property SecureContextOptions.key
Usage in Deno
```typescript import { type SecureContextOptions } from "node:node__tls.d.ts"; ```Private keys in PEM format. PEM allows the option of private keys
being encrypted. Encrypted keys will be decrypted with
options.passphrase. Multiple keys using different algorithms can be
provided either as an array of unencrypted key strings or buffers,
or an array of objects in the form {pem: [,
passphrase: ]}. The object form can only occur in an array.
object.passphrase is optional. Encrypted keys will be decrypted with
object.passphrase if provided, or options.passphrase if it is not.