code: @Override
  	public EEnum getIfcFlowDirectionEnum() {
  		if (ifcFlowDirectionEnumEEnum == null) {
  			ifcFlowDirectionEnumEEnum = (EEnum) EPackage.Registry.INSTANCE.getEPackage(Ifc4Package.eNS_URI)
  					.getEClassifiers().get(992);
  		}
  		return ifcFlowDirectionEnumEEnum;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated