code: def silent_exec_method(self, code):
          
          # Generate uuid, which would be used as an indication of whether or
          # not the unique request originated from here
          local_uuid = to_text_string(uuid.uuid1())
          code = to_text_string(code)
          if self.kernel_client is None:
              return
  
          msg_id = self.kernel_client.execute('', silent=True,
                                              user_expressions={ local_uuid:code })
          self._kernel_methods[local_uuid] = code
          self._request_info['execute'][msg_id] = self._ExecutionRequest(msg_id,
                                                            'silent_exec_method')
docs: Silently execute a kernel method and save its reply
  
          The methods passed here **don't** involve getting the value
          of a variable but instead replies that can be handled by
          ast.literal_eval.
  
          To get a value see `get_value`
  
          Parameters
          ----------
          code : string
              Code that contains the kernel method as part of its
              string
  
          See Also
          --------
          handle_exec_method : Method that deals with the reply
  
          Note
          ----
          This is based on the _silent_exec_callback method of
          RichJupyterWidget. Therefore this is licensed BSD