code: def push(self):
          
          if self.renderer.mode == 'server':
              return
          if self.comm is None:
              raise Exception('Renderer does not have a comm.')
  
          if self._root and 'embedded' in self._root.tags:
              # Allows external libraries to prevent comm updates
              return
  
          msg = self.renderer.diff(self, binary=True)
          if msg is None:
              return
          self.comm.send(msg.header_json)
          self.comm.send(msg.metadata_json)
          self.comm.send(msg.content_json)
          for header, payload in msg.buffers:
              self.comm.send(json.dumps(header))
              self.comm.send(buffers=[payload])
docs: Pushes updated plot data via the Comm.