code: def attach(self, filt, view=None):
          
          for v in self._subvisuals:
              v.attach(filt, v)
docs: Attach a Filter to this visual
  
          Each filter modifies the appearance or behavior of the visual.
  
          Parameters
          ----------
          filt : object
              The filter to attach.
          view : instance of VisualView | None
              The view to use.