See: https://core.telegram.org/bots/api#setchatstickerset

async def setChatStickerSet(self, chat_id, sticker_set_name):
        """ See: https://core.telegram.org/bots/api#setchatstickerset """
        p = _strip(locals())
        return await self._api_request('setChatStickerSet', _rectify(p))