code: def updateSignal(self, *args, **kwargs):
          
          p = kwargs.pop('plot')
          if p == 'response':
              self.responseSignalPlot.updateData(*args, **kwargs)
          else:
              self.stimSignalPlot.updateData(*args, **kwargs)
docs: Updates the signal plots kwarg *'plot'*, which is
          either 'response' or (well actually anything).
  
          For other arguments, see: :meth:`FFTWidget.updateData<sparkle.gui.plotting.pyqtgraph_widgets.FFTWidget.updateData>`