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setters getters (e.g. setX, getX) detection is broken?

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I used the auto-detection of getters and setters to tween certain numbers, which I got the idea to do from this forum post 



However, this no longer seems to work in GSAP 3. Any ideas?

Broken in GSAP 3:


Working in GSAP2:

See the Pen jOORZbM by karldougie (@karldougie) on CodePen

See the Pen vYYMdEb by karldougie (@karldougie) on CodePen

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Yep, here's another option (same general idea): 

See the Pen 64913f1ea7154fe340abf33e7e3861e5?editors=0010 by GreenSock (@GreenSock) on CodePen


The whole thing about methods that start with the word "get" or "set" seemed kinda old-school and I didn't think it was worthy of taking up kb in GSAP 3 since you could so easily accomplish it in other ways. Sorry if any of that was confusing. 

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@GreenSock I think it is great to move towards standard javascript syntax, and I'm really happy with the reduced size of GSAP! 

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