How developer will get to know which card type user (Amex, visa, discovery) has selected in swift?

is am using This delegate method, but i am getting type of card(debit/credit) info i want to know this card is from mastercard / visa or amex.

func paymentAuthorizationController(_ controller: PKPaymentAuthorizationController, didSelectPaymentMethod paymentMethod: PKPaymentMethod) async -> PKPaymentRequestPaymentMethodUpdate { print(paymentMethod.displayName ?? "") return PKPaymentRequestPaymentMethodUpdate(paymentSummaryItems: payemntRequest.paymentSummaryItems) }

How developer will get to know which card type user (Amex, visa, discovery) has selected in swift?
 
 
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