/// <summary>
/// Starts call to the services specified by the service and token ids on a background thread.
/// </summary>
/// <param name="serviceOrTokenIds">Ids for the services and/or tokens to retrieve information for.</param>
/// <param name="cacheRegion">Cache region to use for storing and retrieving values, if required by the services called.</param>
/// <param name="timeout">Maximum time the services should wait for answers from external services.</param>
public void StartBackgroundServiceCalls(IEnumerable <Guid> serviceOrTokenIds, string cacheRegion,
TimeSpan timeout)
{
_taskScheduler.QueueBackgroundWorkItem(async token =>
{
await CallServicesAsync(serviceOrTokenIds, cacheRegion, timeout);
});
}