code: def _handle_batch_size(self, config):
      assert "batch_size" in config, "batch_size must be set in config"
      config["batch_size"] = config["batch_size"] // self.size
      return config, config["batch_size"]
  
imports: import logging
  import json
  import os
  import numpy
  import ray
  from contextlib import closing
  import logging
  import socket
  from zoo.orca.data.utils import ray_partitions_get_data_label
label_desc: Use image node_id 3 for calling the HorovodDatasetHanlder obj's underlying member method code with example usage: obj._handle_batch_size(config) and returns: config,  config