// Recent version of the extension already expose internal properties
        if (isset($a["\x00AMQPConnection\x00login"])) {
            $a += [
                Caster::PREFIX_VIRTUAL.'isConnected' => $c->isConnected(),
            ];

            return $a;
        }

        $prefix = Caster::PREFIX_VIRTUAL;

        // BC layer in the amqp lib
        if (method_exists($c, 'getReadTimeout')) {
            $timeout = $c->getReadTimeout();
        } else {
            $timeout = $c->getTimeout();
        }

        $a += array(
            $prefix.'isConnected' => $c->isConnected(),
            $prefix.'login' => $c->getLogin(),
            $prefix.'password' => $c->getPassword(),
            $prefix.'host' => $c->getHost(),
            $prefix.'vhost' => $c->getVhost(),
            $prefix.'port' => $c->getPort(),
            $prefix.'read_timeout' => $timeout,
        );

        return $a;