forwardMessage(chatId, fromChatId, messageId, form = {}) {
    form.chat_id = chatId;
    form.from_chat_id = fromChatId;
    form.message_id = messageId;
    return this._request('forwardMessage', { form });
  }
Forward messages of any kind.
@param {Number|String} chatId Unique identifier for the target chat or username of the target channel (in the format `@channelusername`)
or username of the target channel (in the format `@channelusername`)
@param {Number|String} fromChatId Unique identifier for the chat where the
original message was sent (or channel username in the format `@channelusername`)
@param {Number|String} messageId  Unique message identifier in the chat specified in fromChatId
@param {Object} [options] Additional Telegram query options
@return {Promise}
@see https://core.telegram.org/bots/api#forwardmessage