/// <remarks/>
 public void findCompletedItemsAsync(FindCompletedItemsRequest findCompletedItemsRequest, object userState) {
     if ((this.findCompletedItemsOperationCompleted == null)) {
         this.findCompletedItemsOperationCompleted = new System.Threading.SendOrPostCallback(this.OnfindCompletedItemsOperationCompleted);
     }
     this.InvokeAsync("findCompletedItems", new object[] {
                 findCompletedItemsRequest}, this.findCompletedItemsOperationCompleted, userState);
 }
 /// <remarks/>
 public void findCompletedItemsAsync(FindCompletedItemsRequest findCompletedItemsRequest) {
     this.findCompletedItemsAsync(findCompletedItemsRequest, null);
 }