final YangInstanceIdentifier path = ((ExistsTransactionRequest) request).getPath();
final boolean result = readOnlyView().readNode(path).isPresent();
callback.accept(new ExistsTransactionSuccess(request.getTarget(), request.getSequence(), result));
final YangInstanceIdentifier path = ((ExistsTransactionRequest) request).getPath();
final boolean result = readOnlyView().readNode(path).isPresent();
callback.accept(new ExistsTransactionSuccess(request.getTarget(), request.getSequence(), result));