public async Task<IUnixDirectoryEntry> CreateDirectoryAsync(IUnixDirectoryEntry targetDirectory, string directoryName, CancellationToken cancellationToken) { var targetFolderItem = ((OneDriveDirectoryEntry)targetDirectory).Item; var folderItem = await Service.CreateFolderAsync(Drive.Id, targetFolderItem.Id, directoryName, cancellationToken); return new OneDriveDirectoryEntry(this, folderItem, false); }