public DurableEnumeratorFactory<V> mapFactory(@NotNull StorageFactory<? extends DurableIntToMultiIntMap> valueHashToIdFactory) {
    return new DurableEnumeratorFactory<>(valueDescriptor, valuesLogFactory, valueHashToIdFactory,
                                          rebuildMapFromLogIfInconsistent, mapFileSuffix);
  }
public DurableEnumeratorFactory<V> mapFactory(@NotNull StorageFactory<? extends DurableIntToMultiIntMap> valueHashToIdFactory)