code: public java.util.List<MetricTransformation> getMetricTransformations() {
          if (metricTransformations == null) {
              metricTransformations = new com.amazonaws.internal.SdkInternalList<MetricTransformation>();
          }
          return metricTransformations;
      }
docs: <p>
  A collection of information that defines how metric data gets emitted.
  </p>
  
  @return A collection of information that defines how metric data gets emitted.