code: def test_schedule_placement_groups_at_the_same_time(
      connect_to_client,
  ):
      ray.init(num_cpus=4)
  
      with connect_to_client_or_not(connect_to_client):
          pgs = [placement_group([{"CPU": 2}]) for _ in range(6)]
  
          wait_pgs = {pg.ready(): pg for pg in pgs}
  
          def is_all_placement_group_removed():
              ready, _ = ray.wait(list(wait_pgs.keys()), timeout=0.5)
              if ready:
                  ready_pg = wait_pgs[ready[0]]
                  remove_placement_group(ready_pg)
                  del wait_pgs[ready[0]]
  
              if len(wait_pgs) == 0:
                  return True
              return False
  
          wait_for_condition(is_all_placement_group_removed)
  
      ray.shutdown()
  
imports: import sys
  import time
  import pytest
  import ray
  import ray._private.gcs_utils
  import ray.cluster_utils
  import ray.experimental.internal_kv
  from ray._private.ray_constants import DEBUG_AUTOSCALING_ERROR, DEBUG_AUTOSCALING_STATUS
  from ray.autoscaler._private.constants import AUTOSCALER_UPDATE_INTERVAL_S
  from ray._private.test_utils import convert_actor_state, generate_system_config_map, is_placement_group_removed, kill_actor_and_wait_for_failure, reset_autoscaler_v2_enabled_cache, run_string_as_driver, wait_for_condition
  from ray.autoscaler._private.commands import debug_status
  from ray.exceptions import RaySystemError
  from ray.util.client.ray_client_helpers import connect_to_client_or_not
  from ray.util.placement_group import placement_group, remove_placement_group
  from ray.util.scheduling_strategies import PlacementGroupSchedulingStrategy
label_desc: Use image node_id 5 for calling a global function with example usage: test_schedule_placement_groups_at_the_same_time(connect_to_client) and returns: False, True