ResolveUsernameRequest in particular
 
I have exactly the same code
 
Is it running as bot or userbot?
 
Ah, it is telethon chat link
 
but that's how it is done currently
 
does it have get_sender_or_channel?
 
no, unless you know what you're doing
 
or maybe the documentation
 
we have half the bytes to test
 
well yes it would be a schema