https://api.drupal.org/api/drupal/core%21modules%21comment%21tests%21src%21Functional%21CommentPagerTest.php/property/CommentPagerTest%3A%3AdefaultTheme/11.x
CommentPagerTest::$defaultTheme | Drupal API
drupalapi
https://api.drupal.org/api/drupal/core%21modules%21comment%21tests%21src%21Functional%21CommentPagerTest.php/9
CommentPagerTest.php | Drupal API
phpdrupalapi