code: def test_pip_no_working_dir(ray_start):
      driver = """
  import ray
  from ray import serve
  import requests
  
  ray.init(address="auto")
  
  
  @serve.deployment
  def requests_version(request):
      return requests.__version__
  
  
  serve.run(requests_version.options(
      ray_actor_options={
          "runtime_env": {
              "pip": ["requests==2.25.1"]
          }
      }).bind())
  
  assert requests.get("http://127.0.0.1:8000/requests_version").text == "2.25.1"
  """
  
      output = run_string_as_driver(driver)
      print(output)
  
imports: import sys
  import pytest
  from ray._private.test_utils import run_string_as_driver
label_desc: Use image node_id 2 for calling a global function with example usage: test_pip_no_working_dir(ray_start) without return types