{
  "type": "object",
  "description": "An item in the shopping cart.",
  "name": "CartItem",
  "properties": {
    "cart_item_id": {
      "type": "string",
      "description": "Unique identifier for the cart item."
    },
    "catalog_item_id": {
      "type": "string",
      "description": "The sys_id of the catalog item."
    },
    "quantity": {
      "type": "integer",
      "description": "The quantity ordered."
    },
    "subtotal": {
      "type": "string",
      "description": "The subtotal for this cart item."
    }
  },
  "$schema": "https://json-structure.org/draft/2020-12/schema"
}