code: def test_init_two_actors(
      ray_start_distributed_multigpu_2_nodes_4_gpus, group_name
  ):
      world_size = 2
      actors, results = create_collective_multigpu_workers(
          world_size, group_name
      )
      for i in range(world_size):
          assert results[i]
  
file_path: ray/python/ray/util/collective/tests/distributed_multigpu_tests/test_distributed_multigpu_basic_apis.py
imports: import pytest
  import ray
  from random import shuffle
  from ray.util.collective.tests.util import create_collective_multigpu_workers
label_desc: Use image node_id 1 for calling a global function with example usage: test_init_two_actors(ray_start_distributed_multigpu_2_nodes_4_gpus, group_name) without return types