code: public void setTargetWindow(com.google.api.ads.admanager.axis.v201811.AdUnitTargetWindow targetWindow) {
          this.targetWindow = targetWindow;
      }
docs: Sets the targetWindow value for this SuggestedAdUnit.
  
  @param targetWindow   * The {@code target} attribute of the underlying ad tag, as defined
  in the {@link AdUnit}. This
  attribute is read-only and is populated by Google.