function(shared_ptr<Base>) not accepting a Derived instance (MWE)

[eudoxos]

In the following code, func_shared is accepting shared_ptr<Base> and fails when passed an instance of Derived (both are wrapped with nanobind), the error being:

Traceback (most recent call last):
  File "/home/eudoxos/temp/nanobind/test.py", line 3, in <module>
    nbtest.func_shared(nbtest.Derived())
TypeError: func_shared(): incompatible function arguments. The following argument types are supported:
    1. func_shared(arg: std::shared_ptr<Base>, /) -> None

Passing Derived instance to func(Base&) works as expected.

Am I overlooking something obvious? I found this discussion of something similar, but it was solved by properly declaring base classes in nb::class_, which I already do.

The MWE is here:

#include<nanobind/nanobind.h>
#include<memory>
namespace nb=nanobind;

struct Base{};
struct Derived: public Base {};
void func(Base&){ }
void func_shared(std::shared_ptr<Base>){ }


NB_MODULE(nbtest, m) {
	nb::class_<Base>(m,"Base");
	nb::class_<Derived, Base>(m,"Derived").def(nb::init<>());
	m.def("func",&func);
	m.def("func_shared",&func_shared);
};

Python code:

import nbtest
nbtest.func(nbtest.Derived()) # okay
nbtest.func_shared(nbtest.Derived()) # fails

[eudoxos]

Oh, bummer:

#include<nanobind/stl/shared_ptr.h>

fixed the issue.