pybind11 bind c++ none const reference

[michaelchao]

None const reference is called input output parameter also. For example, there is

void test(std::string & data) {
  data += " github";
}

PYBIND11_MODULE(example11, m) {
  m.def("test", [](std::reference_wrapper<std::string> w) {
    test(w.get());
  })
  ;
}

import example11

def my_test():
  data = "hello"
  example11.test(data)
  print("python: {}".format(data))

if __name__ == '__main__':
  my_test()

What i expect is hello github, but hello is returned.
Does pybind11 support this feature? if so, please kindly offer me an example, thank you very much :)