code: public static <C extends AsyncCache<?, ?>> C monitor(MeterRegistry registry, C cache, String cacheName, String... tags) {
          return monitor(registry, cache, cacheName, Tags.of(tags));
      }
docs: Record metrics on a Caffeine cache. You must call {@link Caffeine#recordStats()} prior to building the cache
  for metrics to be recorded.
  
  @param registry  The registry to bind metrics to.
  @param cache     The cache to instrument.
  @param cacheName Will be used to tag metrics with "cache".
  @param tags      Tags to apply to all recorded metrics. Must be an even number of arguments representing key/value pairs of tags.
  @param <C>       The cache type.
  @return The instrumented cache, unchanged. The original cache is not wrapped or proxied in any way.