curl --request GET \
  --url https://api.ahasend.com/v2/accounts/{account_id}/statistics/transactional/deliverability \
  --header 'Authorization: Bearer <token>'

{
  "object": "list",
  "data": [
    {
      "time_bucket": "2023-11-07T05:31:56Z",
      "direction": "inbound",
      "sent": 123,
      "delivered": 123,
      "bounced": 123,
      "failed": 123,
      "suppressed": 123
    }
  ]
}