public Coin(IPerson issuer, IPerson recipient, LaborAgreement laborAgreement)
{
Id = new Id();
Issuer = issuer;
Recipient = recipient;
Labor = laborAgreement;
}
public Coin Build()
{
var laborAgreement = new LaborAgreement(_laborDescription, _laborHours, _equivalentProduct);
return(new Coin(_issuer, _recipient, laborAgreement));
}