---
title: attachment
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/asauthorizationplatformpublickeycredentialregistration/attachment
---

# attachment

## Declaration

```swift
var attachment: ASAuthorizationPublicKeyCredentialAttachment { get }
```

## See Also

### Accessing registration properties

- [largeBlob](authenticationservices/asauthorizationplatformpublickeycredentialregistration/largeblob-5nvj9.md)