How to use the feeluown.logger.LOG.info function in feeluown

def on_mode_changed(self, mode):
        LOG.info('current play mode is %d.'
                 ' 1 for single in loop, 3 for loop, 4 for random' % mode)
        self._update_mode_icon()

def Next(self):
        LOG.info('dbus: call play_next')
        ControllerApi.player.play_next()

def keyboard_tap_callback(proxy, type_, event, refcon):
        from AppKit import NSKeyUp, NSEvent, NSBundle
        NSBundle.mainBundle().infoDictionary()['NSAppTransportSecurity'] =\
            dict(NSAllowsArbitraryLoads=True)
        if type_ < 0 or type_ > 0x7fffffff:
            LOG.error('Unkown mac event')
            run_event_loop()
            LOG.error('restart mac key board event loop')
            return event
        try:
            key_event = NSEvent.eventWithCGEvent_(event)
        except:
            LOG.info("mac event cast error")
            return event
        if key_event.subtype() == 8:
            key_code = (key_event.data1() & 0xFFFF0000) >> 16
            key_state = (key_event.data1() & 0xFF00) >> 8
            if key_code in (16, 19, 20):
                # 16 for play-pause, 19 for next, 20 for previous
                if key_state == NSKeyUp:
                    if key_code is 19:
                        ControllerApi.player.play_next()
                    elif key_code is 20:
                        ControllerApi.player.play_last()
                    elif key_code is 16:
                        ControllerApi.player.play_or_pause()
                return None
        return event

def on_set_favorite_btn_clicked(cls, checked=True):
        if not cls.controller.state["current_mid"]:
            return False
        data = cls.controller.api.set_music_to_favorite(cls.controller.state['current_mid'], checked)
        cls.controller.desktop_mini.content.is_song_like = checked
        if not cls.controller.api.is_response_ok(data):
            ViewOp.ui.LOVE_SONG_BTN.setChecked(not checked)
            cls.controller.desktop_mini.content.is_song_like = not checked
            return False
        playlist_detail = cls.controller.api.get_playlist_detail(cls.controller.api.favorite_pid, cache=False)
        if not cls.controller.api.is_response_ok(playlist_detail):
            ViewOp.ui.STATUS_BAR.showMessage("刷新 -喜欢列表- 失败")
            return False
        if cls.controller.state['current_pid'] == cls.controller.api.favorite_pid:
            LOG.info("喜欢列表的歌曲发生变化")
            ViewOp.ui.WEBVIEW.load_playlist(playlist_detail)
        return True

def OpenUri(self, Uri):
        LOG.info('dbus: call play open uri')