How to add an inline buttons to an album?

[jokaorgua]

Hello. I'm tyring to add InlineKeyboard to an album.

The code is the following

type Alert struct {
	Body     string
	Receiver string
	Images   []Image
	Buttons  [][]Button
}

var markup *tb.ReplyMarkup


markup = &tb.ReplyMarkup{}
var inlineKeyboard [][]tb.InlineButton

for _, rowButtons := range alert.Buttons {
	var row []tb.InlineButton
	for _, btnData := range rowButtons {
		btn := tb.InlineButton{
			Text: btnData.Text,
		}
		if btnData.URL != "" {
			btn.URL = btnData.URL
		} else if btnData.Data != "" {
			btn.Unique = btnData.Data
			btn.Data = btnData.Data
		}
		row = append(row, btn)
	}
	inlineKeyboard = append(inlineKeyboard, row)
}
markup.InlineKeyboard = inlineKeyboard


sendOpts := &tb.SendOptions{
	ParseMode:   tb.ModeHTML,
	ReplyMarkup: markup,
}

album := tb.Album{}
for _, image := range alert.Images {
	photo := &tb.Photo{
		File: tb.FromReader(bytes.NewReader(image.Body)),
	}

	album = append(album, photo)
}

album.SetCaption(alert.Body)

_, err := telegramBot.SendAlbum(&receiver, album, sendOpts)
if err != nil {
	log.Errorf("Error sending alert with images: %v", err)
}

after this code the inline keyboard does not appear.

Thanks for the hints.