code: def set_env_vars():
      with mock.patch.dict(
          os.environ,
          {
              "GITHUB_SERVER_URL": "https://github.com",
              "GITHUB_REPOSITORY": "apache/arrow",
              "GITHUB_RUN_ID": "1463784188",
          },
      ):
          yield
  
imports: import json
  import os
  from unittest import mock
  from unittest.mock import Mock
  import click
  import pytest
  import responses
  from archery.bot import CommentBot, CommandError, PullRequestState, PullRequestWorkflowBot, group
label_desc: Use image node_id 2 for calling a global function with example usage: set_env_vars() without return types