code: def get_current_worker_context():
      """Returns the current task context."""
      try:
          return _worker_context.current
      except AttributeError:
          return None
  
imports: import copy
  import json
  import os
  import threading
  import time
  from tensorflow.core.protobuf import cluster_pb2
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.python.client import session
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.training import monitored_session
  from tensorflow.python.training import server_lib
label_desc: Use image node_id 1 for calling a global function with example usage: get_current_worker_context() and returns: _worker_context, None