Method GetCoin

src/test/fuzz/coinscache_sim.cpp:147–154

public:
    std::optional<Coin> GetCoin(const COutPoint& outpoint) const final
    {
        if (auto it{m_data.find(outpoint)}; it != m_data.end()) {
            assert(!it->second.IsSpent());
            return it->second;
        }
        return std::nullopt;
    }

    void BatchWrite(CoinsViewCacheCursor& cursor, const uint256&) final
    {