docs: def get_git_root_directory(directory: str):
      """
      Gets the path of the git project root directory from the given directory.
      :param directory: the directory within a git repository
      :return: the root directory of the git repository
      :exception NotAGitRepositoryException: raised if the given directory is not within a git repository
      """
      try:
          return run([GIT_COMMAND, "rev-parse", "--show-toplevel"], directory)
      except RunException as e:
          if " Not a git repository" in e.stderr:
              raise NotAGitRepositoryException(directory) from e