https://api.drupal.org/api/drupal/core%21modules%21field_ui%21src%21EntityDisplayModeListBuilder.php/property/EntityDisplayModeListBuilder%3A%3AentityTypes/8.9.x
EntityDisplayModeListBuilder::$entityTypes | Drupal API
drupalapi
https://api.drupal.org/api/drupal/core%21modules%21field_ui%21src%21EntityDisplayModeListBuilder.php/10
EntityDisplayModeListBuilder.php | Drupal API
phpdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21field_ui%21src%21EntityDisplayModeListBuilder.php/function/EntityDisplayModeListBuilder%3A%3AisValidEntity/8.9.x
function EntityDisplayModeListBuilder::isValidEntity | Drupal API
functiondrupalapi