docs: def comic_archive_uncompress(filename, image_format):
      """
      Uncompress comic archives.
  
      Return the name of the working directory we uncompressed into.
      """
      if not Settings.comics:
          report = ['Skipping archive file: {}'.format(filename)]
          return None, ReportStats(filename, report=report)
  
      if Settings.verbose:
          truncated_filename = stats.truncate_cwd(filename)
          print("Extracting {}...".format(truncated_filename), end='')
  
      # create the tmpdir
      tmp_dir = _get_archive_tmp_dir(filename)
      if os.path.isdir(tmp_dir):
          shutil.rmtree(tmp_dir)
      os.mkdir(tmp_dir)
  
      # extract archvie into the tmpdir
      if image_format == _CBZ_FORMAT:
          with zipfile.ZipFile(filename, 'r') as zfile:
              zfile.extractall(tmp_dir)
      elif image_format == _CBR_FORMAT:
          with rarfile.RarFile(filename, 'r') as rfile:
              rfile.extractall(tmp_dir)
      else:
          report = '{} {} is not a good format'.format(filename, image_format)
          return None, ReportStats(filename, report=report)
  
      if Settings.verbose:
          print('done')
  
      return tmp_dir, None