The filetype for the message data. This is usually `html`. Since all CDN content is deduplicated by SHA hash, the file extension in the CDN URI may not match this type, especially when the message data is empty.
hrefstringrequired
Description
Kibo CDN URI to a file containing the message data. This attribute is always present, even if the content is smaller than 1024 bytes.
datastring
Description
The message data. This attribute is only present if the data is smaller than 1024 bytes.