anchor.diff:      let EventsClass =
           Class "Microsoft.Maps.Events"
           |=> Events
  -        |+> [
  +        |+> Static [
                   "addHandler" => Entity * KeyEvent * (KeyEventArgs ^-> T<unit>) ^-> EventHandler
                   |> WithComment "Attaches the handler for the event that is thrown by the target."
   
  
positive.code:         let RouteClass =
              Class "Microsoft.Maps.Directions.Route"
              |=> Route
              |+> Protocol
                  [
                      "routeLegs" =? Type.ArrayOf RouteLeg
                  ]
  
negative.code:     let ItineraryDetailClass =
          Class "Microsoft.Maps.ItineraryDetail"
          |=> ItineraryDetail
          |+> Instance
              [
                  "compassDegrees" =? T<string>
                  |> WithComment "The direction in degrees. Note: This value is not supported for the Transit travel mode."
  