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# urlSession(_:assetDownloadTask:didReceive:)

Sent when a download task receives an AVMetricEvent.

```
optional func urlSession(_ session: URLSession, assetDownloadTask: AVAssetDownloadTask, didReceive metricEvent: AVMetricEvent)
```

## Parameters

`session`

The NSURLSession corresponding to this AVAssetDownloadTask.

`assetDownloadTask`

The asset download task.

`metricEvent`

The metric event received.

---

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