{
  "illustrative": true,
  "description": "Fictional retailer; teaching example, not a live feed",
  "records": [
    {
      "product_id": "luma-500",
      "product": "Luma bottle",
      "variant": "500 ml",
      "price": 49,
      "currency": "USD",
      "availability": "in_stock",
      "source_url": "https://shop.example.invalid/products/luma-500",
      "observed_at": "2026-10-03T09:00:00Z"
    },
    {
      "product_id": "luma-750",
      "product": "Luma bottle",
      "variant": "750 ml",
      "price": null,
      "currency": "USD",
      "availability": "out_of_stock",
      "source_url": "https://shop.example.invalid/products/luma-750",
      "observed_at": "2026-10-03T09:00:00Z"
    }
  ]
}