code: def get_limits(self):
          
          logger.debug("Gathering %s's limits from AWS", self.service_name)
  
          if self.limits:
              return self.limits
          limits = {}
  
          limits['Trails Per Region'] = AwsLimit(
              'Trails Per Region',
              self,
              5,
              self.warning_threshold,
              self.critical_threshold,
              limit_type=self.aws_type
          )
  
          limits['Event Selectors Per Trail'] = AwsLimit(
              'Event Selectors Per Trail',
              self,
              5,
              self.warning_threshold,
              self.critical_threshold,
              limit_type=self.aws_type,
              limit_subtype='AWS::CloudTrail::EventSelector'
          )
  
          limits['Data Resources Per Trail'] = AwsLimit(
              'Data Resources Per Trail',
              self,
              250,
              self.warning_threshold,
              self.critical_threshold,
              limit_type=self.aws_type,
              limit_subtype='AWS::CloudTrail::DataResource'
          )
  
          self.limits = limits
          return limits
docs: Return all known limits for this service, as a dict of their names
          to :py:class:`~.AwsLimit` objects.
  
          :returns: dict of limit names to :py:class:`~.AwsLimit` objects
          :rtype: dict