Sentence as an item feature

I am trying to add description as a feature in my project. I knew that it accepts tags as a feature and will create an embeddings based on that tag.
I don't have tags here but i have description of particular item. can you suggest me something like how can i feed description as a feature to lightm.dataset.

No file, test, or implementation entry point is named; the issue only asks how to feed an item's description into lightm.dataset as a feature. First clarify the intended text-to-feature behavior and acceptance criteria, since the issue does not define what completion or validation would look like.

Written by the indexing model from the issue text.