How to use the feeluown.app.App function in feeluown

return 1  # run_cli
        cli_cmds = ('show', 'play', 'search')
        if args.cmd not in cli_cmds:
            print_error('Fuo daemon not started.')
            sys.exit(1)
        return 2  # run_once

    if not args.no_window:
        try:
            import PyQt5  # noqa
        except ImportError:
            logger.warning('PyQt5 is not installed, can only use daemon mode.')
        else:
            config.MODE |= App.GuiMode
    if not args.no_server:
        config.MODE |= App.DaemonMode
    return 3

is_daemon_started = is_port_used(23333) or is_port_used(23334)
        if is_daemon_started:
            return 1  # run_cli
        cli_cmds = ('show', 'play', 'search')
        if args.cmd not in cli_cmds:
            print_error('Fuo daemon not started.')
            sys.exit(1)
        return 2  # run_once

    if not args.no_window:
        try:
            import PyQt5  # noqa
        except ImportError:
            logger.warning('PyQt5 is not installed, can only use daemon mode.')
        else:
            config.MODE |= App.GuiMode
    if not args.no_server:
        config.MODE |= App.DaemonMode
    return 3

def run_forever(args, config):
    is_daemon_started = is_port_used(23333) or is_port_used(23334)
    if config.MODE & App.DaemonMode and is_daemon_started:
        print_error('Fuo daemon is already started.')
        sys.exit(1)

    if config.MODE & App.GuiMode:
        prepare_gui()
    app = setup_app(args, config)
    if sys.platform.lower() == 'darwin':
        enable_mac_hotkey()
    loop = asyncio.get_event_loop()
    try:
        if not config.MODE & App.GuiMode:
            if config.MODE & App.DaemonMode:
                # when started with daemon mode, show some message to tell user
                # that the program is running.
                print('Fuo daemon running on 0.0.0.0:23333 (tcp)')
            else:

def run_once(args, config):
    import warnings
    warnings.filterwarnings("ignore")

    config.MODE = App.CliMode
    app = setup_app(args, config)
    oncemain(app, args)

def disable(app):
    app.library.deregister(provider)
    if app.mode & App.GuiMode:
        app.providers.remove(provider.identifier)

obj = compile(code, '', 'single')
        self._g.update({
            'app': self,
            'player': self.player
        })
        exec(obj, self._g, self._g)


class GuiApp(CliApp, QWidget, AppCodeRunnerMixin):
    """
    FIXME: Subclass must call initialize to make this mixin
    work properly, which seems to be little bit strange. But
    this mixin helps avoid duplicate code temporarily.
    """

    mode = App.GuiMode | App.CliMode

    def __init__(self, pubsub_gateway, player_kwargs=None):
        CliApp.__init__(self, pubsub_gateway, player_kwargs=player_kwargs)
        QWidget.__init__(self)

        self.request = Request(self)
        self.tips_manager = TipsManager(self)
        self.hotkey_manager = Hotkey(self)
        #: collections manager
        self.coll_mgr = CollectionManager(self)
        self.img_ctl = ImgController(self)

        self.playlists = PlaylistsModel(parent=self)
        self.histories = HistoriesModel(parent=self)
        self.providers = ProvidersModel(parent=self)
        self.my_music = MyMusicModel(parent=self)

def enable(app):
    app.library.register(provider)
    if app.mode & App.GuiMode:
        from feeluown.components.provider import ProviderModel

        pm = ProviderModel(
            name='QQ 音乐',
            icon='♫ ',
            desc='点击登录 QQ 音乐（未实现，欢迎 PR）',
            on_click=None,
        )
        app.providers.assoc(provider.identifier, pm)

def enable(app):
    logger.info('Register provider: %s', provider)
    loop = asyncio.get_event_loop()
    future_scan = loop.run_in_executor(None, provider.scan)
    app.library.register(provider)
    if app.mode & App.GuiMode:
        from feeluown.components.provider import ProviderModel

        pm = ProviderModel(
            name='本地音乐',
            icon='♪ ',
            desc='点击显示所有本地音乐',
            on_click=partial(show_provider, app),
        )
        logger.info('Associate %s with %s', provider, pm.name)
        app.providers.assoc(provider.identifier, pm)
        future_scan.add_done_callback(lambda _: show_provider(app))