add comment for example_index and unique_id in single process

transformers/data/processors/squad.py

@@ -225,7 +225,7 @@ def squad_convert_example_to_features(example, max_seq_length,
             span['token_type_ids'],
             cls_index,
             p_mask.tolist(),
-            example_index=0,
+            example_index=0, # Can not set unique_id and example_index here. They will be set after multiple processing.
             unique_id=0,
             paragraph_len=span['paragraph_len'],
             token_is_max_context=span["token_is_max_context"],

transformers/modeling_roberta.py

@@ -592,8 +592,8 @@ class RobertaForQuestionAnswering(BertPreTrainedModel):
         start_scores, end_scores = model(torch.tensor([input_ids]))
         all_tokens = tokenizer.convert_ids_to_tokens(input_ids)
         print(' '.join(all_tokens[torch.argmax(start_scores) : torch.argmax(end_scores)+1]))
-        # a nice puppet
-        # Note: 'roberta-large' model can not produce the right answer above. Waiting for 'roberta-large-finetuned-squad'
+        a nice puppet
+        Note: 'roberta-large' model can not produce the right answer above. Waiting for 'roberta-large-finetuned-squad'
         to be uploaded.
     """
     config_class = RobertaConfig