docs: def stop(self, message: str = None, silent: bool = False):
          """
          Stops the execution of the project at the current step immediately
          without raising an error. Use this to abort running the project in
          situations where some critical branching action should prevent the
          project from continuing to run.
  
          :param message:
              A custom display message to include in the display for the stop
              action. This message is ignored if silent is set to True.
          :param silent:
              When True nothing will be shown in the notebook display when the
              step is stopped. When False, the notebook display will include
              information relating to the stopped action.
          """
          me = self.get_internal_project()
          if not me or not me.current_step:
              return
  
          if not silent:
              render_stop_display(me.current_step, message)
          raise UserAbortError(halt=True)