public Task Handle(OperationalTaskChangeEstimateEvent message)
 {
     return(Update(message.SourceId,
                   Builders <OperationalTaskModel> .Update.Set(f => f.Id, message.SourceId),
                   Builders <OperationalTaskModel> .Update.Set(f => f.Estimate, message.Estimate)
                   ));
 }
 private void Apply(OperationalTaskChangeEstimateEvent e)
 {
     Estimate = e.Estimate;
 }