---
title: "readAttributeListStructOctetString(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclustertestcluster/readattributeliststructoctetstring(completionhandler:)"
---

# readAttributeListStructOctetString(completionHandler:)

## Declaration

```swift
func readAttributeListStructOctetString(completionHandler: @escaping @Sendable ([Any]?, (any Error)?) -> Void)
```

```swift
func readAttributeListStructOctetString() async throws -> [Any]
```