---
title: "init(key:data:)"
framework: applearchive
role: symbol
role_heading: Initializer
path: "applearchive/archiveheader/entryxatblob/extendedattribute/init(key:data:)"
---

# init(key:data:)

Creates a new extended attribute structure.

## Declaration

```swift
init(key: String, data: ContiguousArray<UInt8>)
```

## Parameters

- `key`: The attribute key.
- `data`: The attribute data.