---
title: "writeAttributeNullableInt8u(withValue:completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterunittesting/writeattributenullableint8u(withvalue:completion:)"
---

# writeAttributeNullableInt8u(withValue:completion:)

## Declaration

```swift
func writeAttributeNullableInt8u(withValue value: NSNumber?, completion: @escaping @Sendable ((any Error)?) -> Void)
```

```swift
func writeAttributeNullableInt8u(withValue value: NSNumber?) async throws
```