Is it possible to change the visibility of all objects in a model, regardless of the model???

The title is a bit vague so I'll go into a bit more detail.

So I'm looking to have REPLACEABLE models named "one" and "two," and using the name "one" or the name "two" I want to change whether all the parts in the model are visible. Is this possible? I could technically just use viewport frames but I would definitely prefer it this way.

I have NOT experimented because I couldn't find any info on the subject, so sadly I do not have any lines of code... please explain any code you send!