Method isLegacy

src/wallet/interfaces.cpp:488–488

        RemoveWallet(m_context, m_wallet, false /* load_on_start */);
    }
    bool isLegacy() override { return m_wallet->IsLegacy(); }
    std::unique_ptr<Handler> handleUnload(UnloadFn fn) override
    {
        return MakeHandler(m_wallet->NotifyUnload.connect(fn));