How to use the pytelegrambotapi.util function in pyTelegramBotAPI

def add(self, *args):
        """
        This function adds strings to the keyboard, while not exceeding row_width.
        E.g. ReplyKeyboardMarkup#add("A", "B", "C") yields the json result {keyboard: [["A"], ["B"], ["C"]]}
        when row_width is set to 1.
        When row_width is set to 2, the following is the result of this function: {keyboard: [["A", "B"], ["C"]]}
        See https://core.telegram.org/bots/api#replykeyboardmarkup
        :param args: KeyboardButton to append to the keyboard
        """
        i = 1
        row = []
        for button in args:
            if util.is_string(button):
                row.append({'text': button})
            elif isinstance(button, bytes):
                row.append({'text': button.decode('utf-8')})
            else:
                row.append(button.to_dic())
            if i % self.row_width == 0:
                self.keyboard.append(row)
                row = []
            i += 1
        if len(row) > 0:
            self.keyboard.append(row)

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#replykeyboardmarkup
        :param args: strings
        :return: self, to allow function chaining.
        """
        btn_array = []
        for button in args:
            if util.is_string(button):
                btn_array.append({'text': button})
            else:
                btn_array.append(button.to_dic())
        self.keyboard.append(btn_array)
        return self

def send_video_note(token, chat_id, data, duration=None, length=None, reply_to_message_id=None, reply_markup=None,
                    disable_notification=None, timeout=None):
    method_url = r'sendVideoNote'
    payload = {'chat_id': chat_id}
    files = None
    if not util.is_string(data):
        files = {'video_note': data}
    else:
        payload['video_note'] = data
    if duration:
        payload['duration'] = duration
    if length:
        payload['length'] = length
    else:
        payload['length'] = 639  # seems like it is MAX length size
    if reply_to_message_id:
        payload['reply_to_message_id'] = reply_to_message_id
    if reply_markup:
        payload['reply_markup'] = _convert_markup(reply_markup)
    if disable_notification:
        payload['disable_notification'] = disable_notification
    if timeout: