class AbstractReadTransactionRequest extends TransactionRequest<T> {

    @Override
    protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
        return super.addToStringAttributes(toStringHelper).add("snapshotOnly", snapshotOnly);
    }

      AbstractReadTransactionRequest(final TransactionIdentifier identifier, final long sequence, final ActorRef replyTo,
        final boolean snapshotOnly);
      AbstractReadTransactionRequest(final T request, final ABIVersion version);

}