code: def get_traffic(self, subreddit):
          
          url = self.config['subreddit_traffic'].format(
              subreddit=six.text_type(subreddit))
          return self.request_json(url)
docs: Return the json dictionary containing traffic stats for a subreddit.
  
          :param subreddit: The subreddit whose /about/traffic page we will
              collect.