code: def send_env_text(self, text, episode_id):
          ''' text channel to communicate with the agent '''
          reactor.callFromThread(self._send_env_text, text, episode_idf send_env_text(self, text, episode_id):
          ''' text channel to communicate with the agent '''
          reactor.callFromThread(self._send_env_text, text, episode_id)
docs: text channel to communicate with the agent