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