code: function forceEnd(path, response) {
  
              // Send a custom response for gateway timeout
              new $CustomResponse().head(504, null, {
                  'Content-Type': 'text/html'
              }).writeSync(`<h1>${RESPONSE_HEADER_MESSAGES[ 504 ]}</h1>`);
  
              // Log something
              $LogProvider.error(path, response._header);
  
              // End the response
              end(response);
          }
docs: Force an ended response with a timeout