Hi, I'm new to GitHub and Google Colab, and have come across an issue which I have no idea how to fix. When running the generation cell in Colab it stops halfway with this problem

NameError Traceback (most recent call last)
in <cell line: 3>()
1 #@title Generate
2 device = torch.device("cuda")
----> 3 model.cuda()
4
5 #generated = torch.tensor(tokenizer.encode(prompt)).unsqueeze(0)

NameError: name 'model' is not defined

Any ideas on what I'm doing wrong? Thanks