code: function MemcacheStore (options) {
    options = options || {};
    this._host = options.host || '127.0.0.1';
    this._port = options.port || 11211;
    this._prefix = options.prefix || '';
    this._user = options.user || '';
    this._password = options.password || '';
    this._pool = options.pool = (options.pool > 1 ? options.pool : 1);
    this._connectionString = this._user + ':' + this._password + '@' + this._host + ':' + this._port;
  
    debug('create: host=%s, port=%s, prefix=%s, user=%s, password=%s', this._host, this._port, this._prefix, this._user, this._password);
  
    this._clients = [];
    this._clientIndex = -1;
    for (var i = 0; i < options.pool; i++) {
      this._clients.push(memjs.Client.create(this._connectionString));
    }
  
    return this;
  }
docs: MemcacheStore
  
  @param {Object} options
  - {String} host
  - {String} port
  - {String} prefix
  - {String} user
  - {String} password
  - {Number} pool