Description

Hi,

in #49518 i realized we have 2 ways of handling null as a controller result

1. json encode as null + http 200
2. no content + http 204

i figured having a controller utility builtin creates better autocompletion due the use of $this->... already

considering #49518, this allows doing:

#[Serialize(201)]
endpoint(): mixed {
    if ($someSpecialCase) {
        return $this->noContent(); // 204
    }

    return $someOtherSpecialCase ? ['data' => true] : null; // 201
}

Example

No response