Basic example of filtering in custom visual with apiVersion 2.6.0

Hi,

I currently have a custom visual that highlights/filters other visuals using:

selectionManager.select(identity)

and I would like to replace/extend this functionality to filtering other visuals, i.e. apply a persistent filter vs just selecting, but I can find only very little information on how to do this. All basic examples I can find are using the old apiVersion.

Info from the Microsoft reference page: https://docs.microsoft.com/en-us/power-bi/developer/visuals/filter-api

I have the following questions:

1. What are the necessary steps to change the 'selection' functionality into filtering?
2. Will it work on a categorical dataset, or do I need to add a table to the dataViewMappings in capabilities.json?
3. Is there a basic example (on e.g. github) that uses filtering using apiVersion 2.6.0 or later?

Thank you,

Martijn