code: public ElasticLoadBalancer withSubnetIds(String... subnetIds) {
          if (this.subnetIds == null) {
              setSubnetIds(new com.amazonaws.internal.SdkInternalList<String>(subnetIds.length));
          }
          for (String ele : subnetIds) {
              this.subnetIds.add(ele);
          }
          return this;
      }
docs: <p>
  A list of subnet IDs, if the stack is running in a VPC.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSubnetIds(java.util.Collection)} or {@link #withSubnetIds(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param subnetIds
  A list of subnet IDs, if the stack is running in a VPC.
  @return Returns a reference to this object so that method calls can be chained together.