@class BSMutableKeyedSettings, BSMutableSettings; @interface FBSSettingsDiffInspector : NSObject { BSMutableKeyedSettings *_observerInfo; BSMutableSettings *_otherSettingsObserverInfo; BOOL _iteratingObservers; } - (id)init; - (void)dealloc; - (id)succinctDescriptionBuilder; - (id)descriptionBuilderWithMultilinePrefix:(id)a0; - (void)removeAllObservers; - (id)description; - (id)descriptionWithMultilinePrefix:(id)a0; - (void).cxx_destruct; - (id)succinctDescription; - (void)inspectDiff:(id)a0 withContext:(void *)a1; - (void)observeOtherSetting:(unsigned long long)a0 withBlock:(id /* block */)a1; - (void)_observeSettingNamed:(id)a0 withBlock:(id /* block */)a1; - (void)observeProperty:(SEL)a0 withBlock:(id /* block */)a1; @end