class NewUserAttributeEditor implements IsWidget,
                                               HasRestrictedValues<Collection<String>> {

    public NewUserAttributeEditor clear() {
        showAddButton();
        restrictedAttributeNames = null;
        return this;
    }

    @Inject public  NewUserAttributeEditor(final View view,
                                  final Event<CreateUserAttributeEvent> createUserAttributeEventEvent);

}