public function getParameterDescription(ReflectionParameter $param): ?string
    {
        $name = preg_quote($param->getName());

        if (preg_match('~@param\h+\H+\h+\$' . $name . '\h+(.*)~', $this->comment, $m)) {
            return ucfirst(trim($m[1]));
        }

        return null;
    }