docs: def cli(**settings):
      """Notify about new reviews in AppStore and Google Play in slack.
  
         Launch command using supervisor or using screen/tmux/etc.
         Reviews are fetched for multiple apps and languages in --beat=300 interval.
      """
      setup_logging(settings)
      settings = setup_languages(settings)
      channels = setup_channel_map(settings)
      app = CriticApp(**dict(settings, channels=channels))
      if settings['sentry_dsn']:
          app.sentry_client = Client(settings['sentry_dsn'])
          logger.debug('Errors are reported to %s' % settings['sentry_dsn'])
      else:
          app.sentry_client = None
  
      if settings['version']:
          click.echo('Version %s' % critics.__version__)
          return
      if not (settings['ios'] or settings['android']):
          click.echo('Please choose either --ios or --android')
          return
  
      loop = tornado.ioloop.IOLoop.instance()
  
      if app.load_model():
          logger.debug('Model loaded OK, not skipping notify on first run')
          notify = True
      else:
          notify = False
  
      if settings['ios']:
          logger.info('Tracking IOS apps: %s', ', '.join(settings['ios']))
          itunes = tornado.ioloop.PeriodicCallback(partial(app.poll_store, 'ios'),
                                                   1000 * settings['beat'], loop)
          itunes.start()
      if settings['android']:
          logger.info('Tracking Android apps: %s', ', '.join(settings['android']))
          google_play = tornado.ioloop.PeriodicCallback(partial(app.poll_store, 'android'),
                                                        1000 * settings['beat'], loop)
          google_play.start()
  
      echo_channel_map(channels)
  
      if settings['ios']:
          app.poll_store('ios', notify=notify)
      if settings['android']:
          app.poll_store('android', notify=notify)
  
      if settings['stats']:
          port = int(settings['stats'])
          logger.debug('Serving metrics server on port %s' % port)
          start_http_server(port)
  
      if settings['daemonize']:
          loop.start()