setStickerEmojiList(sticker, emojiList, form = {}) {
    form.sticker = sticker;
    form.emoji_list = stringify(emojiList);
    return this._request('setStickerEmojiList', { form });
  }
Use this method to change the list of emoji assigned to a regular or custom emoji sticker.

The sticker must belong to a sticker set created by the bot.

@param {String} sticker File identifier of the sticker
@param { Array } emojiList A JSON-serialized list of 1-20 emoji associated with the sticker
@param {Object} [options] Additional Telegram query options
@return {Promise} True on success
@see https://core.telegram.org/bots/api#setstickeremojilist