https://cirrus-ci.com/task/5603470202896384?logs=ci#L2681
return utilError{strprintf(_("Error No %s addresses available."), FormatOutputType(type))};
    }
    if (nIndex == -1)
    {
        m_spk_man->TopUp();
        CKeyPool keypool;
        auto op_address = m_spk_man->GetReservedDestination(type, internal, nIndex, keypool);
        if (!op_address) return op_address;
        address = *op_address;
        fInternal = keypool.fInternal;
    }
    return address;
}
void ReserveDestinationKeepDestination()
{
    if (nIndex != -1) {
        m_spk_man->KeepDestination(nIndex, type);
    }
    nIndex = -1;
    address = CNoDestination();
}
void ReserveDestinationReturnDestination()
{
    if (nIndex != -1) {
        m_spk_man->ReturnDestination(nIndex, fInternal, address);
    }
    nIndex = -1;
    address = CNoDestination();
}
bool CWalletDisplayAddress(const CTxDestination& dest)