code: def get_running_races(self, year=None):
          
          if year is None:
              year = datetime.datetime.now().year
      
          params = {"year": year}
  
          result_fetcher = functools.partial(self.protocol.get,
                                             '/running_races',
                                             **params)
  
          return BatchedResultsIterator(entity=model.RunningRace, bind_client=self,
                                        result_fetcher=result_fetcher)
docs: Gets a running races for a given year.
  
          http://strava.github.io/api/v3/running_races/#list
  
          :param year: year for the races (default current)
          
          :return: An iterator of :class:`stravalib.model.RunningRace` objects.
          :rtype: :class:`BatchedResultsIterator`