{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "definitions": {
        "Ext.Array": {
            "type": "object"
        }
    },
    "properties": {
        "bar": {
            "$ref": "#/definitions/Ext.Array"
        }
    },
    "required": [
        "bar"
    ],
    "type": "object"
}