Minor improvements

plugins/handlers/handler.py

@@ -1,10 +1,9 @@
 from pyrogram import filters
-from pyrogram.client import Client
 from pyrogram.types import Message
 
 from classes.pyroclient import PyroClient
 
 
-@Client.on_message(filters.text & filters.private)  # type: ignore
+@PyroClient.on_message(filters.text & filters.private)  # type: ignore
 async def handler_echo(app: PyroClient, message: Message):
     await message.reply(message.text[::-1])