docs: def validate_get_dbs(connection):
      """
      validates the connection object is capable of read access to rethink
  
      should be at least one test database by default
  
      :param connection: <rethinkdb.net.DefaultConnection>
      :return: <set> list of databases
      :raises: ReqlDriverError AssertionError
      """
      remote_dbs = set(rethinkdb.db_list().run(connection))
      assert remote_dbs
      return remote_dbs