private function getParams(array $params)
    {
        $result = [];
        foreach ($params as $name => $item) {
            $value = $item['value'];
            if ('collection' === $item['type']) {
                $value = $this->getParams($value);
            }

            $result[$name] = new PropertyParameter($name, $value, $item['type']);
        }

        return $result;
    }