get custom class instance of collider hit by raycast?

I’m sure I’ve done this before, but I’m not remembering how…

I have a custom class, FooObject. Each FooObject instance has a GameObject and a BoxCollider. I’m casting a ray from one FooObject’s GameObject’s transfrom.position to see if any other FooObject’s BoxCollider is hit.

That’s all fine, but I can’t remember how to access the FooObject instance of the BoxCollider I hit with my Raycast.

I need something like:

if (hit.collider != null) {FooObject whichFoo = the FooObject that owns the collider we hit}

Any takers?
Thanks for your time…!

Should be:

// c#
// js