cinder/cinder/tests/functional/api_sample_tests/samples/volume_manage_extensions/volume-manage-response.json.tpl

{
    "availability_zone": "az2",
    "bootable": true,
    "cluster": "cluster@backend",
    "description": "Volume imported from existingLV",
    "host": "null",
    "metadata": {
        "key1": "value1",
        "key2": "value2"
    },
    "name": "New Volume",
    "ref": {
        "source-id": "1234",
        "source-name": "existingLV"
    },
    "volume_type": "null"
}