How To Register Undo multiple steps (Editor)

I have this function in an Editor class that is meant to grab the selected objects in the Inspector and then parent them to a new GameObject.

I basically want to know how to register the entire operation for Undo. I'm getting complications around the instantiation, and parenting, and what not.

Here's the code:

 static void AddParent()
     {
 
         Transform[] transforms = Selection.GetTransforms(SelectionMode.TopLevel |
             SelectionMode.OnlyUserModifiable);
 
         string name;
 
         if (Selection.activeGameObject)
             name = Selection.activeGameObject.name;
         else
             name = "GameObject";
         
         GameObject newParent = new GameObject(name);
 
         if (transforms == null || transforms.Length == 0)
         {
             Selection.activeGameObject = newParent;
             return;
         }
 
         Transform originalParent = transforms [0].parent;
 
         if (originalParent)
             newParent.transform.SetParent(originalParent, false);
 
         foreach (Transform transform in transforms)
         {
             transform.parent = newParent.transform;
         }
 
         Selection.activeGameObject = newParent;
     }