public void Deactivate(UserId deactivatedBy) =>
 Apply(new Events.V1.ClassifiedAdDeactivated
 {
     Id            = Id,
     DeactivatedBy = deactivatedBy,
 });
 public void Remove(UserId removedBy) =>
 Apply(new Events.V1.ClassifiedAdRemoved
 {
     Id        = Id,
     RemovedBy = removedBy,
 });
 public void MarkAsSold(UserId markedBy) =>
 Apply(new Events.V1.ClassifiedAdMarkedAsSold
 {
     Id             = Id,
     MarkedAsSoldBy = markedBy,
 });