Struggling in handling received MediaGroup

[cnekmp]

My goal is to create a bot that will handle received MediaGroup messages from user and forward the same data to the channel AS IS. It will act like echo bot, but bot should handle multiple photos,videos and caption in one message for forwarding.

The main struggle is to fill in requirements of function tgbotapi.NewMediaGroup(chatID, files []interface{}) based on received message from user. How to do that? After the files collected I know that I can use bot.SendMediaGroup(config tgbotapi.MediaGroupConfig). But I'm new to Go and need help to make it work together.

Just in case, when bot.SendMessage() is used, messages are being sent one by one in case if MediaGroup is received.

Thanks