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---
description: Learn about the Ultralytics BaseValidator module. Understand its principles, uses, and how it interacts with other components.
keywords: Ultralytics, BaseValidator, Ultralytics engine, module, components
---
# Reference for `ultralytics/engine/validator.py`
!!! Note
This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/engine/validator.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/engine/validator.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/engine/validator.py) 🛠. Thank you 🙏!
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## ::: ultralytics.engine.validator.BaseValidator
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