code: def manual_dir(self):
      # return full path if its a dir
      if os.path.isdir(self.dummy_file):
          return self.dummy_file
      # else cut off path to file -> example `xsum`.
      return "/".join(
          self.dummy_file.replace(os.sep, "/").split("/")[:-1]
      )
  
imports: import os
  import re
  import urllib.parse
  from pathlib import Path
  from typing import Callable, List, Optional, Union
  from zipfile import ZipFile
  from ..utils.file_utils import cached_path, hf_github_url
  from ..utils.logging import get_logger
  from ..utils.version import Version
label_desc: Use image node_id 8 for calling the MockDownloadManager obj's underlying member method code with example usage: obj.manual_dir() and returns: str, self