runtime error

Traceback (most recent call last): File "/home/user/app/app.py", line 50, in <module> t2t_pipe, t2t_model, t2t_token = llm_model_load_pipe(model_id="HuggingFaceH4/zephyr-7b-beta", quant=True) File "/home/user/app/app.py", line 28, in llm_model_load_pipe model = transformers.AutoModelForCausalLM.from_pretrained( File "/usr/local/lib/python3.10/site-packages/transformers/models/auto/auto_factory.py", line 563, in from_pretrained return model_class.from_pretrained( File "/usr/local/lib/python3.10/site-packages/transformers/modeling_utils.py", line 3165, in from_pretrained hf_*********.validate_environment( File "/usr/local/lib/python3.10/site-packages/transformers/quantizers/quantizer_bnb_4bit.py", line 62, in validate_environment raise ImportError( ImportError: Using `bitsandbytes` 8-bit quantization requires Accelerate: `pip install accelerate` and the latest version of bitsandbytes: `pip install -i https://pypi.org/simple/ bitsandbytes`

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