Yes, something like that, although those corners are regularly rounded corners, i.e. a simple arc radius at each corner with straight lines joining them.
A conic-corner is more like the curved corners of a CRT-type TV screen.
(The value of having a conic corner, for example on the base of your file, is that it should be possible—easily or at all—to loft it with a circle at the top.)
I have done a quick search already and cannot see that Grasshopper can do conic-corners. If it cannot, I will fall back on something like the definition you’ve shown.
@Joseph_Oster common, cut him some slack – the question (his first) was reasonable and friendly,
also the linked discussion is about constructing “conic” cubes by hand in rhino, not 2d curves in grasshopper,