The tracking and version objects are not being added to the new draft data when IDs are not set.

Seems like there was a similar issue with Nylas-NodeJS that had been resolved a month ago (link to the resolved issue here - https://githubmemory.com/repo/nylas/nylas-nodejs/issues/231)

Similar to the NodeJS issue above, I believe this is the line that needs to be updated for Python - https://github.com/nylas/nylas-python/blob/main/nylas/client/restful_models.py#L483