code: def handle(self, *args, **options):
  		
  		for subscriber in get_subscriber_model().objects.filter(djstripe_customers=None):
  			# use get_or_create in case of race conditions on large subscriber bases
  			Customer.get_or_create(subscriber=subscriber)
  			print("Created subscriber for {0}".format(subscriber.email))
docs: Create Customer objects for Subscribers without Customer objects associated.