curl --request GET \
  --url https://api.example.com/admin/v1/buffers/insights/groups

{
  "data": [
    {
      "memoryId": "<string>",
      "insightTypeName": "<string>",
      "groupName": "<string>",
      "total": 123,
      "unbuilt": 123,
      "built": 123
    }
  ]
}