PEFT How to use andstor/bigcode-starcoderbase-unit-test-ia3 with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("bigcode/starcoderbase")
model = PeftModel.from_pretrained(base_model, "andstor/bigcode-starcoderbase-unit-test-ia3") 
