Creates an escalation level for an Escalation Path

curl --request POST \
  --url https://api.rootly.com/v1/escalation_paths/{escalation_policy_path_id}/escalation_levels \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "type": "escalation_levels",
    "attributes": {
      "position": 123,
      "notification_target_params": [
        {
          "id": "<string>",
          "type": "team",
          "team_members": "all"
        }
      ],
      "delay": 123,
      "paging_strategy_configuration_strategy": "default",
      "paging_strategy_configuration_schedule_strategy": "on_call_only",
      "escalation_policy_path_id": "<string>"
    }
  }
}
'

{
  "data": {
    "id": "5ca77e6d-9300-466d-8868-1dc85f2282f4",
    "type": "escalation_levels",
    "attributes": {
      "escalation_policy_path_id": "46193e0e-47ca-480f-bbe6-ea9097ea5a64",
      "position": 2,
      "delay": 2,
      "escalation_policy_id": "d931296b-b965-4a23-88c3-06b689f0dadf",
      "paging_strategy_configuration_strategy": null,
      "paging_strategy_configuration_schedule_strategy": null,
      "created_at": "2026-01-06T20:02:22.593-08:00",
      "updated_at": "2026-01-06T20:02:22.593-08:00",
      "notification_target_params": [
        {
          "id": "161",
          "type": "user",
          "team_members": "all"
        },
        {
          "id": "461356bf-7d46-45c2-960e-81a857a74123",
          "type": "schedule",
          "team_members": "all"
        },
        {
          "id": "CX21345",
          "type": "slack_channel",
          "team_members": "all"
        }
      ]
    }
  }
}