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# PKObject

An opaque type that acts as the superclass for the pass object.

```
class PKObject
```

## Overview

Never use this class directly. Use the [`PKPass`](/documentation/PassKit/PKPass) or [`PKPaymentPass`](/documentation/PassKit/PKPaymentPass) classes instead.

## See Also

  [Apple Pay Programming Guide](https://developer.apple.com/library/archive/ApplePay_Guide/index.html#//apple_ref/doc/uid/TP40014764)

  [Wallet Developer Guide](https://developer.apple.com/library/archive/documentation/UserExperience/Conceptual/PassKit_PG/index.html#//apple_ref/doc/uid/TP40012195)


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