--- description: Dive into Ultralytics detailed utility guide. Learn about Bboxes, _ntuple and more from Ultralytics utils.instance module. keywords: Ultralytics, Bboxes, _ntuple, utility, ultralytics utils.instance --- # Reference for `ultralytics/utils/instance.py` !!! Note This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/instance.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/instance.py). If you spot a problem please help fix it by [contributing](/help/contributing.md) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/utils/instance.py) 🛠️. Thank you 🙏!

## ::: ultralytics.utils.instance.Bboxes

## ::: ultralytics.utils.instance.Instances

## ::: ultralytics.utils.instance._ntuple