code: public java.util.List<NotificationConfiguration> getNotificationConfigurations() {
          if (notificationConfigurations == null) {
              notificationConfigurations = new com.amazonaws.internal.SdkInternalList<NotificationConfiguration>();
          }
          return notificationConfigurations;
      }
docs: <p>
  The notification configurations.
  </p>
  
  @return The notification configurations.