Internal Optional modeDefines how the content in the embed item is displayed on the board. inline: The embedded content is displayed directly on the board. modal: The embedded content is displayed inside a modal overlay on the board.
Optional previewURL of the image to be used as the preview image for the embedded item.
A valid URL pointing to the content resource that you want to embed in the board. Possible transport protocols: HTTP, HTTPS.
Contains information about the embed URL.