github.com/gotd/td/tg.InputStorePaymentPurposeClassArray.AsInputStorePaymentPremiumGiveaway (method)

one use

	github.com/gotd/td/tg (current package)
		tl_input_store_payment_purpose_slices_gen.go#L159: func (s InputStorePaymentPurposeClassArray) AsInputStorePaymentPremiumGiveaway() (to InputStorePaymentPremiumGiveawayArray) {