code: public DescribeClusterTracksResult withMaintenanceTracks(MaintenanceTrack... maintenanceTracks) {
          if (this.maintenanceTracks == null) {
              setMaintenanceTracks(new com.amazonaws.internal.SdkInternalList<MaintenanceTrack>(maintenanceTracks.length));
          }
          for (MaintenanceTrack ele : maintenanceTracks) {
              this.maintenanceTracks.add(ele);
          }
          return this;
      }
docs: <p>
  A list of maintenance tracks output by the <code>DescribeClusterTracks</code> operation.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setMaintenanceTracks(java.util.Collection)} or {@link #withMaintenanceTracks(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param maintenanceTracks
  A list of maintenance tracks output by the <code>DescribeClusterTracks</code> operation.
  @return Returns a reference to this object so that method calls can be chained together.