code: public com.google.api.ads.admanager.axis.v201805.Stats getStats() {
          return stats;
      }
docs: Gets the stats value for this LineItemSummary.
  
  @return stats   * Contains trafficking statistics for the line item. This attribute
  is
  readonly and is populated by Google. This will be
  {@code null} in case
  there are no statistics for a line item yet.