# File lib/fog/aws/parsers/compute/describe_instance_attribute.rb, line 23
          def start_element(name, attrs = [])
            super
            case name
            when 'instanceType'
              @in_instanceType   = true
            when 'kernel'
              @in_kernel = true
            when 'ramdisk'
              @in_ramdisk = true
            when 'userData'
              @in_userData = true
            when 'disableApiTermination'
              @in_disableApiTermination = true
            when 'instanceInitiatedShutdownBehavior'
              @in_instanceInitiatedShutdownBehavior = true
            when 'rootDeviceName'
              @in_rootDeviceName = true
            when 'blockDeviceMapping'
              @in_blockDeviceMapping = true
              @block_device_mapping = {}
              unless @response.key?('blockDeviceMapping')
                @response['blockDeviceMapping'] = []
              end
            when 'productCodes'
              @in_productCodes = true
              unless @response.key?('productCodes')
                @response['productCodes'] = []
              end
            when 'ebsOptimized'
              @in_ebsOptimized = true
            when 'sriovNetSupport'
              @in_sriovNetSupport = true
            when 'sourceDestCheck'
              @in_sourceDestCheck = true
            when 'groupSet'
              @in_groupSet = true
              @group = {}
              unless @response.key?('groupSet')
                @response['groupSet'] = []
              end
            end
          end