code: def infer_game_name_from_filenames(data_dir, snake_case=True):
    
    names = os.listdir(data_dir)
    game_names = [re.findall(pattern=r"^Gym(.*)NoFrameskip", string=name)
                  for name in names]
    assert game_names, "No data files found in {}".format(data_dir)
    game_names = sum(game_names, [])
    game_name = game_names[0]
    assert all(game_name == other for other in game_names), \
        "There are multiple different game names in {}".format(data_dir)
    if snake_case:
      game_name = camelcase_to_snakecase(game_name)
    return game_name
docs: Infer name from filenames.