Support for No Content Responses

[ffa-grahamdawes]

It's not clear from the documentation how to mark as a response as No Content. e.g.

info->addResponse<WhichTypeGoesHere>(Status::CODE_204, "what-value-goes-here?");

Is there a different way to specify "No Content" response? If so, perhaps the examples or the docs could be updated to include this? If not, would it be possible add an enhancement request to support this?

Thanks