Force the return of token type IDs (#3439)

examples/utils_multiple_choice.py

@@ -320,7 +320,9 @@ def convert_examples_to_features(
             else:
                 text_b = example.question + " " + ending
 
-            inputs = tokenizer.encode_plus(text_a, text_b, add_special_tokens=True, max_length=max_length,)
+            inputs = tokenizer.encode_plus(
+                text_a, text_b, add_special_tokens=True, max_length=max_length, return_token_type_ids=True
+            )
             if "num_truncated_tokens" in inputs and inputs["num_truncated_tokens"] > 0:
                 logger.info(
                     "Attention! you are cropping tokens (swag task is ok). "

src/transformers/data/processors/squad.py

@@ -139,6 +139,7 @@ def squad_convert_example_to_features(example, max_seq_length, doc_stride, max_q
             pad_to_max_length=True,
             stride=max_seq_length - doc_stride - len(truncated_query) - sequence_pair_added_tokens,
             truncation_strategy="only_second" if tokenizer.padding_side == "right" else "only_first",
+            return_token_type_ids=True,
         )
 
         paragraph_len = min(