curl --request GET \
  --url https://api.example.com/api/intelligence/v1/get-gdelt-topic-timeline

{
  "topic": "<string>",
  "tone": [
    {
      "date": "<string>",
      "value": 123
    }
  ],
  "vol": [
    {
      "date": "<string>",
      "value": 123
    }
  ],
  "fetchedAt": "<string>",
  "error": "<string>"
}