# `GSShapeGroupID.GSShapeGroupIDRoot`

*Type Property*

The group ID reserved for the root group of a layer.

## Declaration

```swift
static let root: GSShapeGroup.ID
```

```objc
static GSShapeGroupID const GSShapeGroupIDRoot;
```

```python
GSShapeGroupIDRoot: GSShapeGroupID
```

## See Also

### Identity

- [`GSShapeGroup.groupId`](/Core/GlyphsCore/GSShapeGroup/groupId) — The per-layer identifier of the group.
- [`GSShapeGroup.root`](/Core/GlyphsCore/GSShapeGroup/root) — Whether the group is the root of the shape tree.