---
title: clusterUnitTestingAttributeNullableBitmap16ID
framework: matter
role: symbol
role_heading: Type Property
path: matter/mtrattributeidtype/clusterunittestingattributenullablebitmap16id
---

# clusterUnitTestingAttributeNullableBitmap16ID

## Declaration

```swift
static var clusterUnitTestingAttributeNullableBitmap16ID: MTRAttributeIDType { get }
```