abstract class ScannerEvent {
  const ScannerEvent();
}

class StartScanning extends ScannerEvent {
  const StartScanning();
}

class StopScanning extends ScannerEvent {
  const StopScanning();
}

class BookDetected extends ScannerEvent {
  final Map<String, dynamic> bookData;
  const BookDetected(this.bookData);
}

class ClearDetectedBook extends ScannerEvent {
  const ClearDetectedBook();
}