get Routes
fun getRoutes(origin: Feature, destination: Feature, skiLevel: Level, callback: CompletionCallback<List<Route>>)
Retrieves the routes for the specified origin, destination, and ski level asynchronously.
Parameters
origin
The origin feature of the routes.
destination
The destination feature of the routes.
ski Level
The ski level for the routes.
callback
The callback to handle the routes result or error.