new_contents: # -*- coding: utf-8 -*-
  from django.conf import settings
  from django.utils import timezone
  
  DATAPURGE_GRACEFULLY = getattr(settings, "DATAPURGE_GRACEFULLY", False)
  DATAPURGE_GRACE_STEP = getattr(settings, "DATAPURGE_GRACE_STEP", 100)
  DATAPURGE_GRACE_WAIT = getattr(settings, "DATAPURGE_GRACE_WAIT", timezone.timedelta(seconds=0.3))
  
  DATAPURGE_MODELS = getattr(settings, "DATAPURGE_MODELS", ())
subject: add base datapurge settings