code: public void setTimeWindows(com.google.api.ads.admanager.axis.v201811.DateTime[] timeWindows) {
          this.timeWindows = timeWindows;
      }
docs: Sets the timeWindows value for this ForecastBreakdownOptions.
  
  @param timeWindows   * The boundaries of time windows to configure time breakdown.
  
  <p>By default, the time window of the forecasted {@link
  LineItem} is assumed if none are
  explicitly specified in this field. But if set, at
  least two {@link DateTime}s are needed to
  define the boundaries of minimally one time window.
  
  <p>Also, the time boundaries are required to be in
  the same time zone, in strictly ascending
  order.