 // must coexist, so it was renamed. The old name must not be used in the
 // new runtime.
 @objc private class __KVOKeyPathBridgeMachinery : NSObject {
-    @nonobjc static var keyPathTable: [String : AnyKeyPath] = {
+    @nonobjc static var swizzler: ()? = {
         /*
          Move all our methods into place. We want the following:
          __KVOKeyPathBridgeMachinery's automaticallyNotifiesObserversForKey:, and keyPathsForValuesAffectingValueForKey: methods replaces NSObject's versions of them

}

func _bridgeKeyPathToString(_ keyPath:AnyKeyPath) -> String {
    return __KVOKeyPathBridgeMachinery._bridgeKeyPath(keyPath)
}

// NOTE: older overlays called this NSKeyValueObservation. We now use

        threeWaySwizzle(#selector(NSObject.keyPathsForValuesAffectingValue(forKey:)), with: #selector(NSObject.__old_unswizzled_keyPathsForValuesAffectingValue(forKey:)))
        threeWaySwizzle(#selector(NSObject.automaticallyNotifiesObservers(forKey:)), with: #selector(NSObject.__old_unswizzled_automaticallyNotifiesObservers(forKey:)))
        
        return nil
    }()
    
    /// Performs a 3-way swizzle between `NSObject` and `__KVOKeyPathBridgeMachinery`.
