code: def wait_for_one(events):
      while True:
          for event in events:
              if event.is_set():
                  return
          time.sleep(0.01)
  
imports: import time
  import unittest
  import warnings
  import mock
  import pytest
  from horovod.runner.util import network
  from horovod.runner.elastic.discovery import FixedHosts, HostManager
  from horovod.runner.elastic.driver import ElasticDriver
  from horovod.runner.elastic.rendezvous import create_rendezvous_handler
  from horovod.runner.elastic.worker import HostUpdateResult, WorkerNotificationManager
  from horovod.runner.http.http_server import RendezvousServer
label_desc: Use image node_id 1 for calling a global function with example usage: wait_for_one(events) without return types