new_contents: import os
  import subprocess
  from argparse import ArgumentParser
  from typing import Any
  
  from django.conf import settings
  from django.core.management.base import CommandError
  
  from zerver.lib.management import ZulipBaseCommand
  from zerver.models import Message, UserProfile
  
  
  class Command(ZulipBaseCommand):
      help = """Script to permanently delete a realm. Recommended only for removing
  realms used for testing; consider using deactivate_realm instead."""
  
      def add_arguments(self, parser: ArgumentParser) -> None:
          self.add_realm_args(parser, True)
  
      def handle(self, *args: Any, **options: str) -> None:
          realm = self.get_realm(options)
          assert realm is not None  # Should be ensured by parser
  
          user_count = UserProfile.objects.filter(
              realm_id=realm.id,
              is_active=True,
              is_bot=False,
          ).count()
  
          message_count = Message.objects.filter(
              sender__realm=realm
          ).count()
  
          print(f"This realm has {user_count} users and {message_count} messages.\n")
  
          print("This command will \033[91mPERMANENTLY DELETE\033[0m all data for this realm.  "
                "Most use cases will be better served by scrub_realm and/or deactivate_realm.")
  
          confirmation = input("Type the name of the realm to confirm: ")
          if confirmation != realm.string_id:
              raise CommandError("Aborting!")
  
          # TODO: This approach leaks Recipient and Huddle objects,
          # because those don't have a foreign key to the Realm or any
          # other model it cascades to (Realm/Stream/UserProfile/etc.).
          realm.delete()
          subprocess.check_call([os.path.join(settings.DEPLOY_ROOT, "scripts", "setup", "flush-memcached")])
  
          print("Realm has been successfully permanently deleted.")
  
subject: Add command to completely remove realms.