Method ToString

src/test/fuzz/miniscript.cpp:128–138

    }

    std::optional<std::string> ToString(const Key& key, bool& has_priv_key) const
    {
        has_priv_key = false;
        auto it = TEST_DATA.dummy_key_idx_map.find(key);
        if (it == TEST_DATA.dummy_key_idx_map.end()) {
            return HexStr(key);
        }
        has_priv_key = true;
        uint8_t idx = it->second;
        return HexStr(std::span{&idx, 1});
    }

    std::vector<unsigned char> ToPKBytes(const Key& key) const {
        if (!miniscript::IsTapscript(script_ctx)) {