Telethon client

Third party integrations AppDaemon
1

Hello
I am trying to create a Telegram client with Telethon library

import configparser
import json
import appdaemon.plugins.hass.hassapi as hass
from telethon.sync import TelegramClient
import asyncio
import threading

class read_channel(hass.Hass):
    def initialize(self):
        self.listen_event(self.update, "FIRST_EVENT")
        config = configparser.ConfigParser()
        config.read("/config/cred.ini")
        #self.log("a")
        # Setting configuration values
        api_id = config['Telegram']['api_id']
        api_hash = config['Telegram']['api_hash']
        
        api_hash = str(api_hash)
        
        phone = config['Telegram']['phone']
        username = config['Telegram']['username']
        stringSession=config['Telegram']['stringSession']
        client=TelegramClient(StringSession(stringSession), api_id, api_hash)
        client.start()
        
    def update(self, event, data, kvargs):
        # Reading Configs
        self.log("start")

But I am receiving the error:
RuntimeError: There is no current event loop in thread ‘ThreadPoolExecutor-0_0’.

I am not very familiar with threads and asyncio, so will be thankful for any assistance.