Customize Widget

Hi!

How can we customize a geodirectory widget, on a child theme?

We are using a child theme from Whoop. Now, we want to customize the geodirectory_bestof_widget.php, avoiding changing it in the core folder of Geodirectory (to avoid loosing the changes in the next update).

The thing is, where can we put the child file?

We have already for templates like here:

https://wpgeodirectory.com/docs/customizing-geodirectory-templates/

But about the widgets, how can we do it?

Thanks!