code: def test_updater(tmp_dir, dvc, server):
      addr = server.server_address
      logfile = tmp_dir / "logfile"
  
      env = {
          **os.environ,
          DVC_DAEMON_LOGFILE: str(logfile),
          DVC_UPDATER_ENDPOINT: "http://{}:{}".format(*addr),
          # prevent running analytics daemon
          DVC_NO_ANALYTICS: "true",
      }
      env.pop("DVC_TEST", None)
      env.pop("CI", None)
  
      output = subprocess.check_output(
          [*_get_dvc_args(), "version", "-vv"],
          env=env,
          text=True,
      )
  
      match = re.search(
          r".*Spawned .*updater.* with pid (.*)", output, flags=re.M
      )
      assert match, "no match for the pid"
      pid = int(match.group(1).strip())
  
      with suppress(psutil.NoSuchProcess):
          psutil.Process(pid).wait(timeout=10)
      assert f"Process {pid} exiting with 0" in logfile.read_text(
          encoding="utf8"
      )
      assert server.RequestHandlerClass.hits == {"GET": 1}
      # check that the file is saved correctly
      updater_file = Path(dvc.tmp_dir) / Updater.UPDATER_FILE
      assert (
          json.loads(updater_file.read_text(encoding="utf8"))
          == UPDATER_INFO
      )
  
imports: import json
  import os
  import re
  import subprocess
  import sys
  from collections import defaultdict
  from contextlib import contextmanager, suppress
  from http.server import HTTPServer, SimpleHTTPRequestHandler
  from pathlib import Path
  from threading import Thread
  from typing import Dict, Iterator
  import psutil
  import pytest
  from dvc import version_tuple
  from dvc.daemon import _get_dvc_args
  from dvc.env import DVC_ANALYTICS_ENDPOINT, DVC_DAEMON_LOGFILE, DVC_NO_ANALYTICS, DVC_UPDATER_ENDPOINT
  from dvc.updater import Updater
label_desc: Use image node_id 5 for calling a global function with example usage: test_updater(tmp_dir, dvc, server) without return types