/// <summary>
        /// Initialization of the package; this method is called right after the package is sited, so this is the place
        /// where you can put all the initialization code that rely on services provided by VisualStudio.
        /// </summary>
        /// <param name="cancellationToken">A cancellation token to monitor for initialization cancellation, which can occur when VS is shutting down.</param>
        /// <param name="progress">A provider for progress updates.</param>
        /// <returns>A task representing the async work of package initialization, or an already completed task if there is none. Do not return null from this method.</returns>
        protected override async Task InitializeAsync(CancellationToken cancellationToken, IProgress <ServiceProgressData> progress)
        {
            Dte = await GetServiceAsync(typeof(SDTE)) as DTE2;

            _serviceProvider = new ServiceProvider((IServiceProvider)Dte);

            var componentModel = (IComponentModel)GetGlobalService(typeof(SComponentModel));

            _undoHistoryRegistry = componentModel.DefaultExportProvider.GetExportedValue <ITextUndoHistoryRegistry>();

            var plugin = new VsRunningDocTableEventsHandler(this);

            MenuCommandService = await GetServiceAsync(typeof(IMenuCommandService)) as OleMenuCommandService;

            await JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);

            _runningDocumentTable = new RunningDocumentTable(this);
            _runningDocumentTable.Advise(plugin);

            OptionsPage = (OptionsPage)GetDialogPage(typeof(OptionsPage));

            _solutionExplorerContextMenu = new SolutionExplorerContextMenu(this);

            await EnableDisableFormatOnSaveCommand.InitializeAsync(this);
        }
        /// <summary>
        ///     Initializes the singleton instance of the command.
        /// </summary>
        /// <param name="package">Owner package, not null.</param>
        public static async Task InitializeAsync(FormatOnSavePackage package)
        {
            // Switch to the main thread - the call to AddCommand in EnableDisableFormatOnSaveCommand's constructor requires
            // the UI thread.
            await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync(package.DisposalToken);

            var commandService = await package.GetServiceAsync(typeof(IMenuCommandService)) as OleMenuCommandService;

            Instance = new EnableDisableFormatOnSaveCommand(package, commandService);
        }