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# AppLocaleDetails.AssetsByDevice

Map of device type to a `DeviceAssetGroup` containing the ordered list of asset IDs and any fallback device references.

```
object AppLocaleDetails.AssetsByDevice
```

## Discussion

Each key is a device type identifier, such as `iphone_6_5` or `iphone_6_7`, not a fixed field name. The `assetsByDevice` field is a free-form map rather than an object with named properties, so the reference page labels this key `Any Key`. The value for each key is a [`DeviceAssetGroup`](/documentation/Apple-Ads-Platform-API/DeviceAssetGroup).

On the parent [`AppLocaleDetails`](/documentation/Apple-Ads-Platform-API/AppLocaleDetails) object, `assetsByDevice` maps each device type to a `DeviceAssetGroup` containing the ordered list of asset IDs and any fallback device references for that locale’s Default Product Page content.

---

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