def _ListExisting(self):
        request = self.__gce_service.instances().list(project=self.__flags.project,
                                                      filter=None,
                                                      zone=self.__flags.zone)
        response = request.execute(http=self.__auth_http)
        if response and 'items' in response:
            return response['items']
        return []
dataset/ETHPy150Open mbrukman/cloud-launcher/src/cloud_launcher.py/GceHandler._ListExisting/original