---
title: operation
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/asauthorizationpublickeycredentiallargeblobassertioninput-swift.struct/operation-swift.property
---

# operation

The reading or writing operation the input performs.

## Declaration

```swift
var operation: ASAuthorizationPublicKeyCredentialLargeBlobAssertionInput.Operation
```

## See Also

### Inspecting the operation

- [ASAuthorizationPublicKeyCredentialLargeBlobAssertionInput.Operation](authenticationservices/asauthorizationpublickeycredentiallargeblobassertioninput-swift.struct/operation-swift.enum.md)