private static void UpdateCleanup() { AssetDatabase.ImportAsset(AGXUnityDirectory, ImportAssetOptions.ImportRecursive | ImportAssetOptions.DontDownloadFromCacheServer | ImportAssetOptions.ForceSynchronousImport); #if UNITY_2020_1_OR_NEWER EditorApplication.update += OnEditorUpdate; DefineSymbols.Add(OnImportDefineSymbol); #endif }