---
title: supportPreferred
framework: authenticationservices
role: symbol
role_heading: Type Property
path: authenticationservices/asauthorizationpublickeycredentiallargeblobregistrationinput-swift.struct/supportpreferred
---

# supportPreferred

A value that indicates the app needs binary large object support.

## Declaration

```swift
static var supportPreferred: ASAuthorizationPublicKeyCredentialLargeBlobRegistrationInput { get }
```

## See Also

### Using defined support values

- [supportRequired](authenticationservices/asauthorizationpublickeycredentiallargeblobregistrationinput-swift.struct/supportrequired.md)