              migrations.AlterUniqueTogether("Foo", [["a", "c"]]),
          )
  
      def test_alter_alter_index_model(self):
          self._test_alter_alter_model(
              migrations.AlterIndexTogether("Foo", [["a", "b"]]),
              migrations.AlterIndexTogether("Foo", [["a", "c"]]),
 
</s>
    # RemovedInDjango51Warning.
              migrations.AlterUniqueTogether("Foo", [["a", "c"]]),
          )
  
    # RemovedInDjango51Warning.
      def test_alter_alter_index_model(self):
          self._test_alter_alter_model(
              migrations.AlterIndexTogether("Foo", [["a", "b"]]),
              migrations.AlterIndexTogether("Foo", [["a", "c"]]),
keep keep add keep keep keep keep
 Fixed #27236 -- Deprecated Meta.index_together in favor of Meta.indexes.

This also deprecates AlterIndexTogether migration operation.
tests/migrations/test_optimizer.py