curl --request GET \
  --url https://api.heygen.com/v3/video-agents/{session_id}/resources/{resource_id} \
  --header 'x-api-key: <api-key>'

{
  "data": {
    "resource_id": "<string>",
    "resource_type": "<string>",
    "source_type": "<string>",
    "url": "<string>",
    "thumbnail_url": "<string>",
    "preview_url": "<string>",
    "created_at": 123,
    "metadata": {}
  }
}