docs: public DescribeScalingPlansRequest withScalingPlanNames(String... scalingPlanNames) {
          if (this.scalingPlanNames == null) {
              setScalingPlanNames(new java.util.ArrayList<String>(scalingPlanNames.length));
          }
          for (String ele : scalingPlanNames) {
              this.scalingPlanNames.add(ele);
          }
          return this;
      }