Aiogram 2.x chat member left | chat_member_on | ChatMemberUpdated

aior.py

from aiogram import Bot, Dispatcher, executor, types
from aiogram.types import AllowedUpdates

import config

bot = Bot(token=config.API_TOKEN)
dp = Dispatcher(bot)


@dp.message_handler(commands=['start'], chat_type='private')
async def start_cmd_message(message: types.Message):
    print(666)


@dp.chat_member_handler()
async def chat_member(member: types.ChatMemberUpdated):
    print(member)


if __name__ == '__main__':
    executor.start_polling(dp, allowed_updates=AllowedUpdates.all())