---
title: IKRig.Constraint.ID
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/ikrig/constraint/id-swift.struct
---

# IKRig.Constraint.ID

The identity type for a constraint in a rig.

## Declaration

```swift
struct ID
```

## Overview

Overview note: Stable only during the lifetime of the containing process.

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)