new_contents: # Generated by Django 2.2.10 on 2020-03-01 14:13
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('devices', '0009_rm_read_perm'),
      ]
  
      operations = [
          migrations.AlterModelOptions(
              name='building',
              options={'ordering': ['name'], 'verbose_name': 'Building', 'verbose_name_plural': 'Buildings'},
          ),
          migrations.AlterModelOptions(
              name='manufacturer',
              options={'ordering': ['name'], 'verbose_name': 'Manufacturer', 'verbose_name_plural': 'Manufacturers'},
          ),
          migrations.AlterModelOptions(
              name='room',
              options={'ordering': ['name'], 'verbose_name': 'Room', 'verbose_name_plural': 'Rooms'},
          ),
          migrations.AddField(
              model_name='device',
              name='data_provider',
              field=models.CharField(blank=True, max_length=20),
          ),
      ]
  
subject: Add missing migration