https://api.drupal.org/api/drupal/core%21modules%21help_topics%21tests%21src%21Unit%21HelpTopicTwigLoaderTest.php/function/HelpTopicTwigLoaderTest%3A%3AgetHandlerMock/8.9.x
function HelpTopicTwigLoaderTest::getHandlerMock | Drupal API
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