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

one use

	github.com/gotd/td/tg (current package)
		tl_payments_giveaway_info_slices_gen.go#L165: func (s PaymentsGiveawayInfoArray) Retain(keep func(x PaymentsGiveawayInfo) bool) PaymentsGiveawayInfoArray {