code: public static ConcurrentMapCache monitor(MeterRegistry registry, ConcurrentMapCache cache, String... tags) {
          return monitor(registry, cache, Tags.of(tags));
      }
docs: Record metrics on a ConcurrentMapCache cache.
  
  @param registry The registry to bind metrics to.
  @param cache    The cache to instrument.
  @param tags     Tags to apply to all recorded metrics. Must be an even number of arguments representing key/value pairs of tags.
  @return The instrumented cache, unchanged. The original cache is not wrapped or proxied in any way.