docs: static DoubleDistributionSummary get(Registry registry, Id id) {
      DoubleDistributionSummary instance = INSTANCES.get(id);
      if (instance == null) {
        final Clock c = registry.clock();
        DoubleDistributionSummary tmp = new DoubleDistributionSummary(c, id, RESET_FREQ);
        instance = INSTANCES.putIfAbsent(id, tmp);
        if (instance == null) {
          instance = tmp;
          registry.register(tmp);
        }
      }
      return instance;
    }