code: public com.google.api.ads.admanager.axis.v201808.DeliveryIndicator getDeliveryIndicator() {
          return deliveryIndicator;
      }
docs: Gets the deliveryIndicator value for this LineItemSummary.
  
  @return deliveryIndicator   * Indicates how well the line item has been performing. This
  attribute is
  readonly and is populated by Google. This will be
  {@code null} if the
  delivery indicator information is not available due
  to one of the following
  reasons:
  <ol>
  <li>The line item is not delivering.</li>
  <li>The line item has an unlimited goal or cap.</li>
  <li>The line item has a percentage based goal or cap.</li>
  </ol>