---
title: nullableOptionalStructWasNull
framework: matter
role: symbol
role_heading: Instance Property
path: matter/mtrunittestingclustertestcomplexnullableoptionalresponseparams/nullableoptionalstructwasnull
---

# nullableOptionalStructWasNull

## Declaration

```swift
@NSCopying var nullableOptionalStructWasNull: NSNumber? { get set }
```