How to listen to new messages on a specific channel? about gramjs HOT 1 OPEN

import { NewMessage } from 'telegram/events'
const callbackFunction= async (event:any) => {
    eventHandler(event); //example function
} 
Client.addEventHandler(callbackFunction, new NewMessage({ incoming: true, channels: ['@something' , '@somthing2']  }) )

//if you want to remove the event for some reason 
Client.removeEventHandler(callbackFunction)