code: private void setRestrictedAttributes(Map<String, String> attributes) {
  
          // Translate disabled attribute
          getModel().setDisabled("true".equals(attributes.get(DISABLED_ATTRIBUTE_NAME)));
  
      }
docs: Stores all restricted (privileged) attributes within the underlying user
  group model, pulling the values of those attributes from the given Map.
  
  @param attributes
  The Map to pull all restricted attributes from.