I am also looking for significance of "configuration" in below callback method of PKIssuerProvisioningExtensionHandler
open func generateAddPaymentPassRequestForPassEntryWithIdentifier(_ identifier: String, configuration: PKAddPaymentPassRequestConfiguration, certificateChain certificates: [Data], nonce: Data, nonceSignature: Data, completionHandler completion: @escaping (PKAddPaymentPassRequest?) -> Void)
Where this can be use while addPaymentPassRequest ?