if ( obj instanceof ReportElementModel ) { return ( (ReportElementModel) obj ).getSlotHandle( ); }
	public static Object unwrapToModel( Object obj )	{		if ( obj instanceof ReportElementModel )		{			return ( (ReportElementModel) obj ).getSlotHandle( );		}		if ( obj instanceof ListBandProxy )		{			return ( (ListBandProxy) obj ).getSlotHandle( );		}		return obj;	}