Zend\Stratigility\Http\Request::withAttribute PHP Method

    public function withAttribute($attribute, $value)
    {
        $new = $this->psrRequest->withAttribute($attribute, $value);
        return new self($new, $this->originalRequest);
    }

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