;
    }
  }

  /**
   * A generic function which converts a list of memory dumps to a list of
   * chart series.
   *
   * @param {!Array<!tr.model.ContainerMemoryDump>} memoryDumps List of
   *     container memory dumps.
   * @param {!function(
   *     !tr.model.ContainerMemoryDump,
   *     !function(string, number, string=))} dumpSizeExtractor Callback for
   *     extracting sizes from a container memory dump.
   * @return {(!Array<!tr.ui.tracks.ChartSeries>|undefined)} List of chart
   *     series (