@Override
  public Optional<Bytes> getExistingData(
      final WorldStateStorageCoordinator worldStateStorageCoordinator) {
    return worldStateStorageCoordinator.getAccountStorageTrieNode(
        getAccountHash(), getLocation(), getNodeHash());
  }
Represents a healing request for a storage trie node.
ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/snapsync/request/heal/StorageTrieNodeHealingRequest.java