curl --request POST \
  --url https://modelslab.com/api/v6/image_editing/caption \
  --header 'Content-Type: application/json' \
  --data '
{
  "key": "<string>",
  "init_image": "<string>",
  "length": "normal",
  "base64": false,
  "webhook": "<string>",
  "track_id": 123
}
'

{
  "generationTime": 123,
  "id": 123,
  "output": [
    "<string>"
  ],
  "proxy_links": [
    "<string>"
  ],
  "meta": {}
}