The language manager. Type:

block_content_add_body_field($block_type_id, $label = 'Body') Adds the default body field to a custom block

public BlockContentViewsData::getViewsData()

public BlockContentInterface::setRevisionL

Base form for category edit forms. Hierarchy class \Drupal\Core\Form\

public BlockContentInterface::setTheme($theme)

public BlockContentInterface::getTheme()

public BlockContentForm::__construct(EntityManagerInterface