Retrieves a Retrospective Template

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

{
  "data": {
    "id": "b4267d09-164f-46a4-b416-489d382f144d",
    "type": "post_mortem_templates",
    "attributes": {
      "name": "Nihil perferendis voluptatem error.",
      "slug": "nihil-perferendis-voluptatem-error",
      "format": "html",
      "default": false,
      "content": "",
      "created_at": "2025-11-03T16:52:31.834-08:00",
      "updated_at": "2025-11-03T16:52:31.841-08:00"
    }
  }
}