*
* @deprecated in Drupal 8.3.x, will be removed before Drupal 9.0.0.
* Use \Drupal\Core\Block\BlockPluginInterface::BLOCK_LABEL_VISIBLE.
+ *
+ * @see https://www.drupal.org/node/2829775
*/
const BLOCK_LABEL_VISIBLE = BlockPluginInterface::BLOCK_LABEL_VISIBLE;