code: public GetMetricStatisticsRequest withStatistics(Statistic... statistics) {
          com.amazonaws.internal.SdkInternalList<String> statisticsCopy = new com.amazonaws.internal.SdkInternalList<String>(statistics.length);
          for (Statistic value : statistics) {
              statisticsCopy.add(value.toString());
          }
          if (getStatistics() == null) {
              setStatistics(statisticsCopy);
          } else {
              getStatistics().addAll(statisticsCopy);
          }
          return this;
      }
docs: <p>
  The metric statistics, other than percentile. For percentile statistics, use <code>ExtendedStatistics</code>.
  When calling <code>GetMetricStatistics</code>, you must specify either <code>Statistics</code> or
  <code>ExtendedStatistics</code>, but not both.
  </p>
  
  @param statistics
  The metric statistics, other than percentile. For percentile statistics, use
  <code>ExtendedStatistics</code>. When calling <code>GetMetricStatistics</code>, you must specify either
  <code>Statistics</code> or <code>ExtendedStatistics</code>, but not both.
  @return Returns a reference to this object so that method calls can be chained together.
  @see Statistic