code: def download(self) -> None:
      if self._check_integrity():
          print("Files already downloaded and verified")
          return
      url = f"{self.download_url_prefix}{self.filename}"
      download_and_extract_archive(
          url, self.root, filename=self.filename, md5=self.md5
      )
      download_url(
          f"{self.download_url_prefix}{self.labels_file}", self.root
      )
      if self.view == "people":
          download_url(
              f"{self.download_url_prefix}{self.names}", self.root
          )
  
imports: import os
  from typing import Any, Callable, Dict, List, Optional, Tuple, Union
  from PIL import Image
  from .utils import check_integrity, download_and_extract_archive, download_url, verify_str_arg
  from .vision import VisionDataset
label_desc: Use image node_id 4 for calling the _LFW obj's underlying member method code with example usage: obj.download() without return types