{
  "description":"report the temprature at intervals",
  "spec": {
    "id":"__HOPE__/demo/edison/thermometer_report_001",
    "name": "thermometer report",
    "in": {
      "ports": [{
        "name": "interval",
        "type": "int",
        "default": 3000
      }]
    },
    "out": {
      "ports": [{
        "name": "temprature",
        "type": "int"
      }]
    }
  }
}