Returning a shared pointer to a list of objects?

[wassimj]

Hi I am a complete noob so be gentle and please assume I know nothing. I am working with someone who is helping me create python bindings for a C++ library. One hurdle he is facing is that some class methods in the library are void but take a pointer to a list as an argument, populate it and return it. the interface created the following:

.def(
            "Vertices", 
            (void(Topology::*)(::std::list<std::shared_ptr<TopologicCore::Vertex>, std::allocator<std::shared_ptr<TopologicCore::Vertex>>> &) const ) &Topology::Vertices, 
            " " , py::arg("rVertices") )

so assume I have an object "t" that has vertices. In Python, how would I get back a list of vertices from this object? If I am using cppyy, I would do the following:

verts = cppyy.gbl.std.list[topologic.Vertex.Ptr]()
_ = t.Vertices(verts)
print(list(verts)) #will print a pythonic list of topologic vertex objects

Thank you for any help you can provide.