---
title: clusterUnitTestingAttributeListNullablesAndOptionalsStructID
framework: matter
role: symbol
role_heading: Type Property
path: matter/mtrattributeidtype/clusterunittestingattributelistnullablesandoptionalsstructid
---

# clusterUnitTestingAttributeListNullablesAndOptionalsStructID

## Declaration

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