code: def _update_video_volume_cell_attributes(self, key):
          
  
          try:
              video_cell_panel = self.grid_renderer.video_cells[key]
          except KeyError:
              return
  
          old_video_volume = self.code_array.cell_attributes[key]["video_volume"]
          new_video_volume = video_cell_panel.volume
  
          if old_video_volume == new_video_volume:
              return
  
          selection = Selection([], [], [], [], [key])
  
          self.actions.set_attr("video_volume", new_video_volume, selection)
docs: Updates the panel cell attrutes of a panel cell