docs: protected MultivaluedMap<String, String> getDefaultPerPageParam(boolean customAttributesEnabled) {
  
          GitLabApiForm form = new GitLabApiForm().withParam(PER_PAGE_PARAM, getDefaultPerPage());
          if (customAttributesEnabled)
              return (form.withParam("with_custom_attributes", true).asMap());
  
          return (form.asMap());
      }