celery.apps.beat
It does everything necessary to run that module as an actual application, like installing signal handlers and so on.
class celery.apps.beat.Beat(max_interval=None, app=None, socket_timeout=30, pidfile=None, no_color=None, loglevel=None, logfile=None, schedule=None, scheduler_cls=None, redirect_stdouts=None, redirect_stdouts_level=None, \*kwargs*)