NavigationRoute 
    Wraps a route object used across the Navigation SDK features.
Parameters
directionsResponse 
the original response that returned this route object.
routeIndex 
the index of the route that this wrapper tracks from the collection of routes returned in the original response.
routeOptions 
options used to generate the directionsResponse
Types
Functions
Properties
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                DirectionsRoute that this NavigationRoute represents.
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                Returns a list of UpcomingRoadObject present in a route.
Extensions
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                Returns all violated exclusions for this route.
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                This function checks whether the NavigationRoute has unexpected closures, which could be a reason to re-route.