Question about the data labels `y` in unsupervised learning

Hi,

I am trying to run your framework on my own unlabeled dataset.
However, as I looked into your code of the **unsupervised** section, I see in your `get_embedding()` function implemented in the encoder, you use `data.y` where `y` is the dataset label, which I don't understand. How could the dataset of unsupervised learning be externally labeled?

Thanks!