from telethon import TelegramClient, events
from telethon.tl.types import PeerChat
import config

chat = 000000000

client = TelegramClient(
    '',
    api_hash=config.telethon['api_hash'],
    api_id=config.telethon['api_id']
).start(bot_token='xxx')


@client.on(events.NewMessage(chats=PeerChat(chat), blacklist_chats=True))
async def main(event):
    print(event)


client.run_until_disconnected()

from telethon import TelegramClient, events
from telethon.tl.types import PeerChat, PeerChannel
import config

chat = 000000000

client = TelegramClient(
    '',
    api_hash=config.telethon['api_hash'],
    api_id=config.telethon['api_id']
).start(bot_token='xxx')


@client.on(events.NewMessage(chats=[PeerChat(chat), PeerChannel(channel)], blacklist_chats=True))
async def main(event):
    print(event)


client.run_until_disconnected()