class ModifyTransactionRequest extends TransactionRequest<ModifyTransactionRequest> implements SliceableMessage {

    public Optional<PersistenceProtocol> getPersistenceProtocol() {
        return Optional.ofNullable(protocol);
    }

      ModifyTransactionRequest(final TransactionIdentifier target, final long sequence, final ActorRef replyTo,
        final List<TransactionModification> modifications, final PersistenceProtocol protocol);

}