code: public EClass getIfcDocumentInformation() {
  		if (ifcDocumentInformationEClass == null) {
  			ifcDocumentInformationEClass = (EClass) EPackage.Registry.INSTANCE.getEPackage(Ifc2x3tc1Package.eNS_URI)
  					.getEClassifiers().get(167);
  		}
  		return ifcDocumentInformationEClass;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated