code: def repo_url(self) -> str:
      return f"https://github.com/{self._owner}/{self._repo}"
  
imports: import argparse
  import asyncio
  import base64
  import json
  import os
  from shlex import quote
  from typing import Dict, List, Optional, Tuple
  import kubernetes_asyncio.client
  import kubernetes_asyncio.config
  from ci.build import BuildConfiguration, Code
  from ci.environment import KUBERNETES_SERVER_URL, STORAGE_URI
  from ci.github import clone_or_fetch_script
  from ci.utils import generate_token
  from gear import K8sCache
  from hailtop.utils import check_shell_output
label_desc: Use image node_id 3 for calling the Branch obj's underlying member method code with example usage: obj.repo_url() and returns: str, self, str, self