code: public com.google.api.ads.admanager.axis.v201902.StartDateTimeType getStartDateTimeType() {
          return startDateTimeType;
      }
docs: Gets the startDateTimeType value for this LineItemSummary.
  
  @return startDateTimeType   * Specifies whether to start serving to the {@code LineItem}
  right away, in
  an hour, etc. This attribute is optional and defaults
  to
  {@link StartDateTimeType#USE_START_DATE_TIME}.