code: function () {
          const cronJobsToStart = _getNamesOfCronJobsToStart();
          if (!cronJobsToStart && _shouldStartCrons() && Shared.isDbConnectionAvailable() === true) {
              return CronJobManagerJob.startListening().then(function () {
                  Logger.tag('Cron').info('Cron Job Manager is started. Starting all available cron jobs');
                  return Q();
              }, function (err) {
                  Logger.tag('Cron').error('Error starting Cron Job Manager ');
                  return Q.reject(err);
              });
          } else if (cronJobsToStart && _shouldStartCrons()) {
  
              Logger.tag('Cron').info('Starting specific cron jobs "' + cronJobsToStart.join(', ') + '"');
  
              try {
                  const cronJobs = Shared.cronModules(cronJobsToStart);
                  let promises = [];
                  for (let cron of cronJobs) {
                      // Set force run config
                      cron.forceRun = true;
                      promises.push(cron.worker(cron, cron));
                  }
                  return Q.all(promises)
                      .then(() => process.exit())
                      .catch(() => process.exit(1));
              } catch (err) {
                  process.exit(1);
              }
          } else {
              Logger.tag('Cron').warn('Cron Manager is disabled for this environment.');
              return Q();
          }
      }
docs: Start cron manager
  @returns {*}
  @private