code: public void setAlternativeUnitTypeForecasts(com.google.api.ads.admanager.axis.v201808.AlternativeUnitTypeForecast[] alternativeUnitTypeForecasts) {
          this.alternativeUnitTypeForecasts = alternativeUnitTypeForecasts;
      }
docs: Sets the alternativeUnitTypeForecasts value for this AvailabilityForecast.
  
  @param alternativeUnitTypeForecasts   * Views of this forecast, with alternative unit types.