How does \Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\Categories work?

Preliminary reading: How does a backend product form define the data to be passed to its UI component on the client (JavaScript) side?

Declaration

Usage

Implementation

https://github.com/magento/magento2/blob/e0ed4bad/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/Categories.php#L85-L88

See also: