All classes that implement CKEditorPluginButtonsInterface in Drupal 10

class \Drupal\ckeditor\CKEditorPluginBase implements CKEditorPluginButtonsInterface, CKEditorPluginInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\DrupalImage implements CKEditorPluginConfigurableInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\DrupalLink
class \Drupal\ckeditor\Plugin\CKEditorPlugin\DrupalMediaLibrary implements ContainerFactoryPluginInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\Internal implements CKEditorPluginContextualInterface, ContainerFactoryPluginInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\Language implements CKEditorPluginConfigurableInterface, CKEditorPluginCssInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\StylesCombo implements CKEditorPluginConfigurableInterface
class \Drupal\ckeditor_test\Plugin\CKEditorPlugin\LlamaButton extends \Drupal\ckeditor_test\Plugin\CKEditorPlugin\Llama implements CKEditorPluginButtonsInterface
class \Drupal\ckeditor_test\Plugin\CKEditorPlugin\LlamaContextualAndButton extends \Drupal\ckeditor_test\Plugin\CKEditorPlugin\Llama implements CKEditorPluginButtonsInterface, CKEditorPluginConfigurableInterface, CKEditorPluginContextualInterface
class \Drupal\ckeditor_test\Plugin\CKEditorPlugin\LlamaCss extends \Drupal\ckeditor_test\Plugin\CKEditorPlugin\Llama implements CKEditorPluginButtonsInterface, CKEditorPluginCssInterface

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