code: def _non_chief_checkpoint_dir(checkpoint_dir, task_id):
      """Returns a directory for non-chief worker to save checkpoint."""
      dirpath = os.path.dirname(checkpoint_dir)
      base = os.path.basename(checkpoint_dir)
      base_dirpath = "workertemp_" + str(task_id)
      dirpath = os.path.join(dirpath, base_dirpath)
      file_io.recursive_create_dir_v2(dirpath)
      return os.path.join(dirpath, base)
  
imports: import os
  import signal
  import sys
  import threading
  import time
  from tensorflow.core.distributed_runtime.preemption import gen_check_preemption_op
  from tensorflow.python.checkpoint import checkpoint
  from tensorflow.python.checkpoint import checkpoint_context
  from tensorflow.python.checkpoint import checkpoint_management
  from tensorflow.python.distribute import distribute_lib
  from tensorflow.python.distribute import multi_worker_util
  from tensorflow.python.distribute.failure_handling import failure_handling_util
  from tensorflow.python.eager import context
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.lib.io import file_io
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import gfile
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util import tf_contextlib
  from tensorflow.python.util.deprecation import deprecated
  from tensorflow.python.util.tf_export import tf_export
  from tensorflow.tools.docs import doc_controls
label_desc: Use image node_id 1 for calling a global function with example usage: _non_chief_checkpoint_dir(checkpoint_dir, task_id) and returns: os