KeyObject interface 
An interface compatible with NodeJS's tls.KeyObject.
We want to avoid publicly re-exporting the actual interface,
since it might vary across runtime versions.
Properties
| passphrase | Optional passphrase. | 
| pem | Private keys in PEM format. | 
Property Details
passphrase
Optional passphrase.
passphrase?: stringProperty Value
string
pem
Private keys in PEM format.
pem: string | BufferProperty Value
string | Buffer