class_docstr: A class to dump stack traces if no activity happens in ClusterCoordinator.
code: def report_closure_done(self):
      if self._timeout > 0:
          self._last_activity_time = time.time()
  
file_path: tensorflow-upstream/tensorflow/python/distribute/coordinator/watchdog.py
imports: import faulthandler
  import os
  import sys
  import threading
  import time
  from absl import logging
label_desc: Use image node_id 4 for calling the WatchDog obj's underlying member method code with example usage: obj.report_closure_done() without return types