New serving (#9419)

* Add a serving method

* Add albert

* Add serving for BERT and BART

* Add more models

* Finish the serving addition

* Temp fix

* Restore DPR

* Fix funnel attribute

* Fix attributes GPT2

* Fix OpenAIGPT attribute

* Fix T5 attributes

* Fix Bart attributes

* Fix TransfoXL attributes

* Add versioning

* better test

* Update template

* Fix Flaubert

* Fix T5

* Apply style

* Remove unused imports

* Deactivate extra parameters

* Remove too long test + saved_model default to False

* Ignore the saved model test for some models

* Fix some inputs

* Fix mpnet serving

* Trigger CI

* Address all comments

tests/test_modeling_tf_pegasus.py

@@ -109,6 +109,10 @@ class TestTFPegasusCommon(TFModelTesterMixin, unittest.TestCase):
             name = model.get_prefix_bias_name()
             assert name is None
 
+    def test_saved_model_creation(self):
+        # This test is too long (>30sec) and makes fail the CI
+        pass
+
 
 @is_pt_tf_cross_test
 @require_sentencepiece