If I remember correctly, its a channel at a minimum that is required, with my latest update to the push notifications, there are already defaults set, so you don’t have to do anything special. I updated the docs with my changes too, so you can read on the available properties/features here: https://github.com/fuse-open/fuselibs/blob/1792c481f3b7b7758a03060910b50978c6d35929/Source/Fuse.PushNotifications/Docs/Guide.md
Unfortunately, my pull request hasn’t been reviewed and accepted into fuselibs yet, so its not available with latest fuse release.
How you can use my version is by pointing your project to use a downloaded version of fuselibs, then override the Fuse.PushNotifications folder in the src with mine. Note, after any changes to that fuselibs, you will need to run uno doctor in your project dir. Here’s a tut you can follow: Oct 2018 - How to update to latest Fuselibs and Uno
You would just need fuselibs from step 1, step 3, overriding Fuse.PushNotifications with mine and step 5.