PEFT How to use mtzig/v3_mistral_balance1_lora with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("peiyi9979/math-shepherd-mistral-7b-prm")
model = PeftModel.from_pretrained(base_model, "mtzig/v3_mistral_balance1_lora") 
