json_schema: {
    "properties": {
      "items": {
        "items": {
          "properties": {
            "discount_percentage": {
              "description": "The percentage of discount to be applied on the item",
              "type": "number"
            },
            "name": {
              "description": "The name of the item",
              "type": "string"
            },
            "price": {
              "description": "The price of the item",
              "type": "number"
            }
          },
          "required": [
            "name",
            "price",
            "discount_percentage"
          ],
          "type": "object"
        },
        "type": "array"
      }
    },
    "required": [
      "items"
    ],
    "type": "object"
  }