/// <remarks/>
 public void GetContactsAsync(GetContactsRequestType GetContactsRequest, object userState) {
     if ((this.GetContactsOperationCompleted == null)) {
         this.GetContactsOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetContactsOperationCompleted);
     }
     this.InvokeAsync("GetContacts", new object[] {
                 GetContactsRequest}, this.GetContactsOperationCompleted, userState);
 }
 /// <remarks/>
 public void GetContactsAsync(GetContactsRequestType GetContactsRequest) {
     this.GetContactsAsync(GetContactsRequest, null);
 }