new_contents: from django.core.management import call_command
  from django.db import migrations
  
  
  def update_new_tags(apps, schema_editor):
      call_command("update_new_tags")
  
  
  class Migration(migrations.Migration):
  
      dependencies = [("resources", "0073_stream_description_it")]
  
      operations = [migrations.RunPython(update_new_tags, migrations.RunPython.noop)]
  
subject: Add migration file