View Source ExTDLib.Method.AddStickerToSet (ExTDLib v0.0.4)

Adds a new sticker to a set; for bots only. Returns object_ptr<Ok>.

NameTypeDescription
user_idstringSticker set owner.
namestringSticker set name.
stickerinputStickerSticker to add to the set.

More details on telegram's documentation.