How to use the ipyvuetify.Card function in ipyvuetify

def backend_widget(backend: Union[IBMQBackend, FakeBackend]) -> None:
    """Display backend information as a widget.

    Args:
        backend: Display information about this backend.
    """
    cred = backend._credentials
    last_tab = vue.TabItem(children=[])
    card = vue.Card(height=600, outlined=True,
                    children=[
                        vue.Toolbar(flat=True, color="#002d9c",
                                    children=[
                                        vue.ToolbarTitle(children=['{} @ ({}/{}/{})'.format(
                                            backend.name(),
                                            cred.hub,
                                            cred.group,
                                            cred.project)],
                                                         style_="color:white")]),
                        vue.Tabs(vertical=True,
                                 children=[
                                     vue.Tab(children=['Configuration']),
                                     vue.Tab(children=['Qubits']),
                                     vue.Tab(children=['Multi-Qubit Gates']),
                                     vue.Tab(children=['Error map']),
                                     vue.Tab(children=['Job Summary']),