json_schema: {
    "properties": {
      "food_items": {
        "description": "The food items consumed",
        "items": {
          "properties": {
            "calories": {
              "description": "The calories per serving of the food item",
              "type": "number"
            },
            "name": {
              "description": "The name of the food item",
              "type": "string"
            },
            "quantity": {
              "description": "The quantity of the food item",
              "type": "number"
            }
          },
          "required": [
            "name",
            "quantity",
            "calories"
          ],
          "type": "object"
        },
        "type": "array"
      }
    },
    "required": [
      "food_items"
    ],
    "type": "object"
  }