Add a sticker to a sticker set.
For bots the sticker set must have been created by this bot.
Sticker set short name or TL object with input sticker set
Sticker to be added
Optional
Upload progress callback
Number of bytes uploaded
Total file size
Modfiied sticker set
Add a sticker to a sticker set.
For bots the sticker set must have been created by this bot.