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

one use

	github.com/gotd/td/tg (current package)
		tl_messages_sponsored_messages_slices_gen.go#L207: func (s MessagesSponsoredMessagesArray) Retain(keep func(x MessagesSponsoredMessages) bool) MessagesSponsoredMessagesArray {