Kraken\Channel\Channel::sendAsync PHP Method

    public function sendAsync($name, $message, $flags = Channel::MODE_DEFAULT)
    {
        $protocol = $this->createMessageProtocol($message);
        $names = (array) $name;
        $handlers = [];
        foreach ($names as $name) {
            $handlers[] = $this->handleSendAsync($name, $protocol, $flags);
        }
        return !isset($handlers[0]) || isset($handlers[1]) ? $handlers : $handlers[0];
    }