https://twitter.com/2btc10000pizzas/status/1303768424133398528

No idea what could be going on here :/
{
public:
    struct Expect {
        util::SettingsValue setting;
        bool default_string = false;
        bool default_int = false;
        bool default_bool = false;
        const char* string_value = nullptr;
        Optional<int64_t> int_value;
        Optional<bool> bool_value;
        Optional<std::vector<std::string>> list_value;
        const char* error = nullptr;
        Expect(util::SettingsValue s) : setting(std::move(s)) {}
        Expect& DefaultString() { default_string = true; return *this; }
        Expect& DefaultInt() { default_int = true; return *this; }
        Expect& DefaultBool() { default_bool = true; return *this; }