json_schema: {
    "properties": {
      "category": {
        "description": "The category of news to search for",
        "type": "string"
      },
      "date_range": {
        "properties": {
          "end_date": {
            "description": "The end date of the news articles",
            "format": "date",
            "type": "string"
          },
          "start_date": {
            "description": "The start date of the news articles",
            "format": "date",
            "type": "string"
          }
        },
        "type": "object"
      },
      "keyword": {
        "description": "The keyword to search for in news titles or sources",
        "type": "string"
      }
    },
    "type": "object"
  }