Question on Using Interactable Unity Event Wrapper with MetaQuest3

Hello, I am developing a VR application using MetaQuest3. Is there a tutorial available to understand the behavior of the Interactable Unity Event Wrapper?

Specifically, I want to implement code that deletes the target object upon selection and records the number of deleted objects. However, I don't understand the mechanism of the Interactable Unity Event Wrapper well enough to implement this.