class PrefixTrieMultiMap implements Serializable {

  public void traverseEntries(BiConsumer<Prefix, Set<T>> consumer) {
    traverseNodes(node -> consumer.accept(node._prefix, ImmutableSet.copyOf(node._elements)));
  }

  public  PrefixTrieMultiMap(Prefix prefix);
  public  PrefixTrieMultiMap();

}