code: function(req, res) {
          _log.info("_handle", "About to shutdown");
  
          _protoParent.handle.call(this, req, res);
  
          // Any HTTP Request Method will be accepted for this command. Some drivers like HEAD for example...
          if (req.urlParsed.file === "shutdown") {
              res.statusCode = 200;
              res.setHeader("Content-Type", "text/html;charset=UTF-8");
              res.setHeader("Content-Length", 36);
              res.write("<html><body>Closing...</body></html>");
              res.close();
              return;
          }
  
          throw _protoParent.errors.createInvalidReqInvalidCommandMethodEH(req);
      }
docs: private: