Retrieves an incident event functionality

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

{
  "data": {
    "id": "368b1dc0-a306-4d8f-944a-44389c6c4c3b",
    "type": "incident_event_functionalities",
    "attributes": {
      "incident_event_id": "73e2aeb3-9ff3-4f83-8ef0-fbbc8b90fe9b",
      "functionality_id": "93cfa4db-209e-4dd5-9e19-2b2eeea2fac4",
      "status": "partial_outage"
    }
  }
}