code: def export_cached(self):
          
          for remote_function in self._functions_to_export:
              self._do_export(remote_function)
          self._functions_to_export = None
          for info in self._actors_to_export:
              (key, actor_class_info) = info
              self._publish_actor_class_to_key(key, actor_class_info)
docs: Export cached remote functions
  
          Note: this should be called only once when worker is connected.