---
title: "readAttributeMACAddress(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterwakeonlan-1df75/readattributemacaddress(completion:)"
---

# readAttributeMACAddress(completion:)

## Declaration

```swift
func readAttributeMACAddress(completion: @escaping @Sendable (String?, (any Error)?) -> Void)
```

```swift
func readAttributeMACAddress() async throws -> String
```