addStickerToSet

Use this method to add a new sticker to a set created by the bot
Emoji sticker sets can have up to 200 stickers
Other sticker sets can have up to 120 stickers

Parameters for add-sticker-to-set
Field Description
user_id * User identifier of sticker set owner
name * Sticker set name
sticker * A JSON-serialized object with information about the added sticker
If exactly the same sticker had already been added to the set, then the set isn't changed.