{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://api.ilert.com/schemas/NotificationPreferenceDutyMethod",
  "title": "NotificationPreferenceDutyMethod",
  "type": "string",
  "enum": [
    "EMAIL",
    "SMS",
    "PUSH",
    "WHATSAPP",
    "TELEGRAM"
  ]
}