code: public com.google.api.ads.adwords.axis.v201809.ch.ChangeStatus getCampaignChangeStatus() {
          return campaignChangeStatus;
      }
docs: Gets the campaignChangeStatus value for this CampaignChangeData.
  
  @return campaignChangeStatus   * Whether or not the fields of this campaign have changed. Changes
  to campaign level criteria and
  ad extensions are enumerated in their respective lists
  and will not be reflected in this
  status.