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# PKPaymentInformationEventExtension

An abstract superclass for an extension to collect payment information and sign transaction data in a QR code purchase.

```
class PKPaymentInformationEventExtension
```

## Overview> Important:
> Before you can add a QR purchase extension you need an entitlement from Apple. For more information on requesting an entitlement, contact apple-pay-inquiries@apple.com.

---

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