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# hasTemporalSubLayerAccess

A Boolean value that indicates if the sample has an HEVC temporal sublayer access (TSA) picture.

```
var hasTemporalSubLayerAccess: Bool { get set }
```

## Discussion

This value maps to the <doc://com.apple.documentation/documentation/CoreMedia/kCMSampleAttachmentKey_HEVCTemporalSubLayerAccess> sample buffer attachment.

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