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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 print_event_statistics(self):
 """Print the number of events in the REACH output by type."""

        logger.info('All events by type')
        logger.info('-------------------')
        for k, v in self.all_events.items():
            logger.info('%s, %s' % (k, len(v)))
        logger.info('-------------------')