public void SetProperty <TValue>(Guid key, TValue value) => localEndpoint.SetProperty(key, value);
public static void SetProperty <TValue>(this ManageableCourierEndpoint courierEndpoint, TValue value)
{
var guid = ((GuidAttribute)typeof(TValue).GetCustomAttribute(typeof(GuidAttribute))).Value;
courierEndpoint.SetProperty(Guid.Parse(guid), value);
}