Homogeneize generation params (#428)
This PR does 3 things:
Provide an homogeneized API for people to use to provide model generation parameters in model configs. Those parameters are notably provided to all models which can take them (vllm, open ai, tgi, transformers, ...)
Renames BaseModel to TransformersModel
Also allows TransformersModels to use a transformers.GenerationConfig object directly, when created programmatically
I would put system_prompt, fewshot_seeds, and use_chat_template in the GenerationParameters too since they are generation parameters logically, but it can be another PR
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Co-authored-by: Nathan Habib <30601243+NathanHB@users.noreply.github.com>
Co-authored-by: Albert Villanova del Moral <8515462+albertvillanova@users.noreply.github.com>
