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

one use

	github.com/gotd/td/tg (current package)
		tl_sticker_set_covered_slices_gen.go#L191: func (s StickerSetCoveredArray) Retain(keep func(x StickerSetCovered) bool) StickerSetCoveredArray {