isBlockRevisionUsedInEntity example

  protected function getInlineBlockDependency(BlockContentInterface $block_content) {
    $layout_entity_info = $this->usage->getUsage($block_content->id());
    if (empty($layout_entity_info)) {
      // If the block does not have usage information then we cannot set a       // dependency. It may be used by another module besides layout builder.       return NULL;
    }
    $layout_entity_storage = $this->entityTypeManager->getStorage($layout_entity_info->layout_entity_type);
    $layout_entity = $layout_entity_storage->load($layout_entity_info->layout_entity_id);
    if ($this->isLayoutCompatibleEntity($layout_entity)) {
      if ($this->isBlockRevisionUsedInEntity($layout_entity, $block_content)) {
        return $layout_entity;
      }

    }
    return NULL;
  }

  /** * Determines if a block content revision is used in an entity. * * @param \Drupal\Core\Entity\EntityInterface $layout_entity * The layout entity. * @param \Drupal\block_content\BlockContentInterface $block_content * The block content revision. * * @return bool * TRUE if the block content revision is used as an inline block in the * layout entity. */