Servicenow Service Catalog Cart Item Input Structure

{
  "type": "object",
  "description": "Input for adding a catalog item to the cart or ordering directly.",
  "name": "CartItemInput",
  "properties": {
    "sysparm_quantity": {
      "type": "integer",
      "description": "The quantity of items to order."
    },
    "variables": {
      "type": "object",
      "description": "Name-value pairs for the catalog item variables. Keys are variable names and values are the user-provided entries."
    }
  },
  "required": [
    "sysparm_quantity"
  ],
  "$schema": "https://json-structure.org/draft/2020-12/schema"
}