curl --request GET \
  --url https://api.example.com/singer_info

{
  "policy": "<string>",
  "portrait": "<string>",
  "style_infos": [
    {
      "id": 123,
      "icon": "<string>",
      "voice_samples": [
        "<string>"
      ],
      "portrait": "<string>"
    }
  ]
}