How to draw a route having GeoPoint and using OSMRoadManager with osmdroid in a fragment kotlin?

Question

I have issues when I want to draw paths. Following the tutorial just in the first line it asks me to do

RoadManager roadManager = new OSRMRoadManager(this, MY_USER_AGENT);

I have tried to convert all in Kotlin version so

val roadManager = OSRMRoadManager(requireContext(), ...)

but i don't know what I have to type in order to replace "MY_USER_AGENT"

I have tried

val roadManager = OSRMRoadManager(requireContext(), requireContext().packageName)

and

val roadManager = OSRMRoadManager(requireContext(), BuildConfig.APPLICATION_ID)

but in both cases the application crashes