docs: function () {
              var content;
              xtpl.renderFile(path.join(__dirname, 'views/includes/xtpl.html'), getData(), function (err, html) {
                  if (err) {
                      console.log(err);throw err;
                  }
                  content = html;
              });
              if (!content) {
                  throw new Error('xtpl sync error');
              }
          }