Get availability Argos

{
  "success": true,
  "data": {
    "stores": [
      {
        "distance": "0.316",
        "storeinfo": {
          "store_id": "6516",
          "legacy_name": "Holborn Circus (Argos Collection Point)",
          "links": [
            {
              "rel": "@self",
              "href": "//www.argos.co.uk/stores/api/store/6516"
            },
            {
              "rel": "ui",
              "href": "https://www.argos.co.uk/stores/6516-holborn-circus-(argos-collection-point)"
            },
            {
              "rel": "ui-rel",
              "href": "/stores/6516-holborn-circus-(argos-collection-point)"
            }
          ],
          "town": "London",
          "county": "Greater London",
          "postcode": "EC1N 2TD",
          "country": "GB",
          "gmb_status": null,
          "gmb_name": null,
          "address_line": [
            "123 Holborn",
            null,
            null,
            null,
            null
          ],
          "location": {
            "longitude": "-0.108495",
            "latitude": "51.518071"
          },
          "phonebook": [
            {
              "name": "Primary",
              "number": "0345 640 2020"
            },
            {
              "name": "additional",
              "number": null
            }
          ],
          "categories": null,
          "timetable": {
            "defaultWeek": {
              "monday": [
                {
                  "open": "07:00",
                  "close": "21:00"
                }
              ],
              "tuesday": [
                {
                  "open": "07:00",
                  "close": "21:00"
                }
              ],
              "wednesday": [
                {
                  "open": "07:00",
                  "close": "21:00"
                }
              ],
              "thursday": [
                {
                  "open": "07:00",
                  "close": "21:00"
                }
              ],
              "friday": [
                {
                  "open": "07:00",
                  "close": "21:00"
                }
              ],
              "saturday": [
                {
                  "open": "09:00",
                  "close": "18:00"
                }
              ],
              "sunday": [
                {
                  "open": "09:00",
                  "close": "18:00"
                }
              ]
            },
            "weeks": null,
            "specialDays": {}
          },
          "photos": [
            {
              "type": "profile",
              "href": null
            },
            {
              "type": "logo",
              "href": null
            },
            {
              "type": "cover",
              "href": null
            },
            {
              "type": "preferred",
              "href": null
            },
            {
              "type": "other",
              "href": null
            }
          ],
          "labels": null,
          "amenities": null,
          "offerings": null,
          "payments": null,
          "spoke_delivery_slots": {
            "am_friday": false,
            "am_monday": false,
            "am_saturday": false,
            "am_sunday": false,
            "am_thursday": false,
            "am_tuesday": false,
            "am_wednesday": false,
            "pm_friday": false,
            "pm_monday": false,
            "pm_saturday": false,
            "pm_sunday": false,
            "pm_thursday": false,
            "pm_tuesday": false,
            "pm_wednesday": false
          },
          "locator_settings": {
            "hns": 1,
            "prepay": 1,
            "storeprepay": 6
          },
          "brand": "Sainsbury's",
          "mandatory_prepay": null,
          "emergency_statement": null,
          "click_and_collect_location": null,
          "digital_check_in": false,
          "sainsburys_service_zone": false
        },
        "availability": [
          {
            "requested": "2026-08-06T11:29:13.139Z",
            "nodeId": "6516",
            "sku": "7740064",
            "quantityRequested": 1,
            "quantityAvailable": 0,
            "excluded": false
          }
        ],
        "messages": {
          "7740064": {
            "messageKey": "COLLECTION_OUT_OF_STOCK",
            "text": "Not in stock here",
            "icon": "out_of_stock",
            "analyticsCode": "c5",
            "fasttrack": "false"
          },
          "collection_summary": {
            "messageKey": "SINGLE_SKU_COLLECTION_MESSAGE_AT",
            "text": "Not in stock here",
            "icon": "out_of_stock",
            "analyticsCode": "tc0",
            "fasttrack": "false"
          }
        },
        "store_i