curl --request GET \
  --url http://localhost/api/v3/batches/{batch}

{
  "data": {
    "id": "<string>",
    "import_job_id": 123,
    "entity_type": "<string>",
    "total_count": 123,
    "status": "<string>",
    "success_count": "<string>",
    "failed_count": "<string>",
    "processed_count": "<string>",
    "created_at": "<string>",
    "updated_at": "<string>",
    "items": [
      {
        "id": 123,
        "entity_id": "<string>",
        "external_id": "<string>",
        "status": "<string>",
        "error": "<string>",
        "created_at": "<string>",
        "updated_at": "<string>"
      }
    ]
  }
}