# File lib/fog/aws/requests/compute/describe_instance_attribute.rb, line 55
        def describe_instance_attribute(instance_id, attribute)
          response = Excon::Response.new
          if instance = self.data[:instances].values.find{ |i| i['instanceId'] == instance_id }
            response.status = 200
            response.body = {
              'requestId' => Fog::AWS::Mock.request_id,
              'instanceId'     => instance_id
            }
            case attribute
            when 'kernel'
              response.body[attribute] = instance["kernelId"]
            when 'ramdisk'
              response.body[attribute] = instance["ramdiskId"]
            when 'disableApiTermination'
              response.body[attribute] = false
            when 'instanceInitiatedShutdownBehavior'
              response.body['instanceInitiatedShutdownBehavior'] = 'stop'
            when 'sourceDestCheck'
              response.body[attribute] = true
            when 'sriovNetSupport'
              response.body[attribute] = 'simple'
            else
              response.body[attribute] = instance[attribute]
            end
          response
          else
            raise Fog::Compute::AWS::NotFound.new("The Instance '#{instance_id}' does not exist")
          end
        end