---
title: clusterUnitTestingAttributeNullableInt40uID
framework: matter
role: symbol
role_heading: Type Property
path: matter/mtrattributeidtype/clusterunittestingattributenullableint40uid
---

# clusterUnitTestingAttributeNullableInt40uID

## Declaration

```swift
static var clusterUnitTestingAttributeNullableInt40uID: MTRAttributeIDType { get }
```