class WordHelpers():
    @staticmethod
    def camel_case(word):
        pass

    @staticmethod
    def upper_case(word):
        pass

    @staticmethod
    def snake_case(word):
        pass

    @staticmethod
    def constants(word):
        return WordHelpers.upper_case(WordHelpers.snake_case(word))

    @staticmethod
    def variable(word):
        pass

    @staticmethod
    def function(word):
        pass

    @staticmethod
    def classname(word):
        pass

    @staticmethod
    def method(word):
        pass