How to use s.products for classifying multi products on single page?
I have some pages with multi products on them. I want to use s.products using the data layer as mentioned at the end of the documentation https://experienceleague.adobe.com/docs/analytics/implementation/vars/page-vars/products.html?lang=en
Right now I am using a variable called line instead of s.products in the custom code and storing the values.

This custom code I have used to create a data element and mapped it to eVar in a DOM-ready rule to trigger this eVar for each page load.
But I want to classify my products now and want to use products variable. How can I utilize s.products here?
When trying to replace the variable line (in the above screenshot) with s.products, I am getting an error in the developer console log: Uncaught ReferenceError: s is not defined

I want to understand how in the debugger I will see the product variable? How the reporting will look like?
