Python类方法中的装饰器

Hi friends i'm trying to apply decorator from another class on method in my class... it is my implementation of this Telegram API wrapper library : https://github.com/eternnoir/pyTelegramBotAPI

但在我的示例中，不是想从脚本中使用它，而是要像这样使用类方法：

class Bot:

def __init__(self, key):
    self.key = key
    self.bot=telebot.TeleBot(key)

def start(self):
    self.bot.polling()

# Handle '/start' and '/help'
@self.bot.message_handler(commands=['help', 'start'])
def send_welcome(self,message):
    self.bot.reply_to(message, """\
    Hi there, I am EchoBot. \
    I am here to echo your kind words back to you. \
    Just say anything nice and I'll say the exact same thing to you!\
    """)


# Handle all other messages with content_type 'text' (content_types defaults to ['text'])
@self.bot.message_handler(func=lambda message: True)
def echo_message(message):
    self.bot.reply_to(message, message.text)

所有“自我”都被突出显示了……肯定不能正常工作-如果有人可以解释我做错了什么会很高兴？ 尝试自定义的原始示例是：

import telebot

bot = telebot.TeleBot("TOKEN")

@bot.message_handler(commands=['start', 'help'])
def send_welcome(message):
    bot.reply_to(message, "Howdy, how are you doing?")

@bot.message_handler(func=lambda message: True)
def echo_all(message):
    bot.reply_to(message, message.text)

bot.polling()