code: @Override
  	public EClass getIfcProjectLibrary() {
  		if (ifcProjectLibraryEClass == null) {
  			ifcProjectLibraryEClass = (EClass) EPackage.Registry.INSTANCE.getEPackage(Ifc4Package.eNS_URI)
  					.getEClassifiers().get(460);
  		}
  		return ifcProjectLibraryEClass;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated