code: public void setFrequencyCap(com.google.api.ads.admanager.axis.v201811.FrequencyCap frequencyCap) {
          this.frequencyCap = frequencyCap;
      }
docs: Sets the frequencyCap value for this LabelFrequencyCap.
  
  @param frequencyCap   * The frequency cap to be applied with this label.