internal static void OnInitialize()
{
GraphUtility.Initialize();
EditorSceneManager.newSceneCreated += onNewSceneCreated;
EditorSceneManager.sceneClosing += onSceneClosing;
EditorSceneManager.sceneSaving += onSceneSaving;
EditorSceneManager.sceneSaved += onSceneSaved;
EditorSceneManager.sceneOpening += onSceneOpening;
EditorSceneManager.sceneOpened += onSceneOpened;
}