{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "definitions": {
        "MyObject": {
            "type": "object",
            "properties": {
                "export": {
                    "$ref": "#/definitions/MyExportString"
                },
                "private": {
                    "type": "string"
                }
            },
            "required": [
                "export",
                "private"
            ],
            "additionalProperties": false
        },
        "MyExportString": {
            "type": "string"
        }
    },
    "$ref": "#/definitions/MyObject"
}