code: public GetMetricDataRequest withMetricDataQueries(MetricDataQuery... metricDataQueries) {
          if (this.metricDataQueries == null) {
              setMetricDataQueries(new com.amazonaws.internal.SdkInternalList<MetricDataQuery>(metricDataQueries.length));
          }
          for (MetricDataQuery ele : metricDataQueries) {
              this.metricDataQueries.add(ele);
          }
          return this;
      }
docs: <p>
  The metric queries to be returned. A single <code>GetMetricData</code> call can include as many as 100
  <code>MetricDataQuery</code> structures. Each of these structures can specify either a metric to retrieve, or a
  math expression to perform on retrieved data.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setMetricDataQueries(java.util.Collection)} or {@link #withMetricDataQueries(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param metricDataQueries
  The metric queries to be returned. A single <code>GetMetricData</code> call can include as many as 100
  <code>MetricDataQuery</code> structures. Each of these structures can specify either a metric to retrieve,
  or a math expression to perform on retrieved data.
  @return Returns a reference to this object so that method calls can be chained together.