code: function() {
      var attrs = {};
      for(var key in this) {
        if (key.charAt(0) === '_') continue;
        if (typeof this[key] === 'function') continue;
        if (!this.hasOwnProperty(key)) continue;
        attrs[key] = this.get(key);
      }
      return attrs;
    }
docs: attrs
  
  @return {object} attributes