---
title: clusterUnitTestingAttributeNullableInt56sID
framework: matter
role: symbol
role_heading: Type Property
path: matter/mtrattributeidtype/clusterunittestingattributenullableint56sid
---

# clusterUnitTestingAttributeNullableInt56sID

## Declaration

```swift
static var clusterUnitTestingAttributeNullableInt56sID: MTRAttributeIDType { get }
```