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

one use

	github.com/gotd/td/tg (current package)
		tl_input_sticker_set_slices_gen.go#L57: func (s InputStickerSetClassArray) Retain(keep func(x InputStickerSetClass) bool) InputStickerSetClassArray {