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* Fix AttributeError: MixtralModel object has no attribute org_vocab_size.

* Make LoRA logic for Mistral and Mixtral the same

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Co-authored-by: Pernekhan Utemuratov <pernekhan@deepinfra.com>

Co-authored-by: Roy <jasonailu87@gmail.com>

* add mixtral lora support

* formatting

* fix incorrectly ported logic

* polish tests

* minor fixes and refactoring

* minor fixes

* formatting

* rename and remove redundant logic

* refactoring

* refactoring

* minor fix

* minor refactoring

* fix code smell

Co-authored-by: Roy <jasonailu87@gmail.com>

This reverts commit 5c976a7e.

Co-authored-by: Chunan Zeng <chunanzeng@Chunans-Air.attlocal.net>

Co-authored-by: Jiang Li <jiang1.li@intel.com>
Co-authored-by: Kunshang Ji <kunshang.ji@intel.com>

Co-authored-by: Pernekhan Utemuratov <pernekhan@deepinfra.com>

Co-authored-by: chen shen <scv119@gmail.com>

Co-authored-by: roy <jasonailu87@gmail.com>

Co-authored-by: zhaoyang <zhao.yang16@zte.com.cn>
Co-authored-by: Zhuohan Li <zhuohan123@gmail.com>

Co-authored-by: Zhuohan Li <zhuohan123@gmail.com>

Co-authored-by: Chen Shen <scv119@gmail.com>
Co-authored-by: Shreyas Krishnaswamy <shrekris@anyscale.com>
Co-authored-by: Avnish Narayan <avnish@anyscale.com>

Co-authored-by: DouHappy <2278958187@qq.com>
Co-authored-by: Zhuohan Li <zhuohan123@gmail.com>

* Align top_p and top_k with huggingface

* remove _get_prompt_and_output_tokens

* rename _apply_top_p_top_k

* compare top_p top_k with hf

* fix test errors