fix oss pyre (#2640)

Summary:
Pull Request resolved: #2640

tsia

Reviewed By: sarckk

Differential Revision: D67209515

fbshipit-source-id: 05158068db8ce32a94ee0be2bc4c3ece8f39bac8

Author: iamzainhuda

torchrec/distributed/train_pipeline/tests/test_train_pipelines.py

@@ -2257,6 +2257,7 @@ def setUp(self) -> None:
         torch.autograd.set_detect_anomaly(False)
         self._exit_stack = ExitStack()
         self._exit_stack.enter_context(
+            # type: ignore[attr-defined]
             torch._dynamo.config.patch(
                 optimize_ddp="python_reducer_without_compiled_forward"
             ),