This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
| Card |
Base class for rich cards that can be sent to a user as an Attachment. Each concrete card implements to_attachment to wrap itself in an attachment using its own content type. to_message builds on that to produce a ready-to-send message activity. |