用 telethon 监听群消息，能监听到自己发出的消息，无法收到别人发的消息

有大佬能帮我看一下吗，代码如下：

from telethon import TelegramClient,events
import socks

api_id = 000000
api_hash = 'aaaaaaaaaaaaaaaa'
phone='+1111111111111'

with TelegramClient('anon', api_id, api_hash, proxy=(socks.HTTP, "127.0.0.1", 8234)) as client:
    @client.on(events.NewMessage)
    async def handler(event):
        print(event.message.text)

    client.run_until_disconnected()