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

one use

	github.com/gotd/td/tg (current package)
		tl_payments_giveaway_info_slices_gen.go#L247: func (s PaymentsGiveawayInfoResultsArray) Retain(keep func(x PaymentsGiveawayInfoResults) bool) PaymentsGiveawayInfoResultsArray {