add
fun addUpcomingManeuverArrow(routeProgress: RouteProgress): Expected<InvalidPointError, UpdateManeuverArrowValue>
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Calculates a maneuver arrow based on the route progress and returns a state that can be used to render the arrow on the map.
Return
the Expected<InvalidPointError, UpdateManeuverArrowValue> for rendering by the view.
Parameters
routeProgress
a RouteProgress generated by the core navigation system.