github.com/gotd/td/tg.VideoSizeEmojiMarkupArray.Retain (method)

one use

	github.com/gotd/td/tg (current package)
		tl_video_size_slices_gen.go#L260: func (s VideoSizeEmojiMarkupArray) Retain(keep func(x VideoSizeEmojiMarkup) bool) VideoSizeEmojiMarkupArray {