transformers

aeae9782 - Add missing information on token_type_ids for roberta model (#19766)

Add missing information on token_type_ids for roberta model (#19766) * Add missing information on token_type_ids for roberta model * Fix code format issues * Fix code format issues * Add more explicit document for token_type_ids for roberta * Fix flake8 issues * Fix flake8 issues * Fix flake8 issues * Fix flake8 issues * Fix flake8 issues