public function get($environment = null, $website_id = null)
    {
        $groups = ConfigModel::fetchAllGroups();
        $result = [];

        foreach ($groups as $group) {
            $groupConfig = ConfigModel::fetchExactSettings($environment, $website_id, $group);
            foreach ($groupConfig as $key => $value) {
                $result[$group . '.' . $key] = $value;
            }
        }

        return $result;
    }