Week 2 lab error at this stage

I have an error at this stage:
instruct_model = AutoModelForSeq2SeqLM.from_pretrained(“./flan-dialogue-summary-checkpoint”, torch_dtype=torch.bfloat16)


NameError Traceback (most recent call last)
Cell In[5], line 1
----> 1 instruct_model = AutoModelForSeq2SeqLM.from_pretrained(“./flan-dialogue-summary-checkpoint”, torch_dtype=torch.bfloat16)

NameError: name ‘AutoModelForSeq2SeqLM’ is not defined

how do you get into week2 lab? I can’t even start lab