transformers

4309abed - Add speecht5 batch generation and fix wrong attention mask when padding (#25943)

Add speecht5 batch generation and fix wrong attention mask when padding (#25943) * fix speecht5 wrong attention mask when padding * enable batch generation and add parameter attention_mask * fix doc * fix format * batch postnet inputs, return batched lengths, and consistent to old api * fix format * fix format * fix the format * fix doc-builder error * add test, cross attention and docstring * optimize code based on reviews * docbuild * refine * not skip slow test * add consistent dropout for batching * loose atol * add another test regarding to the consistency of vocoder * fix format * refactor * add return_concrete_lengths as parameter for consistency w/wo batching * fix review issues * fix cross_attention issue