@class NSSet, NSString, NSURL, NSOperationQueue; @interface _UIDocumentURLChangeObserver : NSObject <NSFilePresenter> @property (copy, nonatomic) id /* block */ changeHandler; @property (readonly, nonatomic, getter=isObserving) BOOL observing; @property (readonly, copy) NSURL *presentedItemURL; @property (readonly, retain) NSOperationQueue *presentedItemOperationQueue; @property (readonly, copy) NSURL *primaryPresentedItemURL; @property (readonly) NSSet *observedPresentedItemUbiquityAttributes; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; @end