how to run rec_builder.py in recognition?

I was trying to convert my images data into train.rec file, but there is issue with labels. I have a folder of images and now i don't know what is labels exactly to pack the images into the train.rec file. I also have no clue how to run the rec_builder.py file of recognition.

Start by locating rec_builder.py in the recognition tooling and read how it expects image folders and labels. Check the repository's recognition documentation or nearby examples for the command used to create train.rec. Done means documenting the label format and a reproducible way to run rec_builder.py with a folder of images.

Written by the indexing model from the issue text.