@class NSSet, NSDictionary, NSString, CHSWidgetDescriptorProvider, NSObject, NSHashTable; @protocol OS_dispatch_queue; @interface NTKWidgetDescriptorProvider : NSObject <CHSWidgetDescriptorProviderObserver> { NSObject<OS_dispatch_queue> *_queue; CHSWidgetDescriptorProvider *_widgetDescriptorProvider; struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } _lock; BOOL _lock_firstLoadCompleted; NSSet *_lock_widgetDescriptors; NSDictionary *_lock_descriptorsByExtensionIdentifier; NSHashTable *_lock_observers; } @property (class, readonly, nonatomic) NTKWidgetDescriptorProvider *sharedInstance; @property (readonly, nonatomic) BOOL initalLoadCompleted; @property (readonly, copy, nonatomic) NSSet *descriptors; @property (readonly, copy, nonatomic) NSDictionary *descriptorsByExtensionIdentifier; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)init; - (void)registerObserver:(id)a0; - (void)reloadDescriptorsForContainerIdentifier:(id)a0 completion:(id /* block */)a1; - (void)unregisterObserver:(id)a0; - (void)descriptorsDidChangeForDescriptorProvider:(id)a0; - (void).cxx_destruct; - (void)_queue_widgetDescriptorsChanged; @end