<!--
{
  "availability" : [
    "iOS: 26.0.0 -",
    "iPadOS: 26.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AppMigrationKit",
  "identifier" : "/documentation/AppMigrationKit/AppMigrationTester/DeviceToDeviceExportProperties",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "AppMigrationKit"
    ],
    "preciseIdentifier" : "s:15AppMigrationKit0aB6TesterC08DeviceToE16ExportPropertiesV"
  },
  "title" : "AppMigrationTester.DeviceToDeviceExportProperties"
}
-->

# AppMigrationTester.DeviceToDeviceExportProperties

Properties that describe the result of a device-to-device export.

```
struct DeviceToDeviceExportProperties
```

## Topics

### Inspecting data size properties

[`let uncompressedBytes: Int`](/documentation/AppMigrationKit/AppMigrationTester/DeviceToDeviceExportProperties/uncompressedBytes)

The number of uncompressed bytes written to the exporter.

[`let compressedBytes: Int?`](/documentation/AppMigrationKit/AppMigrationTester/DeviceToDeviceExportProperties/compressedBytes)

The number of compressed bytes written to the migration infrastructure, if the extension uses compression.

[`let sizeEstimate: Int`](/documentation/AppMigrationKit/AppMigrationTester/DeviceToDeviceExportProperties/sizeEstimate)

The size estimate provided by the app extension.

### Inspecting metadata properties

[`let version: String`](/documentation/AppMigrationKit/AppMigrationTester/DeviceToDeviceExportProperties/version)

The data version provided by the app extension.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)