def _get_attached_to(self, blockdevice_id):
        with start_action(
            action_type=u"flocker:node:agents:gce:get_attached_to",
            blockdevice_id=blockdevice_id
        ) as action:
            try:
                disk = self._operations.get_disk_details(blockdevice_id)
            except HttpError as e:
                if e.resp.status == 404:
                    raise UnknownVolume(blockdevice_id)
                else:
                    raise
            attached_to = _extract_attached_to(disk)
            if not attached_to:
                raise UnattachedVolume(blockdevice_id)
            action.add_success_fields(attached_to=attached_to)
            return attached_to
Initialize the sidebar.
dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/gce.py/GCEBlockDeviceAPI._get_attached_to--crossover with--dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/datagrids/sidebar.py/Sidebar.__init__