Apple Watch assistive touch API

I recently came across new Apple Watch assistive touch features, which can recognize hand clenching, finger pinching and more. Here's the official demo video.

Is there an API, which gives developers access to these new gestures? For example, to detect finger pinching or hand clenching?

I am also looking for API to detect hand clenching, finger pinching. Is there any API or property to detect ?

Thiss. Apple, watchOS assistive touch API please !

Apple Watch assistive touch API
 
 
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