code: def shutdown(self):
          
  
          if not self._exited:
              self._exited = True
  
              # signal task runner to terminate via SIGTERM
              if self._task_runner.is_alive():
                  self._task_runner.terminate()
  
                  # if command server is running, then block until
                  # task runner completes so it has time to use
                  # the command server to clean up root plugins
                  if self._command_server.is_alive():
                      if self._task_runner.is_alive():
                          self._task_runner.join()
  
              _shutdown_pipe(self._pipe)
              self._task.stop()
docs: Shuts down the daemon process.