new_contents: # Generated by Django 2.2.16 on 2020-09-15 15:27
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('councilmatic_core', '0051_bill_last_action_date'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='bill',
              name='last_action_date',
              field=models.DateField(blank=True, null=True),
          ),
      ]
  
subject: Add migration for last_action_date field change