code: def check_oversized_pickle(pickled, name, obj_type, worker):
      
      length = len(pickled)
      if length <= ray_constants.PICKLE_OBJECT_WARNING_SIZE:
          return
      warning_message = (
          "Warning: The {} {} has size {} when pickled. "
          "It will be stored in Redis, which could cause memory issues. "
          "This may mean that its definition uses a large array or other object."
      ).format(obj_type, name, length)
      push_error_to_driver(
          worker,
          ray_constants.PICKLING_LARGE_OBJECT_PUSH_ERROR,
          warning_message,
          driver_id=worker.task_driver_id)
docs: Send a warning message if the pickled object is too large.
  
      Args:
          pickled: the pickled object.
          name: name of the pickled object.
          obj_type: type of the pickled object, can be 'function',
              'remote function', 'actor', or 'object'.
          worker: the worker used to send warning message.