def stop_frontends():
    for frontend_class_name in settings.FRONTENDS:
        try:
            frontend_class = importing.get_class(frontend_class_name)
            process.stop_actors_by_class(frontend_class)
        except exceptions.OptionalDependencyError:
            pass

    def on_stop(self):
        if self.zeroconf_service:
            self.zeroconf_service.unpublish()

        process.stop_actors_by_class(session.MpdSession)

def stop_backends():
    for backend_class_name in settings.BACKENDS:
        process.stop_actors_by_class(importing.get_class(backend_class_name))

def stop_core():
    process.stop_actors_by_class(Core)

    def on_stop(self):
        # if self.zeroconf_service:
        #     self.zeroconf_service.unpublish()

        process.stop_actors_by_class(session.DictatorSession)

def stop_audio():
    process.stop_actors_by_class(Audio)

 def stop_backends(self, backend_classes):
     logger.info('Stopping Mopidy backends')
     for backend_class in backend_classes:
         process.stop_actors_by_class(backend_class)

def stop_frontends():
    for frontend_class_name in settings.FRONTENDS:
        try:
            stop_actors_by_class(get_class(frontend_class_name))
        except OptionalDependencyError:
            pass

 def stop_frontends(self, frontend_classes):
     logger.info('Stopping Mopidy frontends')
     for frontend_class in frontend_classes:
         process.stop_actors_by_class(frontend_class)

 def stop_core(self):
     logger.info('Stopping Mopidy core')
     process.stop_actors_by_class(Core)

def stop_mixer():
    stop_actors_by_class(get_class(settings.MIXER))

def stop_gstreamer():
    stop_actors_by_class(GStreamer)

 def stop_backends(self, extensions):
     logger.info("Stopping Mopidy backends")
     for extension in extensions:
         for backend_class in extension.get_backend_classes():
             process.stop_actors_by_class(backend_class)

def stop_audio():
    stop_actors_by_class(Audio)

 def stop_audio(self):
     logger.info('Stopping Mopidy audio')
     process.stop_actors_by_class(Audio)

def stop_backend():
    stop_actors_by_class(get_class(settings.BACKENDS[0]))

 def stop_mixer(self, mixer_class):
     logger.info('Stopping Mopidy mixer')
     process.stop_actors_by_class(mixer_class)

 def on_stop(self):
     process.stop_actors_by_class(session.MpdSession)

def stop_frontends(extensions):
    logger.info('Stopping Mopidy frontends')
    for extension in extensions:
        for frontend_class in extension.get_frontend_classes():
            process.stop_actors_by_class(frontend_class)