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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 configure_logging(self, verbosity_lvl=None, format='%(message)s'):
 """Switches on logging at a given level. :param verbosity_lvl: :param format: """

        if not verbosity_lvl:
            verbosity_lvl = logging.INFO
        logging.basicConfig(format=format)
        self.logger.setLevel(verbosity_lvl)