---
title: "readAttributeAcceptHeader(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclustercontentlauncher/readattributeacceptheader(completionhandler:)"
---

# readAttributeAcceptHeader(completionHandler:)

## Declaration

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

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