code: public java.util.List<ClusterParameterGroupStatus> getClusterParameterGroups() {
          if (clusterParameterGroups == null) {
              clusterParameterGroups = new com.amazonaws.internal.SdkInternalList<ClusterParameterGroupStatus>();
          }
          return clusterParameterGroups;
      }
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>
  
  @return The list of cluster parameter groups that are associated with this cluster. Each parameter group in the
  list is returned with its status.