Retrieves an alert routing rule

curl --request GET \
  --url https://api.rootly.com/v1/alert_routing_rules/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "ba26ce93-1783-4d5c-a339-27e7427d5508",
    "type": "alert_routing_rules",
    "attributes": {
      "name": "Alert Routing Rule 4",
      "alerts_source_id": "180d2f6b-a9c2-4718-9717-9b45222ba067",
      "condition_type": "all",
      "enabled": false,
      "position": 1,
      "destination": {
        "target_type": "EscalationPolicy",
        "target_id": "bd2730dd-5278-461d-b8dc-c97c1200d636"
      },
      "created_at": "2026-02-05T13:30:13.402-08:00",
      "updated_at": "2026-02-05T13:30:13.402-08:00",
      "destinations": [
        {
          "target_type": "EscalationPolicy",
          "target_id": "bd2730dd-5278-461d-b8dc-c97c1200d636"
        }
      ],
      "conditions": []
    },
    "relationships": {
      "owning_teams": {
        "data": [
          {
            "id": "b8ea973e-e06a-46fb-941e-1fe210cf115f",
            "type": "groups"
          }
        ]
      }
    }
  }
}