code: public void setNotificationARNs(java.util.Collection<String> notificationARNs) {
          if (notificationARNs == null) {
              this.notificationARNs = null;
              return;
          }
  
          this.notificationARNs = new com.amazonaws.internal.SdkInternalList<String>(notificationARNs);
      }
docs: <p>
  SNS topic ARNs to which stack related events are published.
  </p>
  
  @param notificationARNs
  SNS topic ARNs to which stack related events are published.