如何给函数参数命名--写成Python的C++扩展？

int add_numbers(int num1, int num2) {
    return num1 + num2;
}

static PyObject* my_extension_add_numbers(PyObject* self, PyObject* args) {
    int num1, num2;
    
    if (!PyArg_ParseTuple(args, "ii", &num1, &num2)) {
        return NULL;
    }
    
    int result = add_numbers(num1, num2);
    
    return PyLong_FromLong(result);
}

static PyMethodDef my_extension_methods[] = {
    {"add_numbers", my_extension_add_numbers, METH_VARARGS, "Add two numbers"},
    {NULL, NULL, 0, NULL}
};

static struct PyModuleDef my_extension_module = {
    PyModuleDef_HEAD_INIT,
    "my_extension",
    "My extension module",
    -1,
    my_extension_methods
};

PyMODINIT_FUNC PyInit_my_extension(void) {
    return PyModule_Create(&my_extension_module);
}

import my_extension

result = my_extension.add_numbers(num1=5, num2=3)
print(result)  # 输出：8