new_contents: from django.core.management.base import BaseCommand
  
  from document.models import Document, Kamerstuk
  import scraper.documents
  
  
  class Command(BaseCommand):
  
      def add_arguments(self, parser):
          parser.add_argument('dossier_id', nargs='+', type=int)
  
      def handle(self, *args, **options):
          # dossier_id = 33885
          dossier_id = options['dossier_id'][0]
          dossier_docs = Document.objects.filter(dossier_id=dossier_id)
          for doc in dossier_docs:
              doc.delete()
  
subject: Create command to delete documents of a given dossier