code: def download_files_maybe_extract(urls, directory, check_files=[]):
      
      check_files = [os.path.join(directory, f) for f in check_files]
      if _check_download(*check_files):
          return
  
      for url in urls:
          download_file_maybe_extract(url=url, directory=directory)
  
      if not _check_download(*check_files):
          raise ValueError('[DOWNLOAD FAILED] `*check_files` not found')
docs: Download the files at ``urls`` to ``directory``. Extract to ``directory`` if tar or zip.
  
      Args:
          urls (str): Url of files.
          directory (str): Directory to download to.
          check_files (list of str): Check if these files exist, ensuring the download succeeded.
              If these files exist before the download, the download is skipped.
  
      Raises:
          ValueError: Error if one of the ``check_files`` are not found following the download.