Device handler for notion sensor: getnotion.com

I got these https://getnotion.com/products/notion-starter-kit for free . I have big smart-things eco system. These sensor seems to be zigbee, but looks proprietary, Any one know of any device handler for these sensors in smartthings.?
https://notion.zendesk.com/hc/en-us/articles/206964417-How-Do-The-Notion-Sensors-And-Bridges-Communicate-With-Each-Other-

It’s in the same frequency band as Zigbee, but so are a lot of things: Bluetooth, Wi-Fi, thread, 6LoWPAN, SNAP, and more. There’s nothing to indicate that it can communicate with smartthings.

It does have an IFTTT channel, as well as some Alexa integration, so one of those might be a path for partial integration.