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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _init_dbus(self):
 """ Get the device id """

        _bus = SessionBus()

        if self.device_id is None:
            self.device_id = self._get_device_id(_bus)
            if self.device_id is None:
                return False

        try:
            self._dev = _bus.get(SERVICE_BUS, DEVICE_PATH + "/%s" % self.device_id)
        except Exception:
            return False

        return True