fix issues

Author: xadupre

_unittests/ut_tasks/test_tasks.py

@@ -1,6 +1,11 @@
 import unittest
 import torch
-from onnx_diagnostic.ext_test_case import ExtTestCase, hide_stdout, has_transformers
+from onnx_diagnostic.ext_test_case import (
+    ExtTestCase,
+    hide_stdout,
+    has_transformers,
+    requires_transformers,
+)
 from onnx_diagnostic.torch_models.hghub.model_inputs import get_untrained_model_with_inputs
 from onnx_diagnostic.torch_export_patches import torch_export_patches
 from onnx_diagnostic.torch_export_patches.patch_inputs import use_dyn_not_str
@@ -150,6 +155,7 @@ def test_feature_extraction_tiny_bart(self):
                 model, (), kwargs=inputs, dynamic_shapes=use_dyn_not_str(ds), strict=False
             )
 
+    @requires_transformers("4.51.999")
     @hide_stdout()
     def test_summarization(self):
         mid = "facebook/bart-large-cnn"