docs: protected void registerAddOperation(final ManagementResourceRegistration registration, final AbstractAddStepHandler handler,
                                          OperationEntry.Flag... flags) {
          registration.registerOperationHandler(getOperationDefinition(ModelDescriptionConstants.ADD,
                  new DefaultResourceAddDescriptionProvider(registration, descriptionResolver, orderedChild), OperationEntry.EntryType.PUBLIC, flags)
                  , handler);
      }