---
title: <
framework: webkitjs
role: symbol
role_heading: Instance Method
path: webkitjs/webkitsubtlecrypto/2871440
---

# <

## Declaration

```data
Promise <(
    KeyFormat format, 
    CryptoOperationData wrappedKey, 
    Key unwrappingKey, 
    AlgorithmIdentifier unwrapAlgorithm, 
    AlgorithmIdentifier? unwrappedKeyAlgorithm, 
    optional boolean extractable, 
    optional sequence <KeyUsage> keyUsages
);
```