transformers

494470d6 - Document how to handle non-persistent buffer initialization in custom models (#49880)

Document how to handle non-persistent buffer initialization in custom models (#49880) * docs: warn about non-persistent buffer initialization * fmt * iter * Update docs/source/en/add_new_model.md Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com> --------- Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>