code: public ListClustersResult withClusterListEntries(ClusterListEntry... clusterListEntries) {
          if (this.clusterListEntries == null) {
              setClusterListEntries(new java.util.ArrayList<ClusterListEntry>(clusterListEntries.length));
          }
          for (ClusterListEntry ele : clusterListEntries) {
              this.clusterListEntries.add(ele);
          }
          return this;
      }
docs: <p>
  Each <code>ClusterListEntry</code> object contains a cluster's state, a cluster's ID, and other important status
  information.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setClusterListEntries(java.util.Collection)} or {@link #withClusterListEntries(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param clusterListEntries
  Each <code>ClusterListEntry</code> object contains a cluster's state, a cluster's ID, and other important
  status information.
  @return Returns a reference to this object so that method calls can be chained together.