curl --request POST \
  --url https://app.supercycle.com/api/v1/items \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "shopifyVariantId": 123,
  "quantity": 99,
  "serials": [
    "<string>"
  ],
  "visibility": "available",
  "conditionId": null,
  "locationShopifyId": null,
  "pickLocation": null
}'

[
  {
    "id": 123,
    "createdAt": "2023-11-07T05:31:56Z",
    "activeRentalId": null,
    "activeReturnId": null,
    "condition": null,
    "conditionId": null,
    "imageUrl": null,
    "location": null,
    "pickLocation": null,
    "productTitle": "<string>",
    "serial": null,
    "sequentialId": 123,
    "shopifyProductId": null,
    "shopifyVariantId": null,
    "status": "processed",
    "tags": [
      "<string>"
    ],
    "variantTitle": null,
    "visibility": "available",
    "timelineEvents": [
      {
        "id": 123,
        "eventableId": 123,
        "eventableType": "<string>",
        "eventType": "<string>",
        "metadata": {},
        "createdAt": "2023-11-07T05:31:56Z",
        "updatedAt": "2023-11-07T05:31:56Z",
        "author": "<string>"
      }
    ]
  }
]