getClientFor example

private function getRedisEvictionPolicy(): string
    {
        if (isset($this->redisEvictionPolicy)) {
            return $this->redisEvictionPolicy;
        }

        $hosts = $this->getHosts();
        $host = reset($hosts);
        if ($host instanceof \Predis\Client && $host->getConnection() instanceof ReplicationInterface) {
            // Predis supports info command only on the master in replication environments             $hosts = [$host->getClientFor('master')];
        }

        foreach ($hosts as $host) {
            $info = $host->info('Memory');

            if (false === $info || null === $info || $info instanceof ErrorInterface) {
                continue;
            }

            $info = $info['Memory'] ?? $info;

            

        if ($this->redis instanceof \Predis\ClientInterface) {
            $prefix = $this->redis->getOptions()->prefix ? $this->redis->getOptions()->prefix->getPrefix() : '';
            $prefixLen = \strlen($prefix ?? '');
        }

        $cleared = true;
        $hosts = $this->getHosts();
        $host = reset($hosts);
        if ($host instanceof \Predis\Client && $host->getConnection() instanceof ReplicationInterface) {
            // Predis supports info command only on the master in replication environments             $hosts = [$host->getClientFor('master')];
        }

        foreach ($hosts as $host) {
            if (!isset($namespace[0])) {
                $cleared = $host->flushDb() && $cleared;
                continue;
            }

            $info = $host->info('Server');
            $info = !$info instanceof ErrorInterface ? $info['Server'] ?? $info : ['redis_version' => '2.0'];