Determine bundles in cart..

Hello All,

I am new to Episerver and I am looking for a way to determine if I have a bundle(s) in the cart.

In our solution the customer can add multiple products/Lineitems to the cart. I am looking for at way to determine the bundles I have in the cart based on the lineitems.

If it makes sense to you? Could you please push me in the right direction?

I have been looking at this:

http://world.episerver.com/documentation/items/developers-guide/episerver-commerce/75/content/bundles-and-packages/

BR