curl --request GET \
  --url https://api.{tenant}.getomneo.com/api/v3/appointment-definitions/{appointmentDefinition}/questions

{
  "data": {
    "questionnaire": {
      "id": "<string>",
      "name": "<string>",
      "purpose": "<string>"
    },
    "questions": [
      "<unknown>"
    ]
  }
}