def METHOD_NAME(days=365):
    """
    Delete Signals in one of the Signalen system's closed states
    """
    SignalDeletionService.delete_signals(AFGEHANDELD, days, dry_run=False)
    SignalDeletionService().delete_signals(GEANNULEERD, days, dry_run=False)
    SignalDeletionService().delete_signals(GESPLITST, days, dry_run=False)