code: public static void runExample(
        AdWordsServicesInterface adWordsServices, AdWordsSession session, List<Long> campaignIds)
        throws RemoteException {
      CampaignGroup campaignGroup = createCampaignGroup(adWordsServices, session);
      addCampaignsToGroup(adWordsServices, session, campaignGroup, campaignIds);
      createPerformanceTarget(adWordsServices, session, campaignGroup);
    }
docs: Runs the example.
  
  @param adWordsServices the services factory.
  @param session the session.
  @param campaignIds the IDs of the campaigns to add to the campaign group.
  @throws ApiException if the API request failed with one or more service errors.
  @throws RemoteException if the API request failed due to other errors.