u/okproductdesign

https://preview.redd.it/fvlo2e4omjih1.png?width=404&format=png&auto=webp&s=e72b8850550f75410c177a6211f4d5de82a65b77

https://preview.redd.it/wvso2vmpmjih1.png?width=503&format=png&auto=webp&s=ea99134b916ec25a97cb1f77e44823a3bb3dfc8f

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 I am learning grasshopper via Arturo Tedeschi's AAD book, so perhaps I am looking at an outdated visual?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.