{
    "animal": "echo-env",
    "feature": "Variable resolution",
    "proof": {
        "variables": {
            "ZOO_GREETING": {
                "masked": false,
                "value": "from the compose file"
            },
            "ZOO_SECRET_TOKEN": {
                "masked": true,
                "length": 22
            }
        }
    }
}