code: public void incrementBy(@NonNull StatsCounter other) {
      CacheStats otherStats = other.snapshot();
      hitCount.add(otherStats.hitCount());
      missCount.add(otherStats.missCount());
      loadSuccessCount.add(otherStats.loadSuccessCount());
      loadFailureCount.add(otherStats.loadFailureCount());
      totalLoadTime.add(otherStats.totalLoadTime());
      evictionCount.add(otherStats.evictionCount());
      evictionWeight.add(otherStats.evictionWeight());
    }
docs: Increments all counters by the values in {@code other}.
  
  @param other the counter to increment from