code: def clear(self):
          
          for renderer in self.renderers:
              renderer.RemoveAllViewProps()
          self._scalar_bar_slots = set(range(MAX_N_COLOR_BARS))
          self._scalar_bar_slot_lookup = {}
          self._scalar_bar_ranges = {}
          self._scalar_bar_mappers = {}
          self._scalar_bar_actors = {}
          self._scalar_bar_widgets = {}
docs: Clears plot by removing all actors and properties