transformers

4bc723f8 - Generate: use `GenerationConfig` as the basis for `.generate()` parametrization (#20388)

Generate: use `GenerationConfig` as the basis for `.generate()` parametrization (#20388) * generate from config mvp * fix failing tests * max_time test * Load default gen config at model load time; Update docs * further documentation; add tests * adapt rag to the new structure * handle models not instantiated with from_pretained (like in tests) * better default generation config * add can_generate fn * handle legacy use case of ad hoc model config changes * initialize gen config from config in individual methods, if gen config is none * fix _get_decoder_start_token_id when called outside GenerationMixin * correct model config load order (set attr > model config > decoder config) * update rag to match latest changes * Apply suggestions from code review Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com> Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> * load gen config from model config in model.from_pretrained * fix can_generate fn * handle generate calls without a previous from_pretrained (e.g. tests) * add legacy behavior (and a warning) * lower logger severity Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com> Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>