fn emit_server_hello(
transcript: &mut HandshakeHash,
randoms: &ConnectionRandoms,
suite: &'static Tls13CipherSuite,
cx: &mut Context<'_, ServerConnectionData>,
session_id: &SessionId,
share_and_kxgroup: (&KeyShareEntry, &'static dyn SupportedKxGroup),
chosen_psk_idx: Option<usize>,
resuming_psk: Option<&[u8]>,
config: &ServerConfig,
) -> Result<KeyScheduleHandshake, Error>