How to use the jsdoctypeparser.Builder.RecordType function in jsdoctypeparser

}
            break;

        case node instanceof TypeBuilder.RecordType:
            // entries: Array.
            node.typeName = 'Object';
            res = cb(node) || [];
            if (node.entries) {
                res.concat(node.entries.map(function(subnode) {
                    subnode.parentElement = node;
                    _iterateDocTypes(subnode, cb);
                }));
            }
            break;

        case node instanceof TypeBuilder.RecordType.Entry:
            // name: string,
            // typeUnion: TypeUnion
            node.typeUnion.collectionNode = node;
            res = _iterateDocTypes(node.typeUnion, cb);
            break;

        case node instanceof TypeBuilder.ModuleName:
            node.typeName = node.name;
            node.module = true;
            res = cb(node);
            break;

        default:
            throw new Error('DocType: Unsupported doc node');
    }

var types = (function transform(type) {
    if(type instanceof Builder.TypeUnion) {
      return type.types.map(transform);
    } else if(type instanceof Builder.TypeName) {
      return type.name;
    } else if(type instanceof Builder.RecordType) {
      return type.entries.reduce(function(obj, entry) {
        obj[entry.name] = transform(entry.typeUnion);
        return obj;
      }, {});
    } else {
      return type.toString();
    }
  }(result));