How to set up proxy in aiogram?

Question

Python

When starting a telegram bot written in aiogram, when connecting to a proxy, it gives an error:
AttributeError: 'Bot' object has no attribute 'session'.

spoiler

I use socks5

The official repository of the library says that you need to additionally install aiohttp_proxy. I did it, but the error does not go away.
How to proceed?

Answer 1

Those who code on Vend must suffer.