public function getExpirationTag() : string
    {
        // An approximate, quick-to-compute rule that will force renewing the cache if a controller is added are a parameter is fetched.
        return implode('-/-', $this->controllers).($this->controllerDetector !== null ? $this->controllerDetector->getExpirationTag() : '');
    }
public function getExpirationTag() : string
    {
        // An approximate, quick-to-compute rule that will force renewing the cache if a controller is added are a parameter is fetched.
        return implode('-/-', $this->controllers).($this->controllerDetector !== null ? $this->controllerDetector->getExpirationTag() : '');
    }
public function getExpirationTag ( ) : string { // An approximate, quick-to-compute rule that will force renewing the cache if a controller is added are a parameter is fetched. return implode ( '-/-' , $ this -> controllers ) . ( $ this -> controllerDetector !== null ? $ this -> controllerDetector -> getExpirationTag ( ) : '' ) ; }
Returns a unique tag representing the list of SplashRoutes returned.
If the tag changes, the cache is flushed by Splash.

Important! This must be quick to compute.
Returns a unique tag representing the list of SplashRoutes returned . If the tag changes the cache is flushed by Splash .