docstr: Test multiple asynchronous remote calls to the same actor.
docstr_tok: ["Test","multiple","asynchronous","remote","calls","to","the","same","actor","."]
code: def test_async_call_same_actor_multiple_times(self):
      """Test multiple asynchronous remote calls to the same actor."""
      actors = [Actor.remote(i, maybe_crash=False) for i in range(4)]
      manager = FaultTolerantActorManager(actors=actors)
  
      # 2 asynchronous call to actor 0.
      num_of_calls = manager.foreach_actor_async(
          lambda w: w.call(),
          remote_actor_ids=[0, 0],
      )
      self.assertEqual(num_of_calls, 2)
  
      # Now, let's actually fetch the results.
      results = manager.fetch_ready_async_reqs(timeout_seconds=None)
      # Returns 1 and 2, representing the first and second calls to actor 0.
      self.assertEqual(
          [r.get() for r in results.ignore_errors()], [1, 2]
      )
  
      manager.clear()
  
imports: import functools
  import os
  from pathlib import Path
  import pickle
  import sys
  import time
  import unittest
  import ray
  from ray.util.state import list_actors
  from ray.rllib.utils.actor_manager import FaultAwareApply, FaultTolerantActorManager
label_desc: Use image node_id 8 for calling the TestActorManager obj's underlying member method code with example usage: obj.test_async_call_same_actor_multiple_times() without return types