add fast support and option (#22724)
* add fast support and option
* update based on review
* Apply suggestions from code review
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
* Update src/transformers/models/llama/convert_llama_weights_to_hf.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
* nit
* add print
* fixup
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Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
