docs: public CacheManagerBuilder<T> withDefaultWriteBehindThreadPool(String threadPoolAlias) {
      WriteBehindProviderConfiguration config = configBuilder.findServiceByClass(WriteBehindProviderConfiguration.class);
      if (config == null) {
        return new CacheManagerBuilder<>(this, configBuilder.addService(new WriteBehindProviderConfiguration(threadPoolAlias)));
      } else {
        ConfigurationBuilder builder = configBuilder.removeService(config);
        return new CacheManagerBuilder<>(this, builder.addService(new WriteBehindProviderConfiguration(threadPoolAlias)));
      }
    }