{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "http://example.com/product.schema.json",
    "title": "Step-by-Step Challenge",
    "description": "A step-by-step challenge definition",
    "type": "object",
    "properties": {
        "version": {
            "type": "string"
        }
    },
    "anyOf": [{
        "if": {
            "properties": {
                "version": {
                    "const": "1.0.0"
                }
            },
            "required": ["version"]
        },
        "then": {
            "$ref": "./step-by-step/1.0.0.json"
        }
    }]
  }