code: private GobblinHelixJobScheduler buildGobblinHelixJobScheduler(Config config, Path appWorkDir,
        List<? extends Tag<?>> metadataTags, SchedulerService schedulerService) throws Exception {
      Properties properties = ConfigUtils.configToProperties(config);
      return new GobblinHelixJobScheduler(properties,
          this.multiManager.getJobClusterHelixManager(),
          this.multiManager.getTaskDriverHelixManager(),
          this.eventBus,
          appWorkDir,
          metadataTags,
          schedulerService,
          this.jobCatalog);
    }
docs: Build the {@link GobblinHelixJobScheduler} for the Application Master.