json_schema: {
    "properties": {
      "end_time": {
        "description": "The end time of the event (in YYYY-MM-DD HH:MM format)",
        "type": "string"
      },
      "event_name": {
        "description": "The name of the event",
        "type": "string"
      },
      "location": {
        "description": "The location of the event",
        "type": "string"
      },
      "start_time": {
        "description": "The start time of the event (in YYYY-MM-DD HH:MM format)",
        "type": "string"
      }
    },
    "required": [
      "event_name",
      "start_time",
      "end_time",
      "location"
    ],
    "type": "object"
  }