    # File lib/fog/aws/requests/compute/stop_instances.rb, line 20
            def stop_instances(instance_id, force = false)
              params = Fog::AWS.indexed_param('InstanceId', instance_id)
              params.merge!('Force' => 'true') if force
              request({
                'Action'    => 'StopInstances',
                :idempotent => true,
                :parser     => Fog::Parsers::Compute::AWS::StartStopInstances.new
              }.merge!(params))
            end