code: @Override
  	public EEnum getIfcMechanicalFastenerTypeEnum() {
  		if (ifcMechanicalFastenerTypeEnumEEnum == null) {
  			ifcMechanicalFastenerTypeEnumEEnum = (EEnum) EPackage.Registry.INSTANCE.getEPackage(Ifc4Package.eNS_URI)
  					.getEClassifiers().get(1016);
  		}
  		return ifcMechanicalFastenerTypeEnumEEnum;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated