code: def push_error_to_driver_through_redis(redis_client,
                                         error_type,
                                         message,
                                         driver_id=None):
      
      if driver_id is None:
          driver_id = ray.DriverID.nil()
      # Do everything in Python and through the Python Redis client instead
      # of through the raylet.
      error_data = ray.gcs_utils.construct_error_message(driver_id, error_type,
                                                         message, time.time())
      redis_client.execute_command("RAY.TABLE_APPEND",
                                   ray.gcs_utils.TablePrefix.ERROR_INFO,
                                   ray.gcs_utils.TablePubsub.ERROR_INFO,
                                   driver_id.binary(), error_data)
docs: Push an error message to the driver to be printed in the background.
  
      Normally the push_error_to_driver function should be used. However, in some
      instances, the raylet client is not available, e.g., because the
      error happens in Python before the driver or worker has connected to the
      backend processes.
  
      Args:
          redis_client: The redis client to use.
          error_type (str): The type of the error.
          message (str): The message that will be printed in the background
              on the driver.
          driver_id: The ID of the driver to push the error message to. If this
              is None, then the message will be pushed to all drivers.