pub(super) fn process_alpn_protocol(
common: &mut CommonState,
offered_protocols: &[ProtocolName],
selected: Option<&ProtocolName>,
) -> Result<(), Error>pub(super) fn process_alpn_protocol(
common: &mut CommonState,
offered_protocols: &[ProtocolName],
selected: Option<&ProtocolName>,
) -> Result<(), Error>