@Override
  public CompletableFuture<Void> visitAll(
      final Consumer<Node<V>> nodeConsumer, final ExecutorService executorService) {
    return CompletableFuture.completedFuture(null);
  }
A noop {@link MerkleTrie}.

@param <V> The type of values of this trie.
ethereum/trie/src/main/java/org/hyperledger/besu/ethereum/trie/NoOpMerkleTrie.java