code: def _get_limits_networking(self):
          
          limits = {}
          limits['Security groups per VPC'] = AwsLimit(
              'Security groups per VPC',
              self,
              500,
              self.warning_threshold,
              self.critical_threshold,
              limit_type='AWS::EC2::SecurityGroup',
              limit_subtype='AWS::EC2::VPC',
          )
          limits['Rules per VPC security group'] = AwsLimit(
              'Rules per VPC security group',
              self,
              50,
              self.warning_threshold,
              self.critical_threshold,
              limit_type='AWS::EC2::SecurityGroup',
              limit_subtype='AWS::EC2::VPC',
          )
          limits['VPC Elastic IP addresses (EIPs)'] = AwsLimit(
              'VPC Elastic IP addresses (EIPs)',
              self,
              5,
              self.warning_threshold,
              self.critical_threshold,
              limit_type='AWS::EC2::EIP',
              limit_subtype='AWS::EC2::VPC',
              ta_service_name='VPC'  # TA shows this as VPC not EC2
          )
          # the EC2 limits screen calls this 'EC2-Classic Elastic IPs'
          # but Trusted Advisor just calls it 'Elastic IP addresses (EIPs)'
          limits['Elastic IP addresses (EIPs)'] = AwsLimit(
              'Elastic IP addresses (EIPs)',
              self,
              5,
              self.warning_threshold,
              self.critical_threshold,
              limit_type='AWS::EC2::EIP',
          )
          limits['VPC security groups per elastic network interface'] = AwsLimit(
              'VPC security groups per elastic network interface',
              self,
              5,
              self.warning_threshold,
              self.critical_threshold,
              limit_type='AWS::EC2::SecurityGroup',
              limit_subtype='AWS::EC2::NetworkInterface',
          )
          return limits
docs: Return a dict of VPC-related limits only.
          This method should only be used internally by
          :py:meth:~.get_limits`.
  
          :rtype: dict