transformers

e6767642 - Override build_inputs_with_special_tokens for fast tokenizers (#2912)

Override build_inputs_with_special_tokens for fast tokenizers (#2912) * Override build_inputs_with_special_tokens for fast impl + unittest. Signed-off-by: Morgan Funtowicz <morgan@huggingface.co> * Quality + format. Signed-off-by: Morgan Funtowicz <morgan@huggingface.co>