ultralytics/docs/en/reference/utils/callbacks/raytune.md

description	keywords
Discover the functionality of the on_fit_epoch_end callback in the Ultralytics YOLO framework. Learn how to end an epoch in your deep learning projects.	Ultralytics, YOLO, on_fit_epoch_end, callbacks, documentation, deep learning, YOLO framework

Reference for ultralytics/utils/callbacks/raytune.py

!!! Note

This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/raytune.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/raytune.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/utils/callbacks/raytune.py) 🛠️. Thank you 🙏!

::: ultralytics.utils.callbacks.raytune.on_fit_epoch_end