Argument of type "None" cannot be assigned to parameter "buttons" of type "MarkupLike"

[MuhammadSawalhy]

Checklist

• [x] The error is in the library's code, and not in my own.
• [x] I have searched for this issue before posting it and there isn't a duplicate.
• [x] I ran pip install -U https://github.com/LonamiWebs/Telethon/archive/master.zip and triggered the bug in the latest version.

I am using pyright for static checking and lining with coc-pyright. But it seems that you miss-typed the buttons argument in the send_message and the send_file methods.

I fixed that by editing the code of this package directly like this:

-            buttons: 'hints.MarkupLike' = None,
+            buttons: 'hints.MarkupLike' | None = None,