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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def table_drop(self):
 """Drops all tables. """

        for engine in self.engines():
            tables = self._get_tables(engine, create_drop=True)
            logger.info('Drop all tables for %s', engine)
            self.metadata.drop_all(engine, tables=tables)