# File lib/fog/aws/requests/compute/unmonitor_instances.rb, line 35
        def unmonitor_instances(instance_ids)
          response        = Excon::Response.new
          response.status = 200
          [*instance_ids].each do |instance_id|
            if instance = self.data[:instances][instance_id]
              instance['monitoring']['state'] = 'enabled'
            else
              raise Fog::Compute::AWS::NotFound.new("The instance ID '#{instance_ids}' does not exist")
            end
          end
          instances_set = [*instance_ids].inject([]) { |memo, id| memo << {'instanceId' => id, 'monitoring' => 'disabled'} }
          response.body = {'requestId' => 'some_request_id', 'instancesSet' => instances_set}
          response
        end