code: public LoadBalancer withInstanceHealthSummary(InstanceHealthSummary... instanceHealthSummary) {
          if (this.instanceHealthSummary == null) {
              setInstanceHealthSummary(new java.util.ArrayList<InstanceHealthSummary>(instanceHealthSummary.length));
          }
          for (InstanceHealthSummary ele : instanceHealthSummary) {
              this.instanceHealthSummary.add(ele);
          }
          return this;
      }
docs: <p>
  An array of InstanceHealthSummary objects describing the health of the load balancer.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setInstanceHealthSummary(java.util.Collection)} or
  {@link #withInstanceHealthSummary(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param instanceHealthSummary
  An array of InstanceHealthSummary objects describing the health of the load balancer.
  @return Returns a reference to this object so that method calls can be chained together.