new_contents: # -*- coding: utf-8 -*-
  # Generated by Django 1.11.12 on 2018-04-16 09:39
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  import django.db.models.deletion
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('lowfat', '0130_auto_20180413_1459'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='historicalclaimant',
              name='mentor',
              field=models.ForeignKey(blank=True, db_constraint=False, null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='+', to='lowfat.Claimant'),
          ),
      ]
  
subject: Add migration file