  )
  from django.test.utils import CaptureQueriesContext, isolate_apps, register_lookup
  
  from .fields import CustomManyToManyField, InheritedManyToManyField, MediumBlobField
  from .models import (
      Author,
      AuthorCharFieldWithIndex,
 
</s> remove from django.test import TransactionTestCase, skipIfDBFeature, skipUnlessDBFeature
 </s> add from django.test import (
    TransactionTestCase,
    ignore_warnings,
    skipIfDBFeature,
    skipUnlessDBFeature,
) </s> remove from django.test import SimpleTestCase, override_settings
 </s> add from django.test import SimpleTestCase, ignore_warnings, override_settings
from django.utils.deprecation import RemovedInDjango51Warning
  )
  from django.test.utils import CaptureQueriesContext, isolate_apps, register_lookup
from django.utils.deprecation import RemovedInDjango51Warning
  
  from .fields import CustomManyToManyField, InheritedManyToManyField, MediumBlobField
  from .models import (
      Author,
      AuthorCharFieldWithIndex,
keep add keep keep keep keep keep
 Fixed #27236 -- Deprecated Meta.index_together in favor of Meta.indexes.

This also deprecates AlterIndexTogether migration operation. 
tests/schema/tests.py