pub fn choose_ciphersuite_preferring_client(
client_suites: &[CipherSuite],
server_suites: &[SupportedCipherSuite],
) -> Option<SupportedCipherSuite>
pub fn choose_ciphersuite_preferring_client(
client_suites: &[CipherSuite],
server_suites: &[SupportedCipherSuite],
) -> Option<SupportedCipherSuite>