code: public static LinkedBindingBuilder<HandlerWrapper> bindSecurityHandler(final Binder binder)
      {
          return binder.bind(HandlerWrapper.class).annotatedWith(SECURITY_NAMED);
      }
docs: Bind a delegating security handler. Any request will be routed through this handler and can be allowed or denied by this handler. If no handler
  is bound, requests are forwarded to the internal handler collection.