A listing to show the bug in aiogram with wrapped functions

aiogram_wrapped_bug.py

import functools
import logging
from typing import Coroutine
from aiogram import Bot, Dispatcher, executor, types
from aiogram.contrib.fsm_storage.memory import MemoryStorage

API_TOKEN = 'BOT_TOKEN_HERE'

# Configure logging
logging.basicConfig(level=logging.INFO)

# Initialize bot and dispatcher
bot = Bot(token=API_TOKEN)
dp = Dispatcher(bot, storage=MemoryStorage())

def my_decorator(func: Coroutine):
    @functools.wraps(func)
    async def wrapped(*args, **kwargs):
        print(f"in wrapped")
        return (await func(*args, **kwargs))
    return wrapped

@dp.message_handler(commands=['start', 'help'])
@my_decorator
async def send_welcome(message: types.Message):
    await message.reply("Hi!\nI'm EchoBot!\nPowered by aiogram.")

if __name__ == '__main__':
    executor.start_polling(dp, skip_updates=True)