query PreviewCalendarInviteTemplate($recipientType: String!, $title: String!, $description: String!) {
  previewCalendarInviteTemplate(recipientType: $recipientType, title: $title, description: $description) {
    when
    title
    location
    destination
    description
    availableFields {
      token
      name
      label
      kind
      group
      allowedIn
    }
  }
}

{
  "recipientType": "string",
  "title": "string",
  "description": "string"
}

{
  "data": {
    "previewCalendarInviteTemplate": {
      "when": "string",
      "title": "string",
      "location": "string",
      "destination": "string",
      "description": "string",
      "availableFields": [
        {
          "token": "string",
          "name": "string",
          "label": "string",
          "kind": "string",
          "group": "string",
          "allowedIn": [
            "string"
          ]
        }
      ]
    }
  }
}