code: def test_wait(init):
      loop = get_or_create_event_loop()
      tasks = gen_tasks()
      futures = [obj_ref.as_future() for obj_ref in tasks]
      results, _ = loop.run_until_complete(asyncio.wait(futures))
      assert set(results) == set(futures)
  
imports: import asyncio
  import concurrent.futures
  import sys
  import time
  import numpy
  import pytest
  import ray
  from ray._private.async_compat import is_async_func
  from ray._private.test_utils import wait_for_condition
  from ray._private.utils import get_or_create_event_loop, run_background_task, background_tasks
label_desc: Use image node_id 6 for calling a global function with example usage: test_wait(init) without return types