PEFT How to use DuoNeural/qwen7b-json-sft with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen2.5-7B-Instruct")
model = PeftModel.from_pretrained(base_model, "DuoNeural/qwen7b-json-sft") 
