PEFT How to use interneuronai/az-orca-mini with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("psmathur/orca_mini_13b")
model = PeftModel.from_pretrained(base_model, "interneuronai/az-orca-mini") 
