docs: @Override
      public void unregisterService(String serviceName, String providerId) {
          boolean isOwned = false;
          CachedProviderServiceInstance inst = getCachedServiceInstance(serviceName, providerId);
  
          if(inst != null){
              isOwned = true;
              this.unregisterCachedServiceInstance(serviceName, providerId);
          }
  
          this.getServiceDirectoryClient().unregisterInstance(serviceName, providerId, isOwned);
      }