Question about ‘labels’

[SatireY]

Hi, thanks for your great work!
I'm using the code in the llama-recipes repository to fine-tune my own data and have a question for you: I read the examples/quickstart.ipynb code, I found that when preparing data, not only need to [input_ids, attention_mask] two columns of data, also need to 'labels' column data, I would like to know what role the ‘labels’ column data? Can I provide only [input_ids, attention_mask] two columns for training?
Looking forward to your reply!