code: @SuppressWarnings("unchecked")
  	@Override
  	public EList<IfcRelAggregates> getIsDecomposedBy() {
  		return (EList<IfcRelAggregates>) eGet(Ifc4Package.Literals.IFC_OBJECT_DEFINITION__IS_DECOMPOSED_BY, true);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated