public ImmutableMultisetFloodingTest() {
    super(
        Arrays.asList(ConstructionPathway.values()),
        n -> n * Math.log(n),
        ImmutableList.of(
            QueryOp.create(
                "count",
                (ms, o) -> {
                  int unused = ms.count(o);
                },
                Math::log)));
  }

  /** All the ways to create an ImmutableMultiset. */