docs: function (err, data) {
        debug(' => service response:', err, data);
        if (err) return next(err.cause || err);
  
        res.data = data;
  
        if (!data) {
          debug(`No content returned for '${req.url}'`);
          res.status(statusCodes.noContent);
        } else if (method === 'post') {
          res.status(statusCodes.created);
        }
  
        return next();
      }