code: public void setBandwidthGroups(com.google.api.ads.admanager.axis.v201808.Technology[] bandwidthGroups) {
          this.bandwidthGroups = bandwidthGroups;
      }
docs: Sets the bandwidthGroups value for this BandwidthGroupTargeting.
  
  @param bandwidthGroups   * The bandwidth groups that are being targeted or excluded by
  the
  {@link LineItem}.