code: def __init__(self):
      self._coordinators = []
      self._fetcher_id_seq = 0
      self._worker_ids = []
      self.register_shutdown_handler()
  
imports: import logging
  import threading
  import atexit
  import time
  import collections
  import traceback
  from abc import ABCMeta, abstractmethod
label_desc: Use image node_id 1 to create a new GlobalWorkerCoordinator object  with example: obj = GlobalWorkerCoordinator()