https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Cache%21Context%21ProtocolVersionCacheContext.php/function/ProtocolVersionCacheContext%3A%3AgetLabel/11.x
function ProtocolVersionCacheContext::getLabel | Drupal API
functiongetlabeldrupalapi
https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Cache%21Context%21ProtocolVersionCacheContext.php/class/ProtocolVersionCacheContext/9
class ProtocolVersionCacheContext | Drupal API
classdrupalapi