/// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='itemData'>
 /// </param>
 public static void AddListItem(this IShoppingAPI operations, Item itemData = default(Item))
 {
     operations.AddListItemAsync(itemData).GetAwaiter().GetResult();
 }
 public async Task AddItem(Item item)
 {
     await _client.AddListItemAsync(item);
 }