json_schema: {
    "properties": {
      "end_datetime": {
        "description": "The end datetime of the event",
        "format": "date-time",
        "type": "string"
      },
      "location": {
        "description": "The location of the event",
        "type": "string"
      },
      "start_datetime": {
        "description": "The start datetime of the event",
        "format": "date-time",
        "type": "string"
      },
      "title": {
        "description": "The title of the event",
        "type": "string"
      }
    },
    "required": [
      "title",
      "start_datetime",
      "end_datetime",
      "location"
    ],
    "type": "object"
  }