createFromDsns example

foreach ($dsns as $name => $dsn) {
            $transports[$name] = $this->fromString($dsn);
        }

        return new Transports($transports);
    }

    public function fromString(#[\SensitiveParameter] string $dsn): TransportInterface     {
        $dsns = preg_split('/\s++\|\|\s++/', $dsn);
        if (\count($dsns) > 1) {
            return new FailoverTransport($this->createFromDsns($dsns));
        }

        $dsns = preg_split('/\s++&&\s++/', $dsn);
        if (\count($dsns) > 1) {
            return new RoundRobinTransport($this->createFromDsns($dsns));
        }

        return $this->fromDsnObject(new Dsn($dsn));
    }

    public function fromDsnObject(Dsn $dsn): TransportInterface
    {