| Name | Type | Description | Notes |
|---|---|---|---|
| header_text | Option<Vec> | Sample values for header text variables | [optional] |
| header_handle | Option<Vec> | When the header format is a media type (image, video, gif, document), provide a public URL here. Zernio will download and upload it to WhatsApp on your behalf, replacing it with the internal file handle before creating the template. | [optional] |