code: def start_and_shutdown_ray_cli():
      subprocess.check_output(
          ["ray", "start", "--head"],
      )
      yield
      subprocess.check_output(
          ["ray", "stop", "--force"],
      )
  
imports: import os
  import subprocess
  import sys
  from contextlib import contextmanager
  from tempfile import NamedTemporaryFile
  import pytest
  import requests
  import ray
  import ray._private.state
  import ray.actor
  from ray import serve
  from ray._private.test_utils import SignalActor, wait_for_condition
  from ray.cluster_utils import AutoscalingCluster, Cluster
  from ray.exceptions import RayActorError
  from ray.serve._private.common import ProxyStatus
  from ray.serve._private.constants import SERVE_DEFAULT_APP_NAME
  from ray.serve._private.logging_utils import get_serve_logs_dir
  from ray.serve._private.utils import get_head_node_id
  from ray.serve.context import _get_global_client
  from ray.serve.schema import ServeInstanceDetails
  from ray.tests.conftest import call_ray_stop_only
label_desc: Use image node_id 2 for calling a global function with example usage: start_and_shutdown_ray_cli() without return types