code: public com.google.api.ads.admanager.axis.v201811.Money getClickThroughConversionCost() {
          return clickThroughConversionCost;
      }
docs: Gets the clickThroughConversionCost value for this LineItemActivityAssociation.
  
  @return clickThroughConversionCost   * The amount of money to attribute per click through conversion.
  This attribute is
  required for creating a {@code LineItemActivityAssociation}.
  The currency code is readonly
  and should match the {@link LineItem}.