code: public void setRecommendations(java.util.Collection<ReservationPurchaseRecommendation> recommendations) {
          if (recommendations == null) {
              this.recommendations = null;
              return;
          }
  
          this.recommendations = new java.util.ArrayList<ReservationPurchaseRecommendation>(recommendations);
      }
docs: <p>
  Recommendations for reservations to purchase.
  </p>
  
  @param recommendations
  Recommendations for reservations to purchase.