How to edit file name Google Drive Rest Api (PHP)

I'm updating the file name, I've tried every v2, v3 Google Drive patch request.

        $client = new \Google_Client();
        $client->setAccessToken($user->oauth_token);
        $service = new \Google_Service_Drive($client);
        $file = new \Google_Service_Drive_DriveFile();
        $fileId = $request->id;
        $title = $request->file;
        $service->files->update($fileId, $file, array(
            'title' => $title,
            'mimeType' => 'application/pdf',
            'uploadType' => 'multipart'
        )); 

This is my code I don't know what are there main issues. Please correct if I'm doing it in wrong way

via Chebli Mohamed