public function convert(Stmt\Unset_ $node)
    {
        $unset = '';
        foreach ($node->vars as $var) {
        	if ($var instanceof Expr\Variable) {
        		$unset .= 'let '.$this->dispatcher->p($var).' = null;'."\n";
        	} else {
            	$unset .= 'unset '.$this->dispatcher->p($var).';'."\n";
        	}
        }

        return $unset;
    }
public function convert(Stmt\Unset_ $node)
    {
        $unset = '';
        foreach ($node->vars as $var) {
        	if ($var instanceof Expr\Variable) {
        		$unset .= 'let '.$this->dispatcher->p($var).' = null;'."\n";
        	} else {
            	$unset .= 'unset '.$this->dispatcher->p($var).';'."\n";
        	}
        }

        return $unset;
    }
@param Stmt\Unset_ $node

@return string