Newer versions of the library seem to have lost the easy support for loading Datastore/Firestore backups #933
Description
In older versions there was an import method on the Table object that could be used for this purpose. The new methods load and createLoadJob don't seem to support the DATASTORE_BACKUP format.
Is manually creating a Job the only way to do this via the API now? Could the load and createLoadJob methods be updated to support datastore/firestore backups?