How to use the @hpcc-js/layout.Accordion function in @hpcc-js/layout

.widgetY(data.AbsoluteSurface.simple.widgetY)
                                    .widgetWidth(data.AbsoluteSurface.simple.widgetWidth)
                                    .widgetHeight(data.AbsoluteSurface.simple.widgetHeight)
                                    .widgetX(data.AbsoluteSurface.simple.widgetX)
                                );
                                break;
                            case Accordion:
                                render(
                                    new Accordion()
                                        .pushListItem(new Accordion()
                                            .pushListItem(new Line()
                                                .columns(data.ND.subjects.columns)
                                                .data(data.ND.subjects.data)
                                            )
                                        )
                                        .pushListItem(new Accordion()
                                            .pushListItem(new Line()
                                                .columns(data.ND.subjects.columns)
                                                .data(data.ND.subjects.data)
                                            )
                                        )
                                        .pushListItem(new Accordion()
                                            .pushListItem(new Line()
                                                .columns(data.ND.subjects.columns)
                                                .data(data.ND.subjects.data)
                                            )
                                            .pushListItem(
                                                new Surface()
                                                    .size({ height: 200, width: 200 })
                                                    .title("Hello and Welcome!")
                                                    .widget(new Line()
                                                        .columns(data.ND.subjects.columns)