Function self_signed_client_auth
pub fn self_signed_client_auth() -> Result<(Vec<CertificateDer<'static>>, PrivateKeyDer<'static>), Box<dyn Error + Send + Sync>>pub fn self_signed_client_auth() -> Result<(Vec<CertificateDer<'static>>, PrivateKeyDer<'static>), Box<dyn Error + Send + Sync>>