code: def test_get_next_unordered_timeout(init):
      @ray.remote
      class MyActor:
          def __init__(self):
              pass
  
          def f(self, x):
              while True:
                  x + 1
                  time.sleep(1)
              return
  
          def double(self, x):
              return 2 * x
  
      actors = [MyActor.remote() for _ in range(4)]
      pool = ActorPool(actors)
  
      pool.submit(lambda a, v: a.f.remote(v), 0)
      with pytest.raises(TimeoutError):
          pool.get_next_unordered(timeout=0.1)
  
file_path: ray/python/ray/tests/test_actor_pool.py
imports: import asyncio
  import sys
  import time
  from unittest.mock import MagicMock
  import pytest
  import ray
  from ray.util import ActorPool
label_desc: Use image node_id 9 for calling a global function with example usage: test_get_next_unordered_timeout(init) and returns: unknown