code: public EClass getIfcIrregularTimeSeries() {
  		if (ifcIrregularTimeSeriesEClass == null) {
  			ifcIrregularTimeSeriesEClass = (EClass) EPackage.Registry.INSTANCE.getEPackage(Ifc2x3tc1Package.eNS_URI)
  					.getEClassifiers().get(282);
  		}
  		return ifcIrregularTimeSeriesEClass;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated