llama2_7b_nf4_adapter/bnb_config.json

{
    "load_in_4bit": true,
    "bnb_4bit_quant_type" : "nf4",
    "bnb_4bit_use_double_quant" : false,
    "bnb_4bit_compute_dtype" : "bfloat16"
}