text: @import Foundation;
  @import MobileCoreServices;
  
  //#import <Foundation/NSExtension.h>
  
  typedef void (^NSExtensionMatchingCompletion)(NSArray *result);
  
  @interface PKDiscoveryDriver : NSObject @end
  
  @class PKDiscoveryDriver;
  
  @interface NSExtension : NSObject
  
  + (PKDiscoveryDriver *)beginMatchingExtensionsWithAttributes:(NSDictionary *)attributes completion:(NSExtensionMatchingCompletion)completion;
  + (void)endMatchingExtensions:(PKDiscoveryDriver *)discoverer;
  
  @property (nonatomic, retain) NSString *identifier;
  
  @end
  
  #import <MobileCoreServices/LSApplicationProxy.h>
  #import <MobileCoreServices/LSApplicationWorkspace.h>
  #import <MobileCoreServices/LSPlugInKitProxy.h>
  