[Encoding]

Hello. I have a Russian-language server. Messages are incorrectly transmitted to discord from the game chat. How and where can I change the encoding?

[Mods for C#: Documentation]

Where can I find documentation on classes and functions for mods in C#?
Give me a link, please.

[Mods for C#: SteamID]

The Player.SteamID field is missing in the A20 version. 
There is no Player.SteamID field in the A20 version.
Are there any alternatives to getting a player's SteamID?
How else can I find out the player's Steam ID?