code: def _lock_file_contents(task_uid):
      """Returns the content of the lock file."""
      return "%s.%d.%s" % (socket.gethostname(), os.getpid(), task_uid)
  
imports: import abc
  import datetime
  import enum
  import os
  import socket
  import ssl
  import sys
  import tarfile
  import tempfile
  import time
  import urllib
  import uuid
  from absl import flags
  from absl import logging
  import tensorflow
  from tensorflow_hub import file_utils
  from tensorflow_hub import tf_utils
label_desc: Use image node_id 8 for calling a global function with example usage: _lock_file_contents(task_uid) and returns: unknown