);
    DECL_CONV_STUB(IfcBoundedSurface);
    DECL_CONV_STUB(IfcBoundingBox);
    DECL_CONV_STUB(IfcHalfSpaceSolid);
    DECL_CONV_STUB(IfcBoxedHalfSpace);
    DECL_CONV_STUB(IfcSpatialStructureElement);
    DECL_CONV_STUB(IfcBuilding);
    DECL_CONV_STUB(IfcBuildingElementComponent);
    DECL_CONV_STUB(IfcBuildingElementPart);
    DECL_CONV_STUB(IfcBuildingElementProxy);
    DECL_CONV_STUB(IfcBuildingElementProxyType);
    DECL_CONV_STUB(IfcBuildingStorey);
    DECL_CONV_STUB(IfcCShapeProfileDef);
    DECL_CONV_STUB(IfcFlowFittingType);
    DECL_CONV_STUB(IfcCableCarrierFittingType);
    DECL_CONV_STUB(IfcFlowSegmentType);
    DECL_CONV_STUB(IfcCableCarrierSegmentType);
    DECL_CONV_STUB(IfcCableSegmentType);
    DECL_CONV_STUB(IfcPoint);
    DECL_CONV_STUB(IfcCartesianPoint);
    DECL_CONV_STUB(IfcCartesianTransformationOperator);
    DECL_CONV_STUB(IfcCartesianTransformationOperator2D);
    DECL_CONV_STUB(IfcCartesianTransformationOperator2DnonUniform);
    DECL_CONV_STUB(IfcCartesianTransformationOperator3D);
    DECL_CONV_STUB(IfcCartesianTransformationOperator3DnonUniform);
    DECL_CONV_STUB(IfcCenterLineProfileDef);
    DECL_CONV_STUB(IfcFeatureElement);
    DECL_CONV_STUB(IfcFeatureElementSubtraction);
    DECL_CONV_STUB(IfcEdgeFeature);
    DECL_CONV_STUB(IfcChamferEdgeFeature);
    DECL_CONV_STUB(IfcChillerType);
    DECL_CONV_STUB(IfcConic);
    DECL_CONV_STUB(IfcCircle);
    DECL_CONV_STUB(IfcCircleProfileDef);
    DECL_CONV_STUB(IfcCircleHollowProfileDef);
    DECL_CONV_STUB(IfcTopologicalRepresentationItem);
    DECL_CONV_STUB(IfcConnectedFaceSet);
    DECL_CONV_STUB(IfcClosedShell);
    DECL_CONV_STUB(IfcCoilType);
    DECL_CONV_STUB(IfcColourSpecification);
    DECL_CONV_STUB(IfcColourRgb);
    DECL_CONV_STUB(IfcColumn);
    DECL_CONV_STUB(IfcColumnType);
    DECL_CONV_STUB(IfcProperty);
    DECL_CONV_STUB(IfcComplexProperty);
    DECL_CONV_STUB(IfcCompositeCurveSegment);
    DECL_CONV_STUB(IfcCompositeProfileDef);
    DECL_CONV_STUB(IfcFlowMovingDeviceType);
    DECL_CONV_STUB(IfcCompressorType);
    DECL_CONV_STUB(IfcCondenserType);
    DECL_CONV_STUB(IfcCondition);
    DECL_CONV_STUB(IfcConditionCriterion);
    DECL_CONV_STUB(IfcResource);
    DECL_CONV_STUB(IfcConstructionResource);
    DECL_CONV_STUB(IfcConstructionEquipmentResource);
    DECL_CONV_STUB(IfcConstructionMaterialResource);
    DECL_CONV_STUB(IfcConstructionProductResource);
    DECL_CONV_STUB(IfcNamedUnit);
    DECL_CONV_STUB(IfcContextDependentUnit);
    DECL_CONV_STUB(IfcControllerType);
    DECL_CONV_STUB(IfcConversionBasedUnit);
    DECL_CONV_STUB(IfcCooledBeamType);
    DECL_CONV_STUB(IfcCoolingTowerType);
    DECL_CONV_STUB(IfcCostItem);
    DECL_CONV_STUB(IfcCostSchedule);
    DECL_CONV_STUB(IfcCovering);
    DECL_CONV_STUB(IfcCoveringType);
    DECL_CONV_STUB(IfcCraneRailAShapeProfileDef);
    DECL_CONV_STUB(IfcCraneRailFShapeProfileDef);
    DECL_CONV_STUB(IfcCrewResource);
    DECL_CONV_STUB(IfcSolidModel);
    DECL_CONV_STUB(IfcCsgSolid);
    DECL_CONV_STUB(IfcCurtainWall);
    DECL_CONV_STUB(IfcCurtainWallType);
    DECL_CONV_STUB(IfcCurveBoundedPlane);
    DECL_CONV_STUB(IfcPresentationStyle);
    DECL_CONV_STUB(IfcDamperType);
    DECL_CONV_STUB(IfcDefinedSymbol);
    DECL_CONV_STUB(IfcDerivedProfileDef);
    DECL_CONV_STUB(IfcDiameterDimension);
    DECL_CONV_STUB(IfcDimensionCurve);
    DECL_CONV_STUB(IfcTerminatorSymbol);
    DECL_CONV_STUB(IfcDimensionCurveTerminator);
    DECL_CONV_STUB(IfcDirection);
    DECL_CONV_STUB(IfcElementComponent);
    DECL_CONV_STUB(IfcDiscreteAccessory);
    DECL_CONV_STUB(IfcElementComponentType);
    DECL_CONV_STUB(IfcDiscreteAccessoryType);
    DECL_CONV_STUB(IfcDistributionElement);
    DECL_CONV_STUB(IfcDistributionFlowElement);
    DECL_CONV_STUB(IfcDistributionChamberElement);
    DECL_CONV_STUB(IfcDistributionChamberElementType);
    DECL_CONV_STUB(IfcDistributionControlElement);
    DECL_CONV_STUB(IfcPort);
    DECL_CONV_STUB(IfcDistributionPort);
    DECL_CONV_STUB(IfcDoor);
    DECL_CONV_STUB(IfcPropertyDefinition);
    DECL_CONV_STUB(IfcPropertySetDefinition);
    DECL_CONV_STUB(IfcDoorStyle);
    DECL_CONV_STUB(IfcDuctFittingType);
    DECL_CONV_STUB(IfcDuctSegmentType);
    DECL_CONV_STUB(IfcFlowTreatmentDeviceType);
    DECL_CONV_STUB(IfcDuctSilencerType);
    DECL_CONV_STUB(IfcEdge);
    DECL_CONV_STUB(IfcEdgeCurve);
    DECL_CONV_STUB(IfcLoop);
    DECL_CONV_STUB(IfcEdgeLoop);
    DECL_CONV_STUB(IfcElectricApplianceType);
    DECL_CONV_STUB(IfcFlowController);
    DECL_CONV_STUB(IfcElectricDistributionPoint);
    DECL_CONV_STUB(IfcFlowStorageDeviceType);
    DECL_CONV_STUB(IfcElectricFlowStorageDeviceType);
    DECL_CONV_STUB(IfcElectricGeneratorType);
    DECL_CONV_STUB(IfcElectricHeaterType);
    DECL_CONV_STUB(IfcElectricMotorType);
    DECL_CONV_STUB(IfcElectricTimeControlType);
    DECL_CONV_STUB(IfcSystem);
    DECL_CONV_STUB(IfcElectricalCircuit);
    DECL_CONV_STUB(IfcElectricalElement);
    DECL_CONV_STUB(IfcElementAssembly);
    DECL_CONV_STUB(IfcElementQuantity);
    DECL_CONV_STUB(IfcElementarySurface);
    DECL_CONV_STUB(IfcEllipse);
    DECL_CONV_STUB(IfcEllipseProfileDef);
    DECL_CONV_STUB(IfcEnergyConversionDevice);
    DECL_CONV_STUB(IfcEquipmentElement);
    DECL_CONV_STUB(IfcEquipmentStandard);
    DECL_CONV_STUB(IfcEvaporativeCoolerType);
    DECL_CONV_STUB(IfcEvaporatorType);
    DECL_CONV_STUB(IfcSweptAreaSolid);
    DECL_CONV_STUB(IfcExtrudedAreaSolid);
    DECL_CONV_STUB(IfcFace);
    DECL_CONV_STUB(IfcFaceBasedSurfaceModel);
    DECL_CONV_STUB(IfcFaceBound);
    DECL_CONV_STUB(IfcFaceOuterBound);
    DECL_CONV_STUB(IfcFaceSurface);
    DECL_CONV_STUB(IfcManifoldSolidBrep);
    DECL_CONV_STUB(IfcFacetedBrep);
    DECL_CONV_STUB(IfcFacetedBrepWithVoids);
    DECL_CONV_STUB(IfcFanType);
    DECL_CONV_STUB(IfcFastener);
    DECL_CONV_STUB(IfcFastenerType);
    DECL_CONV_STUB(IfcFeatureElementAddition);
    DECL_CONV_STUB(IfcFillAreaStyleHatching);
    DECL_CONV_STUB(IfcFillAreaStyleTileSymbolWithStyle);
    DECL_CONV_STUB(IfcFillAreaStyleTiles);
    DECL_CONV_STUB(IfcFilterType);
    DECL_CONV_STUB(IfcFireSuppressionTerminalType);
    DECL_CONV_STUB(IfcFlowFitting);
    DECL_CONV_STUB(IfcFlowInstrumentType);
    DECL_CONV_STUB(IfcFlowMeterType);
    DECL_CONV_STUB(IfcFlowMovingDevice);
    DECL_CONV_STUB(IfcFlowSegment);
    DECL_CONV_STUB(IfcFlowStorageDevice);
    DECL_CONV_STUB(IfcFlowTerminal);
    DECL_CONV_STUB(IfcFlowTreatmentDevice);
    DECL_CONV_STUB(IfcFooting);
    DECL_CONV_STUB(IfcFurnishingElement);
    DECL_CONV_STUB(IfcFurnishingElementType);
    DECL_CONV_STUB(IfcFurnitureStandard);
    DECL_CONV_STUB(IfcFurnitureType);
    DECL_CONV_STUB(IfcGasTerminalType);
    DECL_CONV_STUB(IfcGeometricSet);
    DECL_CONV_STUB(IfcGeometricCurveSet);
    DECL_CONV_STUB(IfcRepresentationContext);
    DECL_CONV_STUB(IfcGeometricRepresentationContext);
    DECL_CONV_STUB(IfcGeometricRepresentationSubContext);
    DECL_CONV_STUB(IfcGrid);
    DECL_CONV_STUB(IfcObjectPlacement);
    DECL_CONV_STUB(IfcGridPlacement);
    DECL_CONV_STUB(IfcHeatExchangerType);
    DECL_CONV_STUB(IfcHumidifierType);
    DECL_CONV_STUB(IfcInventory);
    DECL_CONV_STUB(IfcJunctionBoxType);
    DECL_CONV_STUB(IfcLShapeProfileDef);
    DECL_CONV_STUB(IfcLaborResource);
    DECL_CONV_STUB(IfcLampType);
    DECL_CONV_STUB(IfcLightFixtureType);
    DECL_CONV_STUB(IfcLightSource);
    DECL_CONV_STUB(IfcLightSourceAmbient);
    DECL_CONV_STUB(IfcLightSourceDirectional);
    DECL_CONV_STUB(IfcLightSourceGoniometric);
    DECL_CONV_STUB(IfcLightSourcePositional);
    DECL_CONV_STUB(IfcLightSourceSpot);
    DECL_CONV_STUB(IfcLine);
    DECL_CONV_STUB(IfcLinearDimension);
    DECL_CONV_STUB(IfcLocalPlacement);
    DECL_CONV_STUB(IfcMappedItem);
    DECL_CONV_STUB(IfcProductRepresentation);
    DECL_CONV_STUB(IfcMaterialDefinitionRepresentation);
    DECL_CONV_STUB(IfcMeasureWithUnit);
    DECL_CONV_STUB(IfcMechanicalFastener);
    DECL_CONV_STUB(IfcMechanicalFastenerType);
    DECL_CONV_STUB(IfcMember);
    DECL_CONV_STUB(IfcMemberType);
    DECL_CONV_STUB(IfcMotorConnectionType);
    DECL_CONV_STUB(IfcProcess);
    DECL_CONV_STUB(IfcTask);
    DECL_CONV_STUB(IfcMove);
    DECL_CONV_STUB(IfcOccupant);
    DECL_CONV_STUB(IfcOffsetCurve2D);
    DECL_CONV_STUB(IfcOffsetCurve3D);
    DECL_CONV_STUB(IfcOneDirectionRepeatFactor);
    DECL_CONV_STUB(IfcOpenShell);
    DECL_CONV_STUB(IfcOpeningElement);
    DECL_CONV_STUB(IfcOrderAction);
    DECL_CONV_STUB(IfcOrientedEdge);
    DECL_CONV_STUB(IfcOutletType);
    DECL_CONV_STUB(IfcPath);
    DECL_CONV_STUB(IfcPerformanceHistory);
    DECL_CONV_STUB(IfcPermit);
    DECL_CONV_STUB(IfcPile);
    DECL_CONV_STUB(IfcPipeFittingType);
    DECL_CONV_STUB(IfcPipeSegmentType);
    DECL_CONV_STUB(IfcPlanarExtent);
    DECL_CONV_STUB(IfcPlanarBox);
    DECL_CONV_STUB(IfcPlane);
    DECL_CONV_STUB(IfcPlate);
    DECL_CONV_STUB(IfcPlateType);
    DECL_CONV_STUB(IfcPointOnCurve);
    DECL_CONV_STUB(IfcPointOnSurface);
    DECL_CONV_STUB(IfcPolyLoop);
    DECL_CONV_STUB(IfcPolygonalBoundedHalfSpace);
    DECL_CONV_STUB(IfcPolyline);
    DECL_CONV_STUB(IfcPresentationStyleAssignment);
    DECL_CONV_STUB(IfcProcedure);
    DECL_CONV_STUB(IfcProductDefinitionShape);
    DECL_CONV_STUB(IfcProject);
    DECL_CONV_STUB(IfcProjectOrder);
    DECL_CONV_STUB(IfcProjectOrderRecord);
    DECL_CONV_STUB(IfcProjectionCurve);
    DECL_CONV_STUB(IfcProjectionElement);
    DECL_CONV_STUB(IfcSimpleProperty);
    DECL_CONV_STUB(IfcPropertyBoundedValue);
    DECL_CONV_STUB(IfcPropertyEnumeratedValue);
    DECL_CONV_STUB(IfcPropertyListValue);
    DECL_CONV_STUB(IfcPropertyReferenceValue);
    DECL_CONV_STUB(IfcPropertySet);
    DECL_CONV_STUB(IfcPropertySingleValue);
    DECL_CONV_STUB(IfcPropertyTableValue);
    DECL_CONV_STUB(IfcProtectiveDeviceType);
    DECL_CONV_STUB(IfcProxy);
    DECL_CONV_STUB(IfcPumpType);
    DECL_CONV_STUB(IfcRadiusDimension);
    DECL_CONV_STUB(IfcRailing);
    DECL_CONV_STUB(IfcRailingType);
    DECL_CONV_STUB(IfcRamp);
    DECL_CONV_STUB(IfcRampFlight);
    DECL_CONV_STUB(IfcRampFlightType);
    DECL_CONV_STUB(IfcRationalBezierCurve);
    DECL_CONV_STUB(IfcRectangleProfileDef);
    DECL_CONV_STUB(IfcRectangleHollowProfileDef);
    DECL_CONV_STUB(IfcRectangularPyramid);
    DECL_CONV_STUB(IfcRectangularTrimmedSurface);
    DECL_CONV_STUB(IfcReinforcingElement);
    DECL_CONV_STUB(IfcReinforcingBar);
    DECL_CONV_STUB(IfcReinforcingMesh);
    DECL_CONV_STUB(IfcRelationship);
    DECL_CONV_STUB(IfcRelDecomposes);
    DECL_CONV_STUB(IfcRelAggregates);
    DECL_CONV_STUB(IfcRelConnects);
    DECL_CONV_STUB(IfcRelContainedInSpatialStructure);
    DECL_CONV_STUB(IfcRelDefines);
    DECL_CONV_STUB(IfcRelDefinesByProperties);
    DECL_CONV_STUB(IfcRelFillsElement);
    DECL_CONV_STUB(IfcRelOverridesProperties);
    DECL_CONV_STUB(IfcRelVoidsElement);
    DECL_CONV_STUB(IfcRepresentation);
    DECL_CONV_STUB(IfcRepresentationMap);
    DECL_CONV_STUB(IfcRevolvedAreaSolid);
    DECL_CONV_STUB(IfcRightCircularCone);
    DECL_CONV_STUB(IfcRightCircularCylinder);
    DECL_CONV_STUB(IfcRoof);
    DECL_CONV_STUB(IfcRoundedEdgeFeature);
    DECL_CONV_STUB(IfcRoundedRectangleProfileDef);
    DECL_CONV_STUB(IfcSIUnit);
    DECL_CONV_STUB(IfcSanitaryTerminalType);
    DECL_CONV_STUB(IfcScheduleTimeControl);
    DECL_CONV_STUB(IfcSectionedSpine);
    DECL_CONV_STUB(IfcSensorType);
    DECL_CONV_STUB(IfcServiceLife);
    DECL_CONV_STUB(IfcShapeModel);
    DECL_CONV_STUB(IfcShapeRepresentation);
    DECL_CONV_STUB(IfcShellBasedSurfaceModel);
    DECL_CONV_STUB(IfcSite);
    DECL_CONV_STUB(IfcSlab);
    DECL_CONV_STUB(IfcSlabType);
    DECL_CONV_STUB(IfcSpace);
    DECL_CONV_STUB(IfcSpaceHeaterType);
    DECL_CONV_STUB(IfcSpaceProgram);
    DECL_CONV_STUB(IfcSpatialStructureElementType);
    DECL_CONV_STUB(IfcSpaceType);
    DECL_CONV_STUB(IfcSphere);
    DECL_CONV_STUB(IfcStackTerminalType);
    DECL_CONV_STUB(IfcStair);
    DECL_CONV_STUB(IfcStairFlight);
    DECL_CONV_STUB(IfcStairFlightType);
    DECL_CONV_STUB(IfcStructuralActivity);
    DECL_CONV_STUB(IfcStructuralAction);
    DECL_CONV_STUB(IfcStructuralAnalysisModel);
    DECL_CONV_STUB(IfcStructuralItem);
    DECL_CONV_STUB(IfcStructuralConnection);
    DECL_CONV_STUB(IfcStructuralCurveConnection);
    DECL_CONV_STUB(IfcStructuralMember);
    DECL_CONV_STUB(IfcStructuralCurveMember);
    DECL_CONV_STUB(IfcStructuralCurveMemberVarying);
    DECL_CONV_STUB(IfcStructuralLinearAction);
    DECL_CONV_STUB(IfcStructuralLinearActionVarying);
    DECL_CONV_STUB(IfcStructuralLoadGroup);
    DECL_CONV_STUB(IfcStructuralPlanarAction);
    DECL_CONV_STUB(IfcStructuralPlanarActionVarying);
    DECL_CONV_STUB(IfcStructuralPointAction);
    DECL_CONV_STUB(IfcStructuralPointConnection);
    DECL_CONV_STUB(IfcStructuralReaction);
    DECL_CONV_STUB(IfcStructuralPointReaction);
    DECL_CONV_STUB(IfcStructuralResultGroup);
    DECL_CONV_STUB(IfcStructuralSurfaceConnection);
    DECL_CONV_STUB(IfcStructuralSurfaceMember);
    DECL_CONV_STUB(IfcStructuralSurfaceMemberVarying);
    DECL_CONV_STUB(IfcStructuredDimensionCallout);
    DECL_CONV_STUB(IfcStyleModel);
    DECL_CONV_STUB(IfcStyledRepresentation);
    DECL_CONV_STUB(IfcSubContractResource);
    DECL_CONV_STUB(IfcSubedge);
    DECL_CONV_STUB(IfcSurfaceCurveSweptAreaSolid);
    DECL_CONV_STUB(IfcSweptSurface);
    DECL_CONV_STUB(IfcSurfaceOfLinearExtrusion);
    DECL_CONV_STUB(IfcSurfaceOfRevolution);
    DECL_CONV_STUB(IfcSurfaceStyle);
    DECL_CONV_STUB(IfcSurfaceStyleShading);
    DECL_CONV_STUB(IfcSurfaceStyleRendering);
    DECL_CONV_STUB(IfcSurfaceStyleWithTextures);
    DECL_CONV_STUB(IfcSweptDiskSolid);
    DECL_CONV_STUB(IfcSwitchingDeviceType);
    DECL_CONV_STUB(IfcSystemFurnitureElementType);
    DECL_CONV_STUB(IfcTShapeProfileDef);
    DECL_CONV_STUB(IfcTankType);
    DECL_CONV_STUB(IfcTendon);
    DECL_CONV_STUB(IfcTendonAnchor);
    DECL_CONV_STUB(IfcTextLiteral);
    DECL_CONV_STUB(IfcTextLiteralWithExtent);
    DECL_CONV_STUB(IfcTimeSeriesSchedule);
    DECL_CONV_STUB(IfcTopologyRepresentation);
    DECL_CONV_STUB(IfcTransformerType);
    DECL_CONV_STUB(IfcTransportElement);
    DECL_CONV_STUB(IfcTransportElementType);
    DECL_CONV_STUB(IfcTrapeziumProfileDef);
    DECL_CONV_STUB(IfcTrimmedCurve);
    DECL_CONV_STUB(IfcTubeBundleType);
    DECL_CONV_STUB(IfcTwoDirectionRepeatFactor);
    DECL_CONV_STUB(IfcUShapeProfileDef);
    DECL_CONV_STUB(IfcUnitAssignment);
    DECL_CONV_STUB(IfcUnitaryEquipmentType);
    DECL_CONV_STUB(IfcValveType);
    DECL_CONV_STUB(IfcVector);
    DECL_CONV_STUB(IfcVertex);
    DECL_CONV_STUB(IfcVertexLoop);
    DECL_CONV_STUB(IfcVertexPoint);
    DECL_CONV_STUB(IfcVibrationIsolatorType);
    DECL_CONV_STUB(IfcVirtualElement);
    DECL_CONV_STUB(IfcWall);
    DECL_CONV_STUB(IfcWallStandardCase);
    DECL_CONV_STUB(IfcWallType);
    DECL_CONV_STUB(IfcWasteTerminalType);
    DECL_CONV_STUB(IfcWindow);
    DECL_CONV_STUB(IfcWindowStyle);
    DECL_CONV_STUB(IfcWorkControl);
    DECL_CONV_STUB(IfcWorkPlan);
    DECL_CONV_STUB(IfcWorkSchedule);
    DECL_CONV_STUB(IfcZShapeProfileDef);
    DECL_CONV_STUB(IfcZone);


#undef DECL_CONV_STUB

} //! STEP
} //! Assimp

#endif // INCLUDED_IFC_READER_GEN_H