docs: public static <S extends Summary> Sketch<S> heapifySketch(final Memory mem,
        final SummaryDeserializer<S> deserializer) {
      final SerializerDeserializer.SketchType sketchType = SerializerDeserializer.getSketchType(mem);
      if (sketchType == SerializerDeserializer.SketchType.QuickSelectSketch) {
        return new QuickSelectSketch<S>(mem, deserializer, null);
      }
      return new CompactSketch<S>(mem, deserializer);
    }