Refactoring created mismatched function calls

[JulienVig]

After this commit changed the method isBuilt() to be the getter get built(), the front end was raising the error datasetBuilder.isBuilt() is not a function.

I changed the getter call from datasetBuilder.isBuilt() to datasetBuilder.built (getters are called without parentheses

Same thing for get size()

[EduardDurech]

I'm just testing Codium for Doc creation, let me know if the bots responses were accurate above

[martinjaggi]

fixes issue #607

[JulienVig]

I'm just testing Codium for Doc creation, let me know if the bots responses were accurate above

The doc is accurate but IMO it doesn't add much, it's a very literal description of the "if/else"'s and probably doesn't help someone with the basic programming skills to better understand what's happening. It's better than nothing but I would prefer a higher-level description that addresses potential confusions and design choices (and potentially human if need be).

[martinjaggi]

want to mark it as ready to review, and merge?

(if possible i would avoid big restructurings on the docs side for now and aim for the minimal changes needed to get things working again, and to clarify some things in the markdown docs if it helps new users getting started?)

[JulienVig]

Yes, so far I've only been updating markdown files and fixing typos in the code as I see them

[JulienVig]

@EduardDurech is busy this week, @martinjaggi do you have time to review it?

[EduardDurech]

Small commit so able to check