code: public function getLayoutUpdates()
      {
          if ($this->uncompressedLayoutUpdates === null) {
              $this->uncompressedLayoutUpdates = $this->layoutUpdates ?
                  json_decode(gzuncompress($this->layoutUpdates), true) : array();
          }
  
          return $this->uncompressedLayoutUpdates;
      }
docs: Returns layout updates processed during the request
  
  @return array