Method to_string

src/core/impl/utils/json.cpp:32–36

}  // anonymous namespace

std::string Value::to_string(int indent) const {
    std::string ostr;
    writeto(ostr, indent);
    return ostr;
}

void Value::writeto_fpath(const char* fout_path, int indent) const {
    auto str = to_string(indent);