Hello,

The interruption of a session through the Metadata Adapter interface is a new feature that will be introduced by Server version 7.1.
The public release of Server version 7.1 is planned for the near future, but no ETA has been established yet.

For now, the interruption of a session can be operated from the Metadata Adapter (or any node in your back-end where the session ID is known) in an indirect way. See this post for a discussion with details.
Unfortunately, there are various alternatives, depending on the Server version, edition and license in use. If you are running a 7.0 Server in Community edition, you can refer to the Presto case.