/// <remarks/>
 public void GetMultipleItemsAsync(GetMultipleItemsRequestType GetMultipleItemsRequest, object userState) {
     if ((this.GetMultipleItemsOperationCompleted == null)) {
         this.GetMultipleItemsOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetMultipleItemsOperationCompleted);
     }
     this.InvokeAsync("GetMultipleItems", new object[] {
                 GetMultipleItemsRequest}, this.GetMultipleItemsOperationCompleted, userState);
 }
 /// <remarks/>
 public void GetMultipleItemsAsync(GetMultipleItemsRequestType GetMultipleItemsRequest) {
     this.GetMultipleItemsAsync(GetMultipleItemsRequest, null);
 }