Function timing_json

app/server/runtime.cpp:203–207

    if (value->is_string()) {
        const auto str = value->as_string();
        if (str == "true" || str == "1") {
            return true;
        }
        if (str == "false" || str == "0") {
            return false;
        }
    }
    throw std::runtime_error(key + " must be a boolean");