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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:
 async def _on_report_notification(self, event):
 """Callback function called when a report event is received. Args: event (dict):
 The report_event """


        conn_string = event.get('connection_string')
        report = self._report_parser.deserialize_report(event.get('serialized_report'))

        self.notify_event(conn_string, 'report', report)