Zend\Stratigility\Http\Response::withProtocolVersion PHP Method

    public function withProtocolVersion($version)
    {
        $new = $this->psrResponse->withProtocolVersion($version);
        return new self($new);
    }

 /**
  * {@inheritDoc}
  */
 public function withProtocolVersion($version)
 {
     return new self($this->app, parent::withProtocolVersion($version));
 }