@Override
  public Map<StorageSlotKey, PathBasedValue<UInt256>> getStorageChanges(final Address address) {
    return storage.getOrDefault(address, Map.of());
  }
Locks the layer so no new changes can be added;
ethereum/core/src/main/java/org/hyperledger/besu/ethereum/trie/pathbased/common/trielog/TrieLogLayer.java