# Sandbox.SceneUtility.MakeIdGuidsUnique

```csharp
static Dictionary<System.Guid,System.Guid> MakeIdGuidsUnique(System.Text.Json.Nodes.JsonObject json, System.Nullable<System.Guid> rootGuid = null)
```

### Parameters

- `json` (`System.Text.Json.Nodes.JsonObject`)
- `rootGuid` (`System.Nullable<System.Guid>`), default `null`

### Returns

`Dictionary<System.Guid,System.Guid>`

Declared in [Sandbox.SceneUtility](/api/Sandbox.SceneUtility).
Assembly: `Sandbox.Engine`.