docs: @Override
    protected final MtasDataItemLongAdvanced getItem(int i) {
      if (i >= 0 && i < size) {
        return new MtasDataItemLongAdvanced(advancedValueSumList[i],
            advancedValueSumOfLogsList[i], advancedValueSumOfSquaresList[i],
            advancedValueMinList[i], advancedValueMaxList[i],
            advancedValueNList[i], hasSub() ? subCollectorListNextLevel[i] : null,
            getStatsItems(), sortType, sortDirection, errorNumber[i],
            errorList[i], sourceNumberList[i]);
      } else {
        return null;
      }
    }