asUnionPay
Casts this SessionKeyDerivation as a UnionPay and retrieves its aws.sdk.kotlin.services.paymentcryptographydata.model.SessionKeyUnionPay value. Throws an exception if the SessionKeyDerivation is not a UnionPay.
Casts this SessionKeyDerivation as a UnionPay and retrieves its aws.sdk.kotlin.services.paymentcryptographydata.model.SessionKeyUnionPay value. Throws an exception if the SessionKeyDerivation is not a UnionPay.