code: private function getFragmentCacheConfiguration()
      {
          $cache = $this->getCacheInstance();
          $fragmentCacheConfiguration = [
              'cache' => $cache,
              'duration' => $this->cacheDuration,
              'dependency' => $this->cacheDependency,
              'enabled' => $this->cacheEnabled,
          ];
  
          return $fragmentCacheConfiguration;
      }
docs: Returns a fragment cache widget configuration array.
  
  @return array a fragment cache widget configuration array.