{
  "session": {
    "properties": {
      "duration": {
        "type": "long"
      },

      "lastEventDate": {
        "type": "date"
      },

      "properties": {
        "properties": {
          "location": {
            "type": "geo_point"
          }
        }
      },

      "size": {
        "type": "long"
      },
      "timeStamp": {
        "type": "date"
      }
    }
  }
}