[
  {
    "schema": {
      "type": "object",
      "properties": {
        "sizes": {
          "type": "object",
          "properties": {
            "first": {
              "type": "object",
              "properties": {
                "count": {
                  "type": "integer",
                  "default": 3,
                  "enum": [3, 5, 7]
                }
              },
              "required": ["count"]
            }
          },
          "required": ["first"]
        }
      },
      "required": ["sizes"]
    },
    "valid": {
      "sizes": {
        "first": {
          "count": 3
        }
      }
    },
    "invalid": {
      "sizes": {
        "first": {
          "count": 2
        }
      }
    }
  }
]