Are there any fastai utility functions to parse json files for labels from COCO?

I’m trying to train a U-Net segmentation models using MS-COCO.

The lesson 3 tutorial for camvid assumes that you already know what classes there are and how they map to the values in the PNG mask.

Are there any utility functions in fastai that can parse through the json files in MS-COCO to extract that information? I’m still learning about COCO, and I’m assuming that information is in the json file, as there is other files that I can tell in the annotations that could have that information.

Maybe you can use the labelme conversion tools: