code: function MemcachedCache(options) {
      options = options || {};
  
      this.client = memjs.Client.create(options.url || 'localhost/11211');
      this.expireAfterSeconds = options.expireAfterSeconds || 60;
  }
docs: Cache implementation for memcached
  
  @extends Cache
  
  @param {object} [options] Options
  @param {string} [options.url=http://localhost/11211] memcached URL
  @param {number} [options.expireAfterSeconds=60] Expiration time in seconds
  
  @example
  var memcachedCache = new MemcachedCache({
  url: 'cache.example.com:11211',
  expireAfterSeconds: 600
  });
  
  @constructor