void When(DescribedTodoListItem @event) { /* just so you can see we really get to this point */ }
protected bool Equals(DescribedTodoListItem other) { return(string.Equals(Description, other.Description) && Id.Equals(other.Id)); }
void When(DescribedTodoListItem @event) { _items.Find(item => item.Id == @event.Id).Play(@event); }