set
Use this method to set a new group sticker set for a supergroup. The bot must be an administrator in the chat for this to work and must have the appropriate administrator rights. Use the field can_set_sticker_set optionally returned in getChat requests to check if the bot can use this method. Returns True on success.
Parameters
chat
Unique identifier for the target chat or username of the target supergroup (in the format @supergroupusername)
sticker
Name of the sticker set to be set as the group sticker set