{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "A hash of keys that should be returned, to paths to the data from each item that should be returned.",
    "additionalProperties": {
        "description": "A path to the data that should be returned for this key, for each item. Each entry in the array represents a key that should be traversed in the results.",
        "type": "array",
        "items": {
            "description": "The next key to traverse (['a', 'b', 'c'] means look up { \"a\": { \"b\": { \"c\": ... } } }) and assign that value to the key.",
            "type": "string"
        }
    },
    "example": {
        "node_name": [
            "name"
        ],
        "apache_port": [
            "apache",
            "http_port"
        ]
    }
}