AttributeError: 'Voronoi' object has no attribute 'closest_point'

This error is usually encountered when you try to call the method closest_point on an object of the class Voronoi, but this method does not exist in this class.

To fix this error, you need to check the documentation of the Voronoi class to see if there is a method with a similar name or functionality that you can use instead. Alternatively, you may need to use a different class or package that has the closest_point method you need.