curl --request GET \
  --url https://waves-api.smallest.ai/api/v1/{model}/get_voices \
  --header 'Authorization: Bearer <token>'

{
  "voices": [
    {
      "voiceId": "<string>",
      "displayName": "<string>",
      "tags": {
        "language": [
          "<string>"
        ],
        "accent": "<string>",
        "gender": "<string>"
      }
    }
  ]
}