Similar set of variables between classes...

So there was this topic I started learning about months ago and I forgot what it’s called.

It’s the idea that a class can have a set of specific variables, and other classes can use that set as well even if they don’t inherit from that class, and it worked like some kind of module of sorts. Anyone know what it’s called?

or the dreaded STATIC. Depending on how fancy you were thinking, could be Namespace as well.

Figured it out! It was interfaces.