{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "Custom Types",
    "description": "Custom Types",
    "definitions": {
        "address": {
            "type": "string"
        }
    },
    "properties": {
        "address": {
            "$ref": "#/definitions/address"
        }
    },
    "required": [
        "address"
    ]
}