code: public DescribeScalingPlansResult withScalingPlans(ScalingPlan... scalingPlans) {
          if (this.scalingPlans == null) {
              setScalingPlans(new java.util.ArrayList<ScalingPlan>(scalingPlans.length));
          }
          for (ScalingPlan ele : scalingPlans) {
              this.scalingPlans.add(ele);
          }
          return this;
      }
docs: <p>
  Information about the scaling plans.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setScalingPlans(java.util.Collection)} or {@link #withScalingPlans(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param scalingPlans
  Information about the scaling plans.
  @return Returns a reference to this object so that method calls can be chained together.