docs: public GetLoadBalancerMetricDataResult withMetricData(MetricDatapoint... metricData) {
          if (this.metricData == null) {
              setMetricData(new java.util.ArrayList<MetricDatapoint>(metricData.length));
          }
          for (MetricDatapoint ele : metricData) {
              this.metricData.add(ele);
          }
          return this;
      }