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# init(targetedCMSampleBuffer:options:completionHandler:)

Creates a new request with a completion handler that targets an image in a sample buffer.

```
init(targetedCMSampleBuffer sampleBuffer: CMSampleBuffer, options: [VNImageOption : Any] = [:], completionHandler: VNRequestCompletionHandler? = nil)
```

## Parameters

`sampleBuffer`

A sample buffer containing a valid <doc://com.apple.documentation/documentation/CoreMedia/CMSampleBuffer/imageBuffer>.

`options`

A dictionary with options specifying auxiliary information for the image.

`completionHandler`

The callback the system invokes when the request finishes executing.

## Discussion

---

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