All classes that implement BreadcrumbBuilderInterface in Drupal 10
- class \Drupal\forum\Breadcrumb\ForumBreadcrumbBuilderBase implements BreadcrumbBuilderInterface uses StringTranslationTrait
- class \Drupal\forum\Breadcrumb\ForumListingBreadcrumbBuilder
- class \Drupal\forum\Breadcrumb\ForumNodeBreadcrumbBuilder