def changeInterpolator(self, action):
        widgetIdx = action.data()
        if widgetIdx < self.stackedEditors.count():
            self.stackedEditors.setCurrentIndex(widgetIdx)
changeInterpolator(action: QAction) -> None        
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/gui/modules/paramexplore.py/QParameterEditor.changeInterpolator