Илья

from collections.abc import Mapping

    def __deep_update(source : dict, overrides : dict):
        for key, value in overrides.items():
            if isinstance(value, Mapping) and value:
                returned = __deep_update(source.get(key, {}), value)
                source[key] = returned
            else:
                source[key] = overrides[key]
        return source

@client.event
async def on_ready(): 
	channel = client.get_channel("your channel id")  
	await channel.send("your message")

from telethon import TelegramClient, events, utils
import server

async def handler_all(event):
    if event.action_message == None and event.new_pin == True:
		return

	    channel_id = event.action_message.peer_id.channel_id
	    message_id = event.action_message.reply_to.reply_to_msg_id
	    print(message_id)
	    messages = await client.get_messages(channel_id, limit=100)

	    for message in messages:
		    if message.id == message_id:
			    print("[+] Найдено новое закрепленное сообщение")
			    server.post(message.text)
			    break