SurrogateInterface

class \Symfony\Component\HttpKernel\HttpCache\AbstractSurrogate implements \Symfony\Component\HttpKernel\HttpCache\SurrogateInterface
class \Symfony\Component\HttpKernel\HttpCache\Esi extends \Symfony\Component\HttpKernel\HttpCache\AbstractSurrogate
class \Symfony\Component\HttpKernel\HttpCache\Ssi extends \Symfony\Component\HttpKernel\HttpCache\AbstractSurrogate