code: def status(directory: str) -> Tuple[RepositoryLocation, Branch, Commit]:
      
      if not os.path.exists(directory):
          raise ValueError(f"No subrepo found in \"{directory}\"")
  
      try:
          result = run([GIT_COMMAND, _GIT_SUBREPO_COMMAND, _GIT_SUBREPO_STATUS_COMMAND, _GIT_SUBREPO_VERBOSE_FLAG,
                        get_directory_relative_to_git_root(directory)],
                       execution_directory=get_git_root_directory(directory))
      except RunException as e:
          if "Command failed: 'git rev-parse --verify HEAD'" in e.stderr:
              raise NotAGitSubrepoException(directory) from e
          raise e
  
      if re.search("is not a subrepo$", result):
          raise NotAGitSubrepoException(directory)
  
      url = re.search("Remote URL:\s*(.*)", result).group(1)
      branch = re.search("Tracking Branch:\s*(.*)", result).group(1)
      commit = re.search("Pulled Commit:\s*(.*)", result).group(1)
      return url, branch, commit
docs: Gets the status of the subrepo that has been cloned into the given directory.
      :param directory: the directory containing the subrepo
      :return: a tuple consisting of the URL the subrepo is tracking, the branch that has been checked out and the commit
      reference