code: public Cluster withClusterNodes(ClusterNode... clusterNodes) {
          if (this.clusterNodes == null) {
              setClusterNodes(new com.amazonaws.internal.SdkInternalList<ClusterNode>(clusterNodes.length));
          }
          for (ClusterNode ele : clusterNodes) {
              this.clusterNodes.add(ele);
          }
          return this;
      }
docs: <p>
  The nodes in the cluster.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setClusterNodes(java.util.Collection)} or {@link #withClusterNodes(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param clusterNodes
  The nodes in the cluster.
  @return Returns a reference to this object so that method calls can be chained together.