nova/nova/tests/functional/api_sample_tests/api_samples/servers/v2.71/server-groups-post-resp.json.tpl

{
    "server_group": {
        "id": "%(id)s",
        "members": [],
        "name": "test",
        "policy": "affinity",
        "project_id": "6f70656e737461636b20342065766572",
        "rules": {},
        "user_id": "admin"
    }
}