{

/**

public function __construct(

private readonly Protocol $protocol,

private readonly LoggerInterface $logger = new NullLogger(),

private readonly ?StatelessProtocol $statelessProtocol = null,

private readonly ?array $handshakeVersions = null,

) {

}

public static function builder(): Builder

{

return new Builder();

}

/**

public function run(TransportInterface $transport): mixed

{

$transport->initialize();

$this->protocol->connect($transport);

// The eras share the transport, not the dispatcher: a transport that

// can tell them apart takes both and picks per request. One that

// cannot carries the handshake era alone.

if ($transport instanceof StatelessAwareTransportInterface) {

$transport->setHandshakeVersions($this->handshakeVersions ?? ProtocolVersion::handshakeVersions());

if (null !== $this->statelessProtocol) {

$transport->connectStateless($this->statelessProtocol);

}

}

$this->logger->info('Running server...');

try {

return $transport->listen();

} finally {

$transport->close();

}

}