text: // Copyright 2016-present 650 Industries. All rights reserved.
  
  #import <Foundation/Foundation.h>
  #import <AVFoundation/AVFoundation.h>
  #import <UIKit/UIKit.h>
  
  @protocol EXBarCodeScannerInterface
  
  - (void)setSession:(AVCaptureSession *)session;
  - (void)setSessionQueue:(dispatch_queue_t)sessionQueue;
  - (void)setOnBarCodeScanned:(void (^)(NSDictionary *))onBarCodeScanned;
  
  - (void)setIsEnabled:(BOOL)enabled;
  - (void)setSettings:(NSDictionary *)settings;
  
  - (void)setPreviewLayer:(AVCaptureVideoPreviewLayer *)previewLayer;
  
  - (void)maybeStartBarCodeScanning;
  - (void)stopBarCodeScanning;
  
  @end
  