private ListRecordsRequest PrepareListRecordsRequest(string datasetName, long lastSyncCount)
{
ListRecordsRequest request = new ListRecordsRequest();
request.IdentityPoolId = identityPoolId;
request.IdentityId = this.GetCurrentIdentityId();
request.DatasetName = datasetName;
request.LastSyncCount = lastSyncCount;
// mark it large enough to reduce # of requests
request.MaxResults = 1024;
return request;
}