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# init(sampleBuffer:)

Creates a timed metadata group with a sample buffer.

```
convenience init?(sampleBuffer: CMReadySampleBuffer<CMSampleBuffer.DynamicContent>)
```

## Parameters

`sampleBuffer`

A <doc://com.apple.documentation/documentation/CoreMedia/CMReadySampleBuffer> with media type <doc://com.apple.documentation/documentation/CoreMedia/kCMMediaType_Metadata>.

## Return Value

An instance of `AVTimedMetadataGroup`.

---

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