How to retrieve information from shopping cart?

I’ve been going over the Corvid References on “OrderTotals” here, https://www.wix.com/corvid/reference/wix-stores-backend.html#OrderTotals , but I’m a bit new to Corvid and can’t seem to figure out exactly how to get the values I want.

For the moment, I’m simply trying to get value of the Shipping Cost so I can then display it in a text element. I’ve tried entering the exact code from the link above, as well as trying to add the different types in the code that the page describes. But I feel I am just missing the basics, and can’t find any examples of what I’m trying to do online.

It seems simple enough, but I am having a hard time figuring out how get the code to read/get the cost. Any help would be greatly appreciated!