method KeyObject.from
Usage in Deno
```typescript import { KeyObject } from "node:node__crypto.d.ts"; ```
KeyObject.from(key: webcrypto.CryptoKey): KeyObject
Example: Converting a `CryptoKey` instance to a `KeyObject`:
```js
const { KeyObject } = await import('node:crypto');
const { subtle } = globalThis.crypto;
const key = await subtle.generateKey({
name: 'HMAC',
hash: 'SHA-256',
length: 256,
}, true, ['sign', 'verify']);
const keyObject = KeyObject.from(key);
console.log(keyObject.symmetricKeySize);
// Prints: 32 (symmetric key size in bytes)
```
key: webcrypto.CryptoKey