new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('mailer', '0001_initial'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='mailnotifier',
              name='event',
              field=models.CharField(max_length=128, choices=[(b'account_created_from_request', b'account_created_from_request'), (b'account_request_received', b'account_request_received'), (b'allocation_created_from_request', b'allocation_created_from_request'), (b'allocation_expired', b'allocation_expired'), (b'allocation_expiring', b'allocation_expiring'), (b'allocation_request_created_by_user', b'allocation_request_created_by_user'), (b'project_created_by_user', b'project_created_by_user')]),
          ),
      ]
  
subject: Add db migration: expiration/expiring choices for mailer