How to deal with a pointer type parameter in pybind11?

Question

In my c++ code, I have a function like:

bool some_function(std::vector<float>* result){
    result->append(1);
    result->append(2);
    return true;
}

I will update the result vector in "some_function".

I want to use pybind11 to bind this function.

#include<pybind11/pybind11.h>
#include<pybind11/stl.h>

PYBIND11_MODULE(example, m) {
    m.def("some_function", &some_function);
}

Then in my python code, I want to use this function like this way:

result = []
is_success = some_function(result)

I expected the result to be updated like: result = [1, 2]

but actually result = [], still empty.

Please help me how to deal with the pointer parameter in pybind11. Thanks a lot.