{
  "$name": "ApExpire",
  "$description": "Model with expiration",
  "$inherits": [],
  "$attributes": {
    "expireAt": {
      "$comment": "Date of expire",
      "$type": "DATE",
      "$nullable": true
    },
    "expired": {
      "$comment": "Expired or not",
      "$type": "BOOLEAN",
      "$dynamic": true,
      "$readonly": true,
      "$get": "!!this.getDataValue('expireAt') && (this.getDataValue('expireAt') < new Date());"
    }
  },
  "$indices": {}
}