Babelfish backup and restore of SQL Server databases.

Given that Babelfish creates the babelfish_db and the sql server databases are represented as schemas such as dbname_schema when in multi-db mode.

What is the recommendation to perform backup and restore of SQL Server databases? I'm not looking for backup and restore options of Aurora Postgresql. I would like to backup and restore databases as if they were SQL Server databases, which in Aurora Postgresql is represented as schemas of babelfish_db.