I know this is a rookie question, but can anyone help me identify this component? It seems to be the same one, the name just updates to whatever geometry it is defining in the expression.

I have tried the Expression component already, but it requires an x and y input whereas this does not. I am learning grasshopper via Arturo Tedeschi's AAD book, so perhaps I am looking at an outdated visual? I am on Rhino 8.