snapshot method

Implementation

@override
Future<LocalDiscoverySnapshot> snapshot() async {
  final now = DateTime.now();
  return LocalDiscoverySnapshot(
    sessionId: id,
    devices: currentDevices,
    services: currentDevices.expand((d) => d.services).toList(),
    startedAt: now,
    completedAt: now,
    duration: Duration.zero,
  );
}