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

one use

	github.com/gotd/td/tg (current package)
		tl_page_block_slices_gen.go#L1802: func (s PageBlockEmbedPostArray) Retain(keep func(x PageBlockEmbedPost) bool) PageBlockEmbedPostArray {