@class NSString, NSObject; @protocol OS_os_log; @interface EMInternalPreferences : NSObject <EFLoggable> @property (class, readonly) NSObject<OS_os_log> *log; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (id)observeChangesForPreference:(unsigned long long)a0 autoCancelToken:(BOOL)a1 usingBlock:(id /* block */)a2; + (void)_setUserDefaultEnabled:(BOOL)a0 forKey:(id)a1; + (id)defaultForPreference:(unsigned long long)a0; + (BOOL)preferenceEnabled:(unsigned long long)a0; + (void)setPreference:(unsigned long long)a0 enabled:(BOOL)a1; + (BOOL)_preferenceEnabled:(unsigned long long)a0; + (void)_registerForDefaultChanges; + (void)observeValueForKeyPath:(id)a0 ofObject:(id)a1 change:(id)a2 context:(void *)a3; + (BOOL)_userDefaultEnabledForKey:(id)a0 defaultValue:(BOOL)a1; + (id)observeChangesForPreference:(unsigned long long)a0 usingBlock:(id /* block */)a1; + (BOOL)_hasUserDefaultValueForKey:(id)a0 expectedValue:(id)a1; @end