Problem

Currently it is possible for other extensions to get the document (or it's copy - by default) if there is a collaborative session for it. However, it is not currently possible to create the document room when it does not exist. This would be useful to allow server-side execution for notebooks which are not currently open (e.g. user clicks from context menu in the file browser on the notebook and chooses to execute it).

Proposed Solution

Add a new public API for creating the notebook. This could be as simple as a new argument to the existing get_document, a boolean create which would default to false.

Additional context