ContentEntityFormInterface

class \Drupal\Core\Entity\ContentEntityConfirmFormBase implements \Drupal\Core\Form\ConfirmFormInterface extends \Drupal\Core\Entity\ContentEntityForm
class \Drupal\Core\Entity\ContentEntityDeleteForm uses \Drupal\Core\Entity\EntityDeleteFormTrait extends \Drupal\Core\Entity\ContentEntityConfirmFormBase
class \Drupal\Core\Entity\ContentEntityForm implements \Drupal\Core\Entity\ContentEntityFormInterface extends \Drupal\Core\Entity\EntityForm
class \Drupal\book\Form\BookOutlineForm extends \Drupal\Core\Entity\ContentEntityForm
class \Drupal\content_entity_example\Form\ContactDeleteForm extends \Drupal\Core\Entity\ContentEntityConfirmFormBase
class \Drupal\content_entity_example\Form\ContactForm extends \Drupal\Core\Entity\ContentEntityForm
class \Drupal\taxonomy\Form\TermDeleteForm extends \Drupal\Core\Entity\ContentEntityDeleteForm
class \Drupal\taxonomy\TermForm extends \Drupal\Core\Entity\ContentEntityForm
class \Drupal\user\AccountForm implements \Drupal\Core\Security\TrustedCallbackInterface extends \Drupal\Core\Entity\ContentEntityForm
class \Drupal\user\Form\UserCancelForm extends \Drupal\Core\Entity\ContentEntityConfirmFormBase
class \Drupal\user\ProfileForm extends \Drupal\user\AccountForm
class \Drupal\user\RegisterForm extends \Drupal\user\AccountForm

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