Added Annotations for PyTorch models (#16619)
* Update modeling_mpnet.py
* Update modeling_ctrl.py
* formatting
* Formatting
* Formatting
* annotated FSMT
* Added annotations for LED
* Added Annotations for M2M
* Added annotations for nystromformer
* Added annotations for OpenAI
* Added annotations for RAG
* Removed unused imports
* fix isort errors
* Removed inputs_embeds docstring, corrected original
* flake8 fixes
* doc-builder fixes