*
* @deprecated in Drupal 8.3.x, will be removed before Drupal 9.0.0.
* Use \Drupal\Core\Block\BlockPluginInterface::BLOCK_LABEL_VISIBLE.
*
* @deprecated in Drupal 8.3.x, will be removed before Drupal 9.0.0.
* Use \Drupal\Core\Block\BlockPluginInterface::BLOCK_LABEL_VISIBLE.