code: public EClass getIfcDefinedSymbol() {
  		if (ifcDefinedSymbolEClass == null) {
  			ifcDefinedSymbolEClass = (EClass) EPackage.Registry.INSTANCE.getEPackage(Ifc2x3tc1Package.eNS_URI)
  					.getEClassifiers().get(143);
  		}
  		return ifcDefinedSymbolEClass;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated