def __init__(self, config: MapKeysConfig) -> None:
    super().__init__(config)
    self.__flatters_config = FlatterConfig(level_separator=config.level_separator)
    self.__flatter = Flatter(self.__flatters_config)
    self.__unflatter = Unflatter(self.__flatters_config)
def __init__(self, config: MapKeysConfig) -> None:
    super().__init__(config)
    self.__flatters_config = FlatterConfig(level_separator=config.level_separator)
    self.__flatter = Flatter(self.__flatters_config)
    self.__unflatter = Unflatter(self.__flatters_config)