Method swap

include/PyEventLoop.hh:104–106

* @brief Replace the underlying `asyncio.Handle` Python object with the provided value * @return the old `asyncio.Handle` object */

     * @return the old `asyncio.Handle` object
     */
    inline PyObject *swap(PyObject *newHandleObject) {
      return std::exchange(_handle, newHandleObject);
    }

    /**
     * @brief Getter for if the timer has been ref'ed