Retrieves an escalation policy

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

{
  "data": {
    "id": "13d2b79e-1a78-4a62-b5fc-bb25f6dd25a9",
    "type": "escalation_policies",
    "attributes": {
      "name": "Sit aliquam dolor voluptate.",
      "description": null,
      "repeat_count": 1,
      "created_by_user_id": 132,
      "last_updated_by_user_id": 133,
      "group_ids": [
        "1c6f4e52-8180-4b79-b377-06de8d7663e3"
      ],
      "service_ids": [],
      "business_hours": {
        "time_zone": null,
        "days": [
          "F",
          "M",
          "T",
          "R",
          "W"
        ],
        "start_time": "09:00",
        "end_time": "17:00"
      },
      "created_at": "2025-11-28T18:08:28.069-08:00",
      "updated_at": "2025-11-28T18:08:28.069-08:00"
    },
    "relationships": {
      "escalation_levels": {
        "data": [
          {
            "id": "b7c80acb-729e-4abe-bdd5-aca2fcdaf08c",
            "type": "escalation_levels"
          }
        ]
      },
      "escalation_paths": {
        "data": []
      },
      "groups": {
        "data": [
          {
            "id": "1c6f4e52-8180-4b79-b377-06de8d7663e3",
            "type": "groups"
          }
        ]
      },
      "services": {
        "data": []
      }
    }
  }
}