Retrieves an escalation level

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

{
  "data": {
    "id": "0b1d04e3-0d0f-4649-94ea-bae3d243488b",
    "type": "escalation_levels",
    "attributes": {
      "escalation_policy_path_id": null,
      "position": 1,
      "delay": 5,
      "escalation_policy_id": "52356e3c-89b0-4f2b-a96d-48c1c1f4765f",
      "paging_strategy_configuration_strategy": null,
      "paging_strategy_configuration_schedule_strategy": null,
      "created_at": "2025-08-21T23:31:21.694-07:00",
      "updated_at": "2025-08-21T23:31:21.694-07:00",
      "notification_target_params": [
        {
          "id": "117",
          "type": "user",
          "team_members": "all"
        }
      ]
    }
  }
}