PEFT How to use rrchat/Cerberus-E4B with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("google/gemma-4-E4B-it")
model = PeftModel.from_pretrained(base_model, "rrchat/Cerberus-E4B") 
