final NormalizedNode expCarsNode) throws Exception {
Optional<NormalizedNode> optional = readFromStore.newReadOnlyTransaction().read(CarsModel.BASE_PATH)
.get(15, TimeUnit.SECONDS);
final NormalizedNode expCarsNode) throws Exception {
Optional<NormalizedNode> optional = readFromStore.newReadOnlyTransaction().read(CarsModel.BASE_PATH)
.get(15, TimeUnit.SECONDS);