code: public static String meterToKind(Registry registry, Meter meter) {
      String kind;
      if (meter instanceof Timer) {
        kind = "Timer";
      } else if (meter instanceof Counter) {
        kind = "Counter";
      } else if (meter instanceof Gauge) {
        kind = "Gauge";
      } else if (meter instanceof DistributionSummary) {
        kind = "DistributionSummary";
      } else {
        kind = meter.getClass().getSimpleName();
      }
      return kind;
    }
docs: Determine the type of a meter for reporting purposes.
  
  @param registry
  Used to provide supplemental information (e.g. to search for the meter).
  
  @param meter
  The meters whose kind we want to know.
  
  @return
  A string such as "Counter". If the type cannot be identified as one of
  the standard Spectator api interface variants, then the simple class name
  is returned.