private void DeleteObjects(List<long> obj_ids, bool isAsync, DeleteObjectsCallback callback, Object state)
        {
            var parameterList = new Dictionary<string, string> { { "method", "facebook.data.deleteObjects" } };
            Utilities.AddList(parameterList, "obj_ids", obj_ids);

            if (isAsync)
            {
                SendRequestAsync<data_deleteObjects_response, bool>(parameterList, new FacebookCallCompleted<bool>(callback), state);
                return;
            }

            SendRequest(parameterList);
        }
 /// <summary>
 /// Delete multiple objects permanently. 
 /// </summary>
 /// <example>
 /// <code>
 /// 
 /// </code>
 /// </example>
 /// <param name="obj_ids">A list of 64-bit integers that are numeric identifiers (fbids) of objects to delete.</param>
 /// <param name="callback">The AsyncCallback delegate</param>
 /// <param name="state">An object containing state information for this asynchronous request</param>        
 public void DeleteObjectsAsync(List<long> obj_ids, DeleteObjectsCallback callback, Object state)
 {
     DeleteObjects(obj_ids, true, callback, state);
 }