bwatts

public class WorkItem : Aggregate
{
    public WorkItem(EntityId id, string description, TimeSpan retryInterval)
    {
        Announce(new WorkItemCreatedEvent(id, description, retryInterval));
    }

    public string Description { get; private set; }
    public Progress Progress { get; private set; }
    public TimeSpan RetryInterval { get; private set; }

bwatts

public class IntervalComparisons
{
    [Scenario]
    public void Linq_NoBaseClass()
    {
        var result =
            from left in "Given an interval".Of(Interval.WholeStep)
            from right in "And a lesser interval".Of(Interval.HalfStep)
            select "When comparing them".Do(left.CompareTo(right));