/// <remarks/>
 public void ModifyShoppingCartItemsRequestAsync(ModifyShoppingCartItemsRequest ModifyShoppingCartItemsRequest1, object userState) {
     if ((this.ModifyShoppingCartItemsRequestOperationCompleted == null)) {
         this.ModifyShoppingCartItemsRequestOperationCompleted = new System.Threading.SendOrPostCallback(this.OnModifyShoppingCartItemsRequestOperationCompleted);
     }
     this.InvokeAsync("ModifyShoppingCartItemsRequest", new object[] {
                 ModifyShoppingCartItemsRequest1}, this.ModifyShoppingCartItemsRequestOperationCompleted, userState);
 }
 /// <remarks/>
 public void ModifyShoppingCartItemsRequestAsync(ModifyShoppingCartItemsRequest ModifyShoppingCartItemsRequest1) {
     this.ModifyShoppingCartItemsRequestAsync(ModifyShoppingCartItemsRequest1, null);
 }