docs: public DescribeJobResult withSubJobMetadata(JobMetadata... subJobMetadata) {
          if (this.subJobMetadata == null) {
              setSubJobMetadata(new java.util.ArrayList<JobMetadata>(subJobMetadata.length));
          }
          for (JobMetadata ele : subJobMetadata) {
              this.subJobMetadata.add(ele);
          }
          return this;
      }