public function get($key)
    {
        $keys = explode('::', $key);
        if (\count($keys) >= 2) {
            $section = $keys[0];
            $option = $keys[1];
        } else {
            $section = self::DEFAULT_SECTION;
            $option = $keys[0];
        }

        return isset($this->data[$section][$option]) ? $this->data[$section][$option] : '';
    }