public object GetService(Type serviceType, string contract = null)
{
var pair = Tuple.Create(serviceType, contract ?? string.Empty);
if (!_registry.ContainsKey(pair))
{
var res = _container.TryGetExportedValue(serviceType);
Intercept(res);
return(res);
}
var ret = _registry[pair].Last()();
Intercept(ret);
return(ret);
}