Retrieves an escalation policy

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

{
  "data": {
    "id": "d67eb917-70ec-46a3-af45-32d974d58f31",
    "type": "escalation_policies",
    "attributes": {
      "name": "Quia autem corrupti exercitationem.",
      "description": null,
      "repeat_count": 1,
      "created_by_user_id": 103,
      "last_updated_by_user_id": 104,
      "group_ids": [
        "bc6e53ff-7a71-4dc1-adb5-c0121ef53b4d"
      ],
      "service_ids": [],
      "business_hours": {
        "time_zone": null,
        "days": [
          "F",
          "M",
          "T",
          "R",
          "W"
        ],
        "start_time": "09:00 AM",
        "end_time": "05:00 PM"
      },
      "created_at": "2025-09-17T17:45:54.408-07:00",
      "updated_at": "2025-09-17T17:45:54.408-07:00"
    },
    "relationships": {
      "escalation_levels": {
        "data": [
          {
            "id": "de8bc05e-db87-4c05-b79a-e991d0a1c0fa",
            "type": "escalation_levels"
          }
        ]
      },
      "escalation_paths": {
        "data": []
      },
      "groups": {
        "data": [
          {
            "id": "bc6e53ff-7a71-4dc1-adb5-c0121ef53b4d",
            "type": "groups"
          }
        ]
      },
      "services": {
        "data": []
      }
    }
  }
}