Stepper increment

[Tararan]

Does Stepper have onIncrement and onDecrement or something similar?
Is there any way I can easily find out if user trying to increase or decrease the number?

I can't find it in docs or code example.
And .ts file does not seem to have that prop at all.

https://github.com/wix/react-native-ui-lib/blob/master/demo/src/screens/componentScreens/StepperScreen.tsx
https://wix.github.io/react-native-ui-lib/docs/components/form/Stepper