How to get graded pokemon card prices from csv or api

I am a little confused about what data is available through the csv download and the api as well.

When i download the pokemon csv price file, i get the following data:
id,console-name,product-name,loose-price

But when i read your documentation, it should return the same data as the api does, but i don't see the graded prices for each card?

Is it intended that this info is not included, and am i reading the documentation wrong?
If it is in fact not intended to get this info from the csv file, is it possible to get it via the api?

I just did a test with the example from your documentation, and it seems that api request does not return any price at all, not even the loose price?

Here is the test i did:
https://www.pricecharting.com/api/product?t=c0b53bce27c1bdab90b1605249e600dc43dfd1d5&id=2771297

which only returns this:

{"console-name": "Pokemon Fusion Strike","id": "2771297","product-name": "Gengar VMAX #271","status": "success"}

I hope you can help me get some clarification in this regard!

Have a great day.