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>"
  ],
  "conditionId": 123,
  "locationShopifyId": 123,
  "pickLocation": "<string>",
  "acquisitionCostCents": 123
}
'

[
  {
    "id": 123,
    "createdAt": "2023-11-07T05:31:56Z",
    "activeRentalId": 123,
    "productTitle": "<string>",
    "serial": "<string>",
    "sequentialId": 123,
    "shopifyVariantId": 123,
    "tags": [
      "<string>"
    ],
    "variantTitle": "<string>",
    "activeReturnId": 123,
    "condition": {
      "id": 123,
      "createdAt": "2023-11-07T05:31:56Z",
      "severityKey": "<string>",
      "severityTone": "<string>",
      "title": "<string>"
    },
    "conditionId": 123,
    "imageUrl": "<string>",
    "location": {
      "shopifyId": 123,
      "name": "<string>"
    },
    "pickLocation": "<string>",
    "acquisitionCostCents": 123,
    "roiCents": 123,
    "shopifyProductId": 123,
    "timelineEvents": [
      {
        "id": 123,
        "eventableId": 123,
        "eventableType": "<string>",
        "eventType": "<string>",
        "metadata": {},
        "createdAt": "2023-11-07T05:31:56Z",
        "updatedAt": "2023-11-07T05:31:56Z",
        "author": "<string>"
      }
    ],
    "customFields": [
      {
        "id": 123,
        "ownerId": 123,
        "definitionId": 123,
        "key": "<string>",
        "value": "<string>",
        "valueJson": "<unknown>"
      }
    ]
  }
]