This library is used to describe the 3 or 4 most important functions of the app to the user the first time they use it, as an onboarding measure.
The library can also be used as an update log if you have released a major update and want to inform the user which new things are now in the app.
It would be great if someone could wrap this library
While there is a similar library available, it has Holo UI design, which makes sense as it was developed during pre-Lollipop era. This one looks more current with its material design UI.