    # File lib/fog/aws/requests/compute/create_image.rb, line 42
            def create_image(instance_id, name, description, no_reboot = false)
              response = Excon::Response.new
              if instance_id && !name.empty?
                response.status = 200
                response.body = {
                  'requestId' => Fog::AWS::Mock.request_id,
                  'imageId' => Fog::AWS::Mock.image_id
                }
              else
                response.status = 400
                response.body = {
                  'Code' => 'InvalidParameterValue'
                }
                if name.empty?
                  response.body['Message'] = "Invalid value '' for name. Must be specified."
                end
              end
              response
            end