code: def _kill_http_proxies():
      http_proxies = ray.get(
          serve.context._global_client._controller.get_proxies.remote()
      )
      for http_proxy in http_proxies.values():
          ray.kill(http_proxy, no_restart=False)
  
file_path: ray/python/ray/serve/tests/test_failure.py
imports: import os
  import sys
  import time
  import pytest
  import requests
  import ray
  from ray import serve
  from ray._private.test_utils import SignalActor, wait_for_condition
  from ray.serve._private.common import DeploymentID
  from ray.serve._private.constants import SERVE_DEFAULT_APP_NAME
label_desc: Use image node_id 3 for calling a global function with example usage: _kill_http_proxies() without return types