code: public GetSamplingTargetsResult withUnprocessedStatistics(UnprocessedStatistics... unprocessedStatistics) {
          if (this.unprocessedStatistics == null) {
              setUnprocessedStatistics(new java.util.ArrayList<UnprocessedStatistics>(unprocessedStatistics.length));
          }
          for (UnprocessedStatistics ele : unprocessedStatistics) {
              this.unprocessedStatistics.add(ele);
          }
          return this;
      }
docs: <p>
  Information about <a>SamplingStatisticsDocument</a> that X-Ray could not process.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setUnprocessedStatistics(java.util.Collection)} or
  {@link #withUnprocessedStatistics(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param unprocessedStatistics
  Information about <a>SamplingStatisticsDocument</a> that X-Ray could not process.
  @return Returns a reference to this object so that method calls can be chained together.