new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import models, migrations
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('official_documents', '0003_add_group'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='officialdocument',
              name='document_type',
              field=models.CharField(max_length=100, choices=[(b'Nomination paper', b'Nomination paper')]),
              preserve_default=True,
          ),
      ]
  
subject: Add a migration that Django detects as a change