curl --request GET \
  --url https://api.getbluma.com/api/v1/templates/{templateId}/variants \
  --header 'Authorization: Bearer <token>'

{
  "variants": [
    {
      "id": "<string>",
      "template_id": "<string>",
      "name": "<string>",
      "payload": {
        "videoCount": 123,
        "settings": {
          "systemPrompt": "<string>",
          "captionPrompt": "<string>",
          "compositionProps": {}
        }
      },
      "is_active": true,
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z"
    }
  ],
  "total": 123
}