private async Task LoadAndShowOneDriveItemsAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken) { var tokenState = (TokenState)stepContext.Values["accessToken"]; var oneDriveItems = await GraphApiHelper.GetOneDriveFilesListAsync(tokenState, cancellationToken); await Cards.ShowActivityWithAttachmentsAsync( stepContext.Context, Cards.BuildOneDriveAttachmentList(oneDriveItems), cancellationToken : cancellationToken); }