Python BaseManager: stop serve_forever

ipc.py

from multiprocessing.managers import BaseManager

class IPC(BaseManager):
    """Little example how to provide a shutdown() function if you us the serve_forever method
    """""

    _server_object = None  # docs.python.org/3.5/library/multiprocessing.html#multiprocessing.managers.BaseManager

    def __init__(self):
        BaseManager.__init__(self, address=('127.0.0.1', 4000), authkey=b'42')

    def start_ipc_server(self, server, serve_forever: bool=False):
        # self.register('some_objects', server)

        self._server_object = self.get_server()
        self._server_object.serve_forever()

    def shutdown(self):
            self._server_object.stop_event.set()