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# subscript(_:)

Returns data captured by the specified capture output, using subscript syntax.

```
subscript(key: AVCaptureOutput) -> AVCaptureSynchronizedData? { get }
```

## Parameters

`key`

The capture output for which to retrieve data.

## Return Value

A synchronized data object corresponding to the specified capture output.

## Discussion

This call is equivalent to the [`synchronizedData(for:)`](/documentation/AVFoundation/AVCaptureSynchronizedDataCollection/synchronizedData(for:)) method, but allows subscript syntax.

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