curl --request POST \
  --url 'https://{domain}/api/v2/network/reports/statistics-tree?api-key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "rangeFrom": "string",
  "rangeTo": "string",
  "page": 1,
  "perPage": 1,
  "columns": "string",
  "breakdown": "string",
  "breakdowns": "string"
}
'

{
  "message": "<string>",
  "rows": [
    {
      "traffic_source": {
        "id": 123,
        "value": "<string>"
      },
      "traffic_approach": {
        "id": 123,
        "value": "<string>"
      }
    }
  ],
  "totals": {}
}