curl --request GET \
  --url https://api-qa.interactly.ai/integrations/v2/resource-records/{integration_id}/appointments/statistics \
  --header 'Authorization: Bearer <token>'

{
  "overview": {
    "total": 0
  },
  "trends": [
    {
      "_id": "2023-11-07T05:31:56Z",
      "successful": 0,
      "failed": 0
    }
  ],
  "source": [
    {
      "_id": "<string>",
      "count": 0
    }
  ],
  "utm_source": [
    {
      "_id": "<string>",
      "count": 0
    }
  ],
  "utm_medium": [
    {
      "_id": "<string>",
      "count": 0
    }
  ],
  "utm_campaign": [
    {
      "_id": "<string>",
      "count": 0
    }
  ]
}