fix import

Author: xadupre

onnx_diagnostic/ext_test_case.py

@@ -1081,7 +1081,7 @@ def assert_onnx_disc(
             :class:`onnx_diagnostic.helpers.ort_session.InferenceSessionForTorch`
         """
         from .helpers import string_type, string_diff, max_diff
-        from .rt_helper import make_feeds
+        from .helpers.rt_helper import make_feeds
         from .helpers.ort_session import InferenceSessionForTorch
 
         kws = dict(with_shape=True, with_min_max=verbose > 1)