@Override
  public Optional<Bytes> getExistingData(
      final WorldStateStorageCoordinator worldStateStorageCoordinator) {
    return worldStateStorageCoordinator
        .getAccountStateTrieNode(getLocation(), getNodeHash())
        .filter(data -> !getLocation().isEmpty());
  }
Represents a healing request for an account trie node.
ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/snapsync/request/heal/AccountTrieNodeHealingRequest.java