@class NSNumber; @interface NUBoolSetting : NUSetting @property (readonly) NSNumber *defaultValue; @property (readonly) NSNumber *identityValue; + (id)deserializeFromDictionary:(id)a0 error:(out id *)a1; - (BOOL)isValid:(out id *)a0; - (BOOL)validate:(id)a0 error:(out id *)a1; - (BOOL)serializeIntoDictionary:(id)a0 error:(out id *)a1; @end