std::ostream& operator<<(std::ostream& out, const SHAMapMissingNode& mn)
{
    switch (mn.getMapType ())
    {
    case smtTRANSACTION:
		out << "Missing/TXN(" << mn.getNodeID() << "/" << mn.getNodeHash() << ")";
        break;

    case smtSTATE:
		out << "Missing/STA(" << mn.getNodeID() << "/" << mn.getNodeHash() << ")";
        break;

    case smtFREE:
    default:
		out << "Missing/" << mn.getNodeID();
        break;
    };

	return out;
}