post https://elastic.messangi.me/balerion/v2/whatsapp/templates/
WhatsApp media message templates expand the content you can send recipients beyond the standard message template type to include these features: headers, components and buttons, and personalized fields (placeholders) that provide additional information.
If you want to create the media message template via Templates API, you need to provide the WhatsApp Business Account ID (WABA) or the unique identifier of the sender.
To know how to create a media message template go to the Creating & Sending WhatsApp Text Message Template section.