In my receipt I am populating some analytics data and need to access what is in the fc_json as products[0.options.type - I have tried to do items.options.type in twig but it's empty. How can I access this? And is there a list of all twig vars somewhere? I would love access to things like shipping cost, etc that don't require stripping currency symbols and commas. It looks like the fc_json object only contains minimal info unfortunately.