PEFT How to use YALCINKAYA/opsgenius-large with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("gpt2-large")
model = PeftModel.from_pretrained(base_model, "YALCINKAYA/opsgenius-large") 
