"Pet": {
  "type": "object",
  "xml": {"name": "Pet"},
  "required": [
    "name",
    "photoUrls"
  ],
  "properties": {
    "id": {"type": "integer"},
    "category": {"$ref": "#/definitions/Category"},
    "name": {
      "type": "string",
      "example": "doggie"
    },
    "photoUrls": {
      "type": "array",
      "xml": {
        "name": "photoUrl",
        "wrapped": true
      },
      "items": {}
    },
    "tags": {
      "type": "array",
      "xml": {
        "name": "tag",
        "wrapped": true
      },
      "items": {}
    },
    "status": {
      "description": "pet status in the store",
      "type": "string",
      "enum": [
        "sold",
        "pending",
        "available"
      ]
    }
  }
}

 "id": {"type": "integer"}

 "category": {"$ref": "#/definitions/Category"}

 "name": {
  "type": "string",
  "example": "doggie"
}

 "photoUrls": {
  "type": "array",
  "xml": {
    "name": "photoUrl",
    "wrapped": true
  },
  "items": {"type": "string"}
}

 "items": {"type": "string"}

 "tags": {
  "type": "array",
  "xml": {
    "name": "tag",
    "wrapped": true
  },
  "items": {"$ref": "#/definitions/Tag"}
}

 "items": {"$ref": "#/definitions/Tag"}

 "status": {
  "description": "pet status in the store",
  "type": "string",
  "enum": [
    "sold",
    "pending",
    "available"
  ]
}