class protocol: 
    @staticmethod
    def line_separator() -> str:
        return str("\n")

    @staticmethod
    def setter() -> str:
        return str("=")

    @staticmethod
    def section_buckles() -> [str, str]:
        return ("[", "]")

    @property
    def _line_separator(self) -> str:
        return self.__class__.line_separator()

    @property
    def _setter(self) -> str:
        return self.__class__.setter()
        
    @property
    def _section_buckles(self) -> [str, str]:
        return ("[", "]")