code: def set_test_pip_version() -> None:
      os.environ["JINA_GATEWAY_IMAGE"] = "jinaai/jina:test-pip"
      yield
      if (
          "JINA_GATEWAY_IMAGE" in os.environ
      ):  # maybe another fixture has already removed
          del os.environ["JINA_GATEWAY_IMAGE"]
  
imports: import contextlib
  import os
  import subprocess
  import tempfile
  import time
  from pathlib import Path
  from typing import Dict, List
  import docker
  import pytest
  from pytest import FixtureRequest
  from pytest_kind import KindCluster
  from jina.logging.logger import JinaLogger
label_desc: Use image node_id 6 for calling a global function with example usage: set_test_pip_version() without return types