def getRenderersInCellList(self, sheet, cells):
        rens = []
        for (row, col) in cells:
            cell = sheet.getCell(row, col)
            if hasattr(cell, 'getRendererList'):
                rens += cell.getRendererList()
        return rens
isRendererIn(sheet: spreadsheet.StandardWidgetSheet,
dataset/ETHPy150Open VisTrails/VisTrails/contrib/titan/vtkviewcell.py/QVTKViewWidget.getRenderersInCellList