PEFT How to use ndavidson/phi-3.1-alpaca with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("microsoft/Phi-3-mini-4k-instruct")
model = PeftModel.from_pretrained(base_model, "ndavidson/phi-3.1-alpaca") 
