| Name | Type | Description | Notes |
|---|---|---|---|
| author | Author | The author of the message. | |
| content | Content | The content of the message. | |
| destination | Destination | [optional] | |
| metadata | object | Flat object containing custom properties. Strings, numbers and booleans are the only supported format that can be passed to metadata. The metadata is limited to 4KB in size. | [optional] |
| override | MessageOverride | [optional] | |
| schema | str | When `schema` is set to `"whatsapp"`, the `content` key is expected to conform to the native WhatsApp schema for sending message templates. For more details, consult the documentation for sending message templates on WhatsApp. | [optional] |