*/
    Object getNotificationOperationId();

    /**
     * The time that the event occurred.
     *
     * @since 4.4
     */
    long getNotificationOperationProgressTimestamp();

    /**
     * A structured object providing details about the operation that was performed.
     */
    Object getNotificationOperationProgressDetails();

        }

        @Override
        public Object getNotificationOperationId() {
            return id;
        }

        @Override
        public long getNotificationOperationProgressTimestamp() {
            return timestamp;
        }

        @Override
        public Object getNotificationOperationProgressDetails() {
            return details;
        }

    }