code: def test_health(client_no_auth):
      global headers
      import time
  
      try:
          response = client_no_auth.get("/health")
          assert response.status_code == 200
          result = response.json()
          print("\n response from health:", result)
          assert result["unhealthy_count"] == 0
      except Exception as e:
          pytest.fail(
              f"LiteLLM Proxy test failed. Exception - {str(e)}"
          )
  
imports: import sys, os
  import traceback
  from dotenv import load_dotenv
  import os, io
  import pytest, logging, asyncio
  import litellm
  from litellm import embedding, completion, completion_cost, Timeout
  from litellm import RateLimitError
  from fastapi.testclient import TestClient
  from fastapi import FastAPI
  from litellm.proxy.proxy_server import router, save_worker_config, initialize
  from litellm.integrations.custom_logger import CustomLogger
  from litellm.proxy.proxy_server import ProxyConfig
label_desc: Use image node_id 9 for calling a global function with example usage: test_health(client_no_auth) without return types