code: def test_start_services():
      with tempfile.TemporaryDirectory() as tmpdir:
          outfile = os.path.join(tmpdir, "bar")
          svc = [["bash", "-c", "touch $FOO"]]
          env = {"FOO": outfile}
          caliban_launcher._start_services(svc, env, delay=1)
  
          assert os.path.exists(outfile)
  
file_path: caliban/tests/caliban/resources/test_caliban_launcher.py
imports: import argparse
  import builtins
  from google.auth import credentials
  import json
  import os
  import pytest
  import tempfile
  from typing import Any
  from caliban.resources import caliban_launcher
label_desc: Use image node_id 2 for calling a global function with example usage: test_start_services() without return types