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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 show_status(self):
 """Show status of unregistered migrations"""

        if not self.check_directory():
            return

        migrations = self.get_unregistered_migrations()
        if migrations:
            logger.info('Unregistered migrations:')
            for migration in migrations:
                logger.info(migration.filename)
        else:
            logger.info(self.NO_MIGRATIONS_MSG)