Custom data for undo/redo action?

I would like to add undo/redo support for custom actions that are undertaken when using my editor script. Here is some pseudo-code that hopefully describes what I am after:

 void SomeCustomAction() {
     CustomAction action = new CustomAction();
     action.Run();
 }

 public class CustomAction {
     int x;
     int y;

     public void Run() {
         OnRun();

         // Obviously incorrect:
         UnityEditor.Undo.RegisterCustomAction(this);
     }

     void OnRun() {
         // Do something with x and y
     }

     void OnUndo() {
        // Reverse process
     }

     void OnRedo() {
        // Un-reverse process
        OnRun();
     }
 }

Is it possible to register custom action data with callback(s) to handle each stage of undo/redo?