old_contents: from django.db import migrations
  
  
  def assign_access_key(apps, schema):
      vatlayer_configuration = (
          apps.get_model("plugins", "PluginConfiguration")
          .objects.filter(identifier="mirumee.taxes.vatlayer")
          .first()
      )
  
      if vatlayer_configuration:
          vatlayer_configuration.active = False
          vatlayer_configuration.save()
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ("plugins", "0003_auto_20200429_0142"),
      ]
  
      operations = [
          migrations.RunPython(assign_access_key),
      ]
  
new_contents: from django.db import migrations
  
  
  def deactivate_vatlayer(apps, schema):
      vatlayer_configuration = (
          apps.get_model("plugins", "PluginConfiguration")
          .objects.filter(identifier="mirumee.taxes.vatlayer")
          .first()
      )
  
      if vatlayer_configuration:
          vatlayer_configuration.active = False
          vatlayer_configuration.save()
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ("plugins", "0003_auto_20200429_0142"),
      ]
  
      operations = [
          migrations.RunPython(deactivate_vatlayer),
      ]
  
subject: Change migration name to more proper