GH_DocUndoEventArgsEventArgsReferences public class GH_DocUndoEventArgs : EventArgs Show allThese arguments are passed along with UndoStateChanged events on GH_Document. ObsoleteInherited PropertiesDocument#public GH_Document Document { get; }Gets the document that raised the event.Operation#public GH_UndoOperation Operation { get; }Gets the type of undo operation that caused this event.Record#public GH_UndoRecord Record { get; }Gets the UndoRecord pertaining to this event. Not every Event type has a single record associated with it so be sure to test for null.