Transformers How to use google/t5-efficient-base-kv256 with Transformers:
# pip install -U transformers accelerate
# Load model directly
from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
tokenizer = AutoTokenizer.from_pretrained("google/t5-efficient-base-kv256")
model = AutoModelForSeq2SeqLM.from_pretrained("google/t5-efficient-base-kv256", device_map="auto") 
