private function executeCommand(Server $server)
    {
        $cmd = [
            'createIndexes' => $this->collectionName,
            'indexes' => $this->indexes,
        ];

        if (isset($this->options['maxTimeMS'])) {
            $cmd['maxTimeMS'] = $this->options['maxTimeMS'];
        }

        $server->executeWriteCommand($this->databaseName, new Command($cmd), $this->createOptions());
    }