code: public function add($blockFile, $blockContent)
      {
          $this->removeBlock($blockFile);
          $blockPermalinks = $this->fetchPermalinksFromBlock($blockContent, $blockFile);
          if (!empty($blockPermalinks)) {
              $this->permalinks = array_merge_recursive($this->permalinks, $blockPermalinks);
          }
  
          return $this;
      }
docs: Adds a block to permalinks list
  
  @param string $blockFile
  @param string $blockContent
  
  @return $this