Tf model outputs (#6247)

* TF outputs and test on BERT

* Albert to DistilBert

* All remaining TF models except T5

* Documentation

* One file forgotten

* TF outputs and test on BERT

* Albert to DistilBert

* All remaining TF models except T5

* Documentation

* One file forgotten

* Add new models and fix issues

* Quality improvements

* Add T5

* A bit of cleanup

* Fix for slow tests

* Style

tests/test_modeling_tf_xlm_roberta.py

@@ -36,7 +36,7 @@ class TFFlaubertModelIntegrationTest(unittest.TestCase):
             "attention_mask": tf.convert_to_tensor([[1, 1, 1, 1, 1, 1]], dtype=tf.int32),
         }
 
-        output = model(features)[0]
+        output = model(features)["last_hidden_state"]
         expected_shape = tf.TensorShape((1, 6, 768))
         self.assertEqual(output.shape, expected_shape)
         # compare the actual values for a slice.