public function get($account, array $filters = array())
    {
        // Default: fetch groups list
        $endpoint = sprintf('groups/%s/', $account);

        if (!empty($filters)) {
            $endpoint = 'groups';

            if (isset($filters['group']) && is_array($filters['group'])) {
                $filters['group'] = implode('&group=', $filters['group']);
            }
        }

        return $this->requestGet($endpoint, $filters);
    }