code: public CreateClusterRequest withApplication(ApplicationConfig application) {
          if (this.applications == null) {
              this.applications = new ArrayList<ApplicationConfig>();
          }
          this.applications.add(application);
          return this;
      }
docs: Configure optional application for the cluster. BMR provides applications such as Hive、Pig、HBase for the cluster.
  
  @param application An ApplicationConfig instance.
  @return CreateClusterRequest