---
title: "readAttributeCurrentOutput(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusteraudiooutput/readattributecurrentoutput(completionhandler:)"
---

# readAttributeCurrentOutput(completionHandler:)

## Declaration

```swift
func readAttributeCurrentOutput(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeCurrentOutput() async throws -> NSNumber
```