Method attr

include/pybind11/pytypes.h:2611–2613

}
template <typename D>
obj_attr_accessor object_api<D>::attr(handle key) const {
    return {derived(), reinterpret_borrow<object>(key)};
}
template <typename D>
obj_attr_accessor object_api<D>::attr(object &&key) const {
    return {derived(), std::move(key)};