code: public EEnum getIfcStairFlightTypeEnum() {
  		if (ifcStairFlightTypeEnumEEnum == null) {
  			ifcStairFlightTypeEnumEEnum = (EEnum) EPackage.Registry.INSTANCE.getEPackage(Ifc2x3tc1Package.eNS_URI)
  					.getEClassifiers().get(903);
  		}
  		return ifcStairFlightTypeEnumEEnum;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated