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

one use

	github.com/gotd/td/tg (current package)
		tl_page_block_slices_gen.go#L1980: func (s PageBlockSlideshowArray) Retain(keep func(x PageBlockSlideshow) bool) PageBlockSlideshowArray {