# Editor.EditorUtility.Prefabs.IsGameObjectAddedToInstance

```csharp
static bool IsGameObjectAddedToInstance(GameObject go)
```

`M:PrefabInstanceData.IsAddedGameObject(Sandbox.GameObject)`

### Parameters

- `go` (`GameObject`)

### Returns

`bool`

Declared in [Editor.EditorUtility.Prefabs](/api/Editor.EditorUtility.Prefabs).
Assembly: `Sandbox.Tools`.