---
title: "readAttributeAliroReaderGroupIdentifier(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterdoorlock/readattributealiroreadergroupidentifier(completion:)"
---

# readAttributeAliroReaderGroupIdentifier(completion:)

## Declaration

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

```swift
func readAttributeAliroReaderGroupIdentifier() async throws -> Data
```