# Provider

Source: https://www.nianticspatial.com/docs/api/unity/NianticSpatial.NSDK.AR.XRSubsystems.XRVps2AssetSubsystem.Provider/

Provider
> extends UnityEngine.SubsystemsImplementation.SubsystemProvider
The provider API for XRVps2AssetSubsystem-derived classes to implement.

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## Declaration

public abstract class Provider : SubsystemProvider<XRVps2AssetSubsystem>

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## Methods

| Name | Type | Summary |
| --- | --- | --- |
| GetChanges | TrackableChanges<XRVps2Asset> | Get the changes (added, updated, and removed) to tracked assets since the last call to this method. |
| TryTrackAsset | bool | Requests tracking of a VPS map asset's origin, identified by its asset ID. |

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