def row(self, *args):
        """
        Adds a list of KeyboardButton to the keyboard. This function does not consider row_width.
        ReplyKeyboardMarkup#row("A")#row("B", "C")#to_json() outputs '{keyboard: [["A"], ["B", "C"]]}'
        See https://core.telegram.org/bots/api#inlinekeyboardmarkup
        :param args: strings
        :return: self, to allow function chaining.
        """
        btn_array = []
        for button in args:
            btn_array.append(button.to_dic())
        self.keyboard.append(btn_array)
        return self