code: def get_bundle_registered_services(self, bundle):
          # type: (Any) -> List[ServiceReference]
          
          with self.__svc_lock:
              return sorted(self.__bundle_svc.get(bundle, []))
docs: Retrieves the services registered by the given bundle. Returns None
          if the bundle didn't register any service.
  
          :param bundle: The bundle to look into
          :return: The references to the services registered by the bundle