code: def find_usage(self):
          
          logger.debug("Checking usage for service %s", self.service_name)
          for lim in self.limits.values():
              lim._reset_usage()
          try:
              self.connect()
              resp = self.conn.get_send_quota()
          except EndpointConnectionError as ex:
              logger.warning('Skipping SES: %s', str(ex))
              return
          except ClientError as ex:
              if ex.response['Error']['Code'] in ['AccessDenied', '503']:
                  logger.warning('Skipping SES: %s', ex)
                  return
              raise
          self.limits['Daily sending quota']._add_current_usage(
              resp['SentLast24Hours']
          )
          self._have_usage = True
          logger.debug("Done checking usage.")
docs: Determine the current usage for each limit of this service,
          and update corresponding Limit via
          :py:meth:`~.AwsLimit._add_current_usage`.