DOMStoreTransactionChain txChain = dataStore.createTransactionChain();
MapNode cars = carMapBuilder.build();
final Optional<NormalizedNode> optional = txChain.newReadOnlyTransaction()
.read(CarsModel.CAR_LIST_PATH).get(5, TimeUnit.SECONDS);
DOMStoreTransactionChain txChain = dataStore.createTransactionChain();
MapNode cars = carMapBuilder.build();
final Optional<NormalizedNode> optional = txChain.newReadOnlyTransaction()
.read(CarsModel.CAR_LIST_PATH).get(5, TimeUnit.SECONDS);