old_contents: # -*- coding: utf-8 -*-
  # Generated by Django 1.11.20 on 2019-03-22 01:34
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      initial = True
  
      dependencies = [
      ]
  
      operations = [
          migrations.CreateModel(
              name='ScheduledReportsCheckpoint',
              fields=[
                  ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                  ('start_datetime', models.DateTimeField()),
                  ('end_datetime', models.DateTimeField(db_index=True)),
              ],
          ),
      ]
  
new_contents: # -*- coding: utf-8 -*-
  # Generated by Django 1.11.20 on 2019-03-22 01:34
  from __future__ import unicode_literals
  from __future__ import absolute_import
  from __future__ import print_function
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      initial = True
  
      dependencies = [
      ]
  
      operations = [
          migrations.CreateModel(
              name='ScheduledReportsCheckpoint',
              fields=[
                  ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                  ('start_datetime', models.DateTimeField()),
                  ('end_datetime', models.DateTimeField(db_index=True)),
              ],
          ),
      ]
  
subject: Fix stickler error