public function send(array $args = array()) {
        if (!$args || !array_key_exists(0, $args) || empty($args[0])) {
            Garp_Cli::errorOut(self::ERROR_EMPTY_SEND);
            return false;
        }

        $slack = new Garp_Service_Slack();
        return $slack->postMessage($args[0]);
    }