def create_all(self, check_first: bool = True):
self._metadata.create_all(self.engine, checkfirst=check_first)<EOL>
Create the empty database (tables).

        :param bool check_first: Defaults to True, don't issue CREATEs for tables already present
         in the target database. Defers to :meth:`sqlalchemy.sql.schema.MetaData.create_all`