curl --request POST \
  --url https://api.samsa.ai/public/v1/models/prepare \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "files": [
    {
      "filename": "logo.png",
      "content_type": "image/webp",
      "size": 204800
    }
  ],
  "instruction": "<string>"
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "uploads": [
    {
      "key": "<string>",
      "upload_url": "<string>",
      "index": 123
    }
  ],
  "expires_in": 123
}