curl --request GET \
  --url https://api.devin.ai/v3/enterprise/metrics/sessions-by-category \
  --header 'Authorization: Bearer <token>'

{
  "categories": [
    {
      "acus": 123,
      "category": "<string>",
      "sessions_count": 123,
      "subcategories": [
        {
          "acus": 123,
          "display_name": "<string>",
          "sessions_count": 123,
          "subcategory_id": "<string>"
        }
      ]
    }
  ]
}