code: @Benchmark
    public int intersectionAndIter(BitmapsForIntersection state)
    {
      ImmutableBitmap intersection = factory.intersection(Arrays.asList(state.bitmaps));
      return iter(intersection);
    }
docs: Benchmark of cumulative cost of bitmap intersection with subsequent iteration over the result. This is a pattern
  from query processing of historical nodes, when {@link org.apache.druid.segment.filter.AndFilter} is used.