https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21PageCache%21ChainRequestPolicy.php/function/ChainRequestPolicy%3A%3Acheck/8.9.x
function ChainRequestPolicy::check | Drupal API
functioncheckdrupalapi
https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21PageCache%21ChainRequestPolicy.php/class/ChainRequestPolicy/10
class ChainRequestPolicy | Drupal API
classdrupalapi