code: func NewMediaGroup(chatID int64, files []interface{}) MediaGroupConfig {
  	return MediaGroupConfig{
  		BaseChat: BaseChat{
  			ChatID: chatID,
  		},
  		InputMedia: files,
  	}
  }
docs: // NewMediaGroup creates a new media group. Files should be an array of
  // two to ten InputMediaPhoto or InputMediaVideo.