curl --request GET \
  --url https://app.herondata.io/api/analytics/decline \
  --header 'x-api-key: <api-key>'

{
  "check_analytics": [
    {
      "check_name": "<string>",
      "total_failed": 123,
      "total_missing_data": 123,
      "total_passed": 123
    }
  ],
  "total_declined": 123,
  "total_end_users": 123
}