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# AVMutableAssetDownloadStorageManagementPolicy

A mutable object that you use to create a new storage management policy.

```
class AVMutableAssetDownloadStorageManagementPolicy
```

## Topics

### Managing storage

[`expirationDate`](/documentation/AVFoundation/AVMutableAssetDownloadStorageManagementPolicy/expirationDate)

The expiration date for an asset.

[`priority`](/documentation/AVFoundation/AVMutableAssetDownloadStorageManagementPolicy/priority)

The eviction priority for a downloaded asset.

[`AVAssetDownloadedAssetEvictionPriority`](/documentation/AVFoundation/AVAssetDownloadedAssetEvictionPriority)

Constants that define eviction priorities for a storage management policy.


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