---
title: nullableOptionalListWasNull
framework: matter
role: symbol
role_heading: Instance Property
path: matter/mtrunittestingclustertestcomplexnullableoptionalresponseparams/nullableoptionallistwasnull
---

# nullableOptionalListWasNull

## Declaration

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