Where should I insert .lower() so that the bot accepts any letter case?

Question

Python

Hello, I have some difficulties with aiogram.
Where should I insert .lower() so that the bot accepts any letter case?

import logging
from aiogram import Bot, Dispatcher, executor, types

@dp.message_handler(text = ['привет'])
async def process_startcommand(message: types.Message):
    await message.answer('здравствуйте')

Answer 1

@dp.message_handler(lambda message: message.text.lower() == 'привет')