docs: protected Map<String, Object> unsetAuthorization(ServiceReference<AuthorizationService> ref) {
          authorization.removeReference((String) ref.getProperty(KEY_ID), ref);
          authorization.removeReference(String.valueOf(ref.getProperty(KEY_SERVICE_ID)), ref);
  
          // determine a new authorization service
          authzService.set(null);
          return getServiceProperties();
      }