Problem with passing STL containers

[aljohnston112]

I want to be able to pass a map of doubles to doubles from Python to C++, populate it in C++ and then see the results on the Python side. How is this achieved?
I have a function definition in C++ like this

void predict(std::vector<T>& seq, std::map<T, double>& probabilities)

main.cpp looks like this

#include "node.h"
#include "probtree.h"
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
#include <pybind11/stl_bind.h>

PYBIND11_MAKE_OPAQUE(std::vector<double>);
PYBIND11_MAKE_OPAQUE(std::map<double, double>);

namespace py = pybind11;

using namespace std;

int main(int argc, char** argv){

}

PYBIND11_MODULE(sps_c, m){
    py::bind_vector<std::vector<double>>(m, "VectorD");
    py::bind_map<std::map<double, double>>(m, "MapDD");
    py::class_<ProbTree<double>>(m, "ProbTree")
        .def(py::init())
        .def("process", &ProbTree<double>::process)
        .def("predict", &ProbTree<double>::predict)
        ;
}

[aljohnston112]

>>> import sps_c
>>> pt = sps_c.ProbTree
>>> vd = sps_c.VectorD
>>> m = sps_c.MapDD
>>> pt.process(vd)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: process(): incompatible function arguments. The following argument types are supported:
    1. (self: sps_c.ProbTree, arg0: sps_c.VectorD) -> None

Invoked with: <class 'sps_c.VectorD'>

Maybe a List?

>>> pt.process([1.0])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: process(): incompatible function arguments. The following argument types are supported:
    1. (self: sps_c.ProbTree, arg0: sps_c.VectorD) -> None

Invoked with: [1.0]

How do I make that work?

vd.push_back(1.0)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'sps_c.VectorD' has no attribute 'push_back'

Do I have to write a bunch of boilerplate to get STL containers to work?