---
title: "isRoot"
description: "Verifies that the node is the root of the 3D semantics hierarchy."
type: "function"
lastmod: "2026-06-18T10:32:52.442138Z"
---
## API Reference

### isRoot

> Source set: Android

```kotlin
public fun isRoot(): SubspaceSemanticsMatcher
```

Verifies that the node is the root of the 3D semantics hierarchy.

#### Returns

| | |
| --- | --- |
|  | a matcher that matches the root semantics node. |