pub fn new_self_signed_tls_certificate_chain(
keypair: &Keypair,
san: IpAddr,
) -> Result<(Vec<Certificate>, PrivateKey), Box<dyn Error>>
pub fn new_self_signed_tls_certificate_chain(
keypair: &Keypair,
san: IpAddr,
) -> Result<(Vec<Certificate>, PrivateKey), Box<dyn Error>>