@inheritdoc
| Name | Type | Description | 
|---|---|---|
| tree$ | Observable<T> | The navigation retrieved in a single navigation call. | 
| loading$ | Observable<boolean> | The loading state for retrieving a single navigation. | 
| errors$ | Observable< DaffStateError[]> | Errors associated with retrieving a single navigation. | 
| dispatch | Dispatches the given action. |