Method ~PyStream

python/src/wrap_stream.cpp:30–35

    next_ = iterable_factory_().attr("__iter__")().attr("__next__");
  }
  ~PyStream() {
    py::gil_scoped_acquire gil;

    iterable_factory_.release().dec_ref();
    next_.release().dec_ref();
  }

  virtual void reset() {
    py::gil_scoped_acquire gil;