return multimapGenerator.order(insertionOrder);
    }
  }

  static class ValuesGenerator<K, V, M extends Multimap<K, V>>
      implements TestCollectionGenerator<V> {
    private final OneSizeTestContainerGenerator<M, Entry<K, V>> multimapGenerator;

    public ValuesGenerator(OneSizeTestContainerGenerator<M, Entry<K, V>> multimapGenerator) {
      this.multimapGenerator = multimapGenerator;
    }