code: def enable_sns_notification(self, region, trailName):
          
          ct = self.session.client('cloudtrail', region_name=region)
          ct.update_trail(Name=trailName, SnsTopicName=self.topic_name)
  
          auditlog(
              event='cloudtrail.enable_sns_notification',
              actor=self.ns,
              data={
                  'account': self.account.account_name,
                  'region': region
              }
          )
          self.log.info('Enabled SNS notifications for trail {} in {}/{}'.format(
              trailName,
              self.account.account_name,
              region
          ))
docs: Enable SNS notifications for a Trail
  
          Args:
              region (`str`): Name of the AWS region
              trailName (`str`): Name of the CloudTrail Trail
  
          Returns:
              `None`