code: function uncaughtExceptionHandler(err) {
      var em = new ErrorMessage();
  
      errorHandlerRouter(err, em);
      client.sendError(em, handleProcessExit);
      setTimeout(handleProcessExit, 2000);
    }
docs: The actual exception handler creates a new instance of `ErrorMessage`,
  extracts infomation from the propagated `Error` and marshals it into the
  `ErrorMessage` instance, attempts to send this `ErrorMessage` instance to
  the Stackdriver Error Reporting API. Subsequently the process is
  terminated.
  @function uncaughtExceptionHandler
  @listens module:process~event:uncaughtException
  @param {Error} err - The error that has been uncaught to this point
  @returns {Undefined} - does not return a value