PEFT How to use neuralnetworker/flan-T5-base with PEFT:
from peft import PeftModel
from transformers import AutoModelForSeq2SeqLM
base_model = AutoModelForSeq2SeqLM.from_pretrained("google/flan-t5-base")
model = PeftModel.from_pretrained(base_model, "neuralnetworker/flan-T5-base")