mailboxen in bulk maken

curl --request POST \
  --url https://api.hybridbox.io/v1/public/accounts/{account_id}/mailboxes/bulk \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "domain": "<string>",
  "items": [
    {
      "first_name": "<string>",
      "last_name": "<string>",
      "local_part": "<string>"
    }
  ]
}
'

{
  "created": [
    {
      "index": 123,
      "mailbox": {
        "created_at": "<string>",
        "domain_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "domain_name": "<string>",
        "first_name": "<string>",
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "last_name": "<string>",
        "local_part": "<string>",
        "primary_email": "<string>",
        "quota": {
          "allowed": 123,
          "used": 123
        },
        "status": "<string>",
        "updated_at": "<string>",
        "aliases": [
          {
            "alias": "<string>",
            "is_catch_all": false
          }
        ],
        "workspace_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "workspace_name": "<string>"
      }
    }
  ],
  "failed": [
    {
      "code": "<string>",
      "index": 123,
      "message": "<string>"
    }
  ]
}