@interface SXClassFactory : NSObject + (void)stopTesting; + (void)initialize; + (id /* block */)valueClassBlockForBaseClass:(Class)a0; + (void)startTesting; + (void)registerClass:(Class)a0 type:(id)a1 baseClass:(Class)a2; + (Class)classForBaseClass:(Class)a0 type:(id)a1; @end