transformers

87c9d8a1 - Add type hints to Blip2QFormer, BigBirdForQA and ConditionalDetr family models (#25488)

Add type hints to Blip2QFormer, BigBirdForQA and ConditionalDetr family models (#25488) * Add missing type hints to `BigBirdForQuestionAnswering` * Add type hints to `Blip2QFormerModel` * Add type hints for `ConditionalDetr` family