@interface NUOpaqueSetting : NUSetting + (id)deserializeFromDictionary:(id)a0 error:(out id *)a1; + (id)supportedAttributes; - (id)deserialize:(id)a0 error:(out id *)a1; - (BOOL)isValid:(out id *)a0; - (BOOL)validatePlistCompatibility:(id)a0 error:(out id *)a1; - (id)serialize:(id)a0 error:(out id *)a1; - (BOOL)validate:(id)a0 error:(out id *)a1; - (BOOL)serializeIntoDictionary:(id)a0 error:(out id *)a1; - (BOOL)validateAttribute:(id)a0 value:(id)a1 error:(out id *)a2; @end