    # File lib/fog/aws/parsers/compute/describe_security_groups.rb, line 17
              def start_element(name, attrs = [])
                super
                case name
                when 'groups'
                  @in_groups = true
                when 'ipPermissions'
                  @in_ip_permissions = true
                when 'ipPermissionsEgress'
                  @in_ip_permissions_egress = true
                when 'ipRanges'
                  @in_ip_ranges = true
                end
              end