mstch/test/data/nested_higher_order_sections.data

mstch::object{
  {"bold", []() {
    return [](const std::string& text, mstch::renderer render) {
      return std::string{"<b>"} + render(text) + std::string{"</b>"};
    };
  }},
  {"person", mstch::object{{"name", std::string{"Jonas"}}}}
}