Method len

include/pybind11/stl_bind.h:684–684

struct ValuesViewImpl : public detail::values_view {
    explicit ValuesViewImpl(Map &map) : map(map) {}
    size_t len() override { return map.size(); }
    iterator iter() override { return make_value_iterator(map.begin(), map.end()); }
    Map ↦
};