code: function countMinutes(redisClient,  keyPrepend, key, callback) {
      var multi = redisClient.multi();
      var currentTimeKey = getMinutesSinceEpoch();
      for (var i = currentTimeKey; i > currentTimeKey-MAX_KEYS; --i ) {
          multi.get(keyPrepend+"m:"+i+":"+key);
      }
      multi.exec(callback);
  }
docs: ## Redis getters