curl --request POST \
  --url https://api.duvo.ai/v1/queues/{queue_id}/labels \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "value": "<string>",
  "key": "",
  "color_hue": 180
}
'

{
  "label": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "key": "<string>",
    "value": "<string>",
    "color_hue": 180,
    "case_count": 4503599627370495
  }
}