@class NSString; @interface NUANFDebugSettingsProvider : NSObject <NUANFDebugSettingsProvider> @property (readonly, nonatomic) BOOL viewportDebuggingEnabled; @property (readonly, nonatomic) BOOL testingConditionEnabled; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)removeObserver:(id)a0; - (void)addObserver:(id)a0; @end