code: function Assets(brand, mode) {
    var readable = Assets.predefine(this, Assets.predefine.READABLE)
      , enumerable = Assets.predefine(this, { configurable: false })
      , self = this
      , i = 0
      , files;
  
    /**
     * Callback to emit optimized event after all Pagelets have been optimized.
     *
     * @param {Error} error
     * @api private
     */
    function next(error) {
      if (error) return self.emit('error', error);
      if (++i === files.length) self.emit('optimized');
    }
  
    //
    // Default framework to use with reference to the path to core.styl.
    //
    readable('brand', brand = brand || 'nodejitsu');
  
    //
    // Load all assets of the branch.
    //
    (files = fs.readdirSync(assets)).forEach(function include(file) {
      if ('.js' !== path.extname(file) || ~file.indexOf('pagelet')) return;
  
      //
      // Create getter for each pagelet in assets.
      //
      var Pagelet = require(path.join(assets, file));
      enumerable(path.basename(file, '.js'), {
        enumerable: true,
        value: Pagelet.brand(self.brand, mode === 'standalone', next)
      }, true);
    });
  }
docs: Create new collection of assets from a specific brand.
  
  @param {String} brand nodejitsu by default.
  @param {String} mode standalone || bigpipe, defaults to bigpipe.
  @api public