https://api.drupal.org/api/drupal/core%21modules%21help_topics%21src%21HelpTopicPluginBase.php/function/HelpTopicPluginBase%3A%3AisTopLevel/8.9.x
function HelpTopicPluginBase::isTopLevel | Drupal API
functiondrupalapi
https://api.drupal.org/api/drupal/core%21modules%21help_topics%21src%21HelpTopicPluginBase.php/function/HelpTopicPluginBase%3A%3AgetLabel/8.9.x
function HelpTopicPluginBase::getLabel | Drupal API
functiongetlabeldrupalapi