All classes that implement DumperInterface

class \Symfony\Component\DependencyInjection\Dumper\Dumper implements DumperInterface
class \Symfony\Component\DependencyInjection\Dumper\GraphvizDumper
class \Symfony\Component\DependencyInjection\Dumper\PhpDumper
class \Symfony\Component\DependencyInjection\Dumper\XmlDumper
class \Symfony\Component\DependencyInjection\Dumper\YamlDumper