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