code: def test_placement_group_remove_stress(
      ray_start_cluster, execution_number
  ):
      """Full PG mini integration test that runs many
      concurrent remove_placement_group
      """
      run_mini_integration_test(
          ray_start_cluster, pg_removal=True, num_pgs=999
      )
  
file_path: ray/python/ray/tests/test_placement_group_mini_integration.py
imports: import pytest
  import sys
  import time
  from random import random
  import ray
  import ray.cluster_utils
  from ray._private.test_utils import wait_for_condition
  from ray.util.placement_group import placement_group, remove_placement_group
  from ray.util.scheduling_strategies import PlacementGroupSchedulingStrategy
label_desc: Use image node_id 3 for calling a global function with example usage: test_placement_group_remove_stress(ray_start_cluster, execution_number) without return types