code: def _reset_os_environ(monkeypatch, _standard_os_environ):
      """Reset ``os.environ`` to the standard environ after each test,
      in case a test changed something without cleaning up.
      """
      monkeypatch._setitem.extend(_standard_os_environ)
  
file_path: flask/tests/conftest.py
imports: import os
  import pkgutil
  import sys
  import pytest
  from _pytest import monkeypatch
  from flask import Flask
  from flask.globals import request_ctx
label_desc: Use image node_id 2 for calling a global function with example usage: _reset_os_environ(monkeypatch, _standard_os_environ) without return types