I’m getting a `no valid constructor` Java serializ...

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[Ian]

I’m getting a no valid constructor Java serialization exception for this class:

class WaypointIndex<ItemType : Any>(
        val distance: (Two<ItemType>) -> Double,
        val waypoints: List<Waypoint<ItemType>>,
        val lookAhead: Int = 100,
        val vectorLookAhead: Int = lookAhead * 10
) { ... }

What kind of constructor do I need to give it for it to work?