code: def wait_for_stop(timeout_secs: Optional[float] = None):
      """Blocks until termination of the node's program starts or timeout passes.
  
      Args:
        timeout_secs: Floating point number specifying a timeout for the operation,
          in seconds. If not provided, timeout is infinite.
  
      Returns:
        True if program is being terminated, False if timeout was reached.
  
      Usage examples:
      - Perform cleanup at the end of the run:
        start_server()
        lp.wait_for_stop()
        stop_server()
        checkpoint()
  
      - Perform some work until program is terminated:
        while not lp.wait_for_stop(0): # Return immediately.
          ... do some work ...
  
      - Perform some task every 5 seconds:
        while not lp.wait_for_stop(5.0):
          ... perform periodic task ...
      """
      return get_worker_manager().wait_for_stop(timeout_secs)
  
imports: import collections
  from concurrent import futures
  import dataclasses
  import functools
  import signal
  import subprocess
  import threading
  import time
  from typing import Any, Callable, Iterable, List, Mapping, MutableMapping, Optional, Sequence, Tuple
  from absl import logging
  from launchpad import flags
  import psutil
  import termcolor
label_desc: Use image node_id 3 for calling a global function with example usage: wait_for_stop(timeout_secs) and returns: get_worker_manager