code: public static void read(Swagger swagger, Set<Class<?>> classes) {
          final SwaggerAnnotationsReader reader = new SwaggerAnnotationsReader(swagger);
          for (Class<?> cls : classes) {
              final ReaderContext context = new ReaderContext(swagger, cls, "", null, false, new ArrayList<>(),
                      new ArrayList<>(), new ArrayList<>(), new ArrayList<>());
              reader.read(context);
          }
      }
docs: Scans a set of classes for Swagger annotations.
  
  @param swagger is the Swagger instance
  @param classes are a set of classes to scan