{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "definitions": {
        "version-output": {
            "type": "object",
            "properties": {
                "_id": {
                    "type": "string"
                },
                "database": {
                    "type": "integer"
                }
            },
            "required": [
                "_id",
                "database"
            ]
        }
    },
    "properties": {
        "version-output": {
            "$ref": "#/definitions/version-output"
        }
    },
    "required": [
        "version-output"
    ]
}