code: public Cluster withClusterParameterGroups(ClusterParameterGroupStatus... clusterParameterGroups) {
          if (this.clusterParameterGroups == null) {
              setClusterParameterGroups(new com.amazonaws.internal.SdkInternalList<ClusterParameterGroupStatus>(clusterParameterGroups.length));
          }
          for (ClusterParameterGroupStatus ele : clusterParameterGroups) {
              this.clusterParameterGroups.add(ele);
          }
          return this;
      }
docs: <p>
  The list of cluster parameter groups that are associated with this cluster. Each parameter group in the list is
  returned with its status.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setClusterParameterGroups(java.util.Collection)} or
  {@link #withClusterParameterGroups(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param clusterParameterGroups
  The list of cluster parameter groups that are associated with this cluster. Each parameter group in the
  list is returned with its status.
  @return Returns a reference to this object so that method calls can be chained together.