---
title: "readAttributeSupportedLocales(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterlocalizationconfiguration/readattributesupportedlocales(completionhandler:)"
---

# readAttributeSupportedLocales(completionHandler:)

## Declaration

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

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