code: def test_submitting_many_actors_to_one(ray_start_sharded):
      @ray.remote
      class Actor:
          def __init__(self):
              pass
  
          def ping(self):
              return
  
      @ray.remote
      class Worker:
          def __init__(self, actor):
              self.actor = actor
  
          def ping(self):
              return ray.get(self.actor.ping.remote())
  
      a = Actor.remote()
      workers = [Worker.remote(a) for _ in range(10)]
      for _ in range(10):
          out = ray.get([w.ping.remote() for w in workers])
          assert out == [None for _ in workers]
  
file_path: ray/python/ray/tests/test_stress_sharded.py
imports: import numpy
  import pytest
  import ray
label_desc: Use image node_id 3 for calling a global function with example usage: test_submitting_many_actors_to_one(ray_start_sharded) and returns: ray