code: def _get_toplevel(path, user=None, password=None, output_encoding=None):
      '''
      Use git rev-parse to return the top level of a repo
      '''
      return _git_run(
          ['git', 'rev-parse', '--show-toplevel'],
          cwd=path,
          user=user,
          password=password,
          output_encoding=output_encoding)['stdout'f _get_toplevel(path, user=None, password=None, output_encoding=None):
      '''
      Use git rev-parse to return the top level of a repo
      '''
      return _git_run(
          ['git', 'rev-parse', '--show-toplevel'],
          cwd=path,
          user=user,
          password=password,
          output_encoding=output_encoding)['stdout']
docs: Use git rev-parse to return the top level of a repo