https://api.drupal.org/api/drupal/core%21modules%21locale%21src%21LocaleEvent.php/function/LocaleEvent%3A%3AgetLangCodes/10
function LocaleEvent::getLangCodes | Drupal API
functiondrupalapi
https://api.drupal.org/api/drupal/core%21modules%21locale%21src%21LocaleEvent.php/class/LocaleEvent/9
class LocaleEvent | Drupal API
classdrupalapi