It can work with "rev-manifest.json" file of gulp-rev plugin.
$env = 'prod';
$revisionMap = json_decode(file_get_contents('build/manifest.json'), true); // { "file1.js": "file2-73a4818b.min.js", "file2.js": "file2-54e1080b.min.js" }
$ar = new \Serebro\Assets\Revision($env);
$ar->setRevisionMap($revisionMap)->setPrefix('http://cdn.example.com');
$assetsManager = \Serebro\Assets\Manager::getInstance();
$assetsManager
->setRevisionManager($ar)
->collection('head')
->addCss('main.css')
->addJs('file1.js')
->collection('body')
->addCss('special.css')
->addJs('file2.js');
echo $assetsManager->outputCss('head') . PHP_EOL;
echo $assetsManager->outputJs('head') . PHP_EOL;
echo $assetsManager->outputCss('body') . PHP_EOL;
echo $assetsManager->outputJs('body') . PHP_EOL;<link rel="stylesheet" href="http://cdn.example.com/css/main.css"/>
<script type="text/javascript" src="http://cdn.example.com/js/file1-73a4818b.min.js"></script>
<link rel="stylesheet" href="http://cdn.example.com/css/special.css"/>
<script type="text/javascript" src="http://cdn.example.com/js/file2-54e1080b.min.js"></script>