https://api.drupal.org/api/drupal/core%21modules%21update%21src%21Form%21UpdateManagerUpdate.php/property/UpdateManagerUpdate%3A%3AmoduleHandler/10
UpdateManagerUpdate::$moduleHandler | Drupal API
drupalapi
https://api.drupal.org/api/drupal/core%21modules%21update%21src%21Form%21UpdateManagerUpdate.php/function/UpdateManagerUpdate%3A%3AbuildForm/8.9.x
function UpdateManagerUpdate::buildForm | Drupal API
functionbuildformdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21update%21src%21Form%21UpdateManagerUpdate.php/9
UpdateManagerUpdate.php | Drupal API
phpdrupalapi