docs: public static <T extends Serializable> FileSystemStateStorageHelper<T> createFileSystemStateStorage(
  			Configuration configuration,
  			String prefix) throws IOException {
  
  		String rootPath = configuration.getValue(HighAvailabilityOptions.HA_STORAGE_PATH);
  
  		if (rootPath == null || StringUtils.isBlank(rootPath)) {
  			throw new IllegalConfigurationException("Missing high-availability storage path for metadata." +
  					" Specify via configuration key '" + HighAvailabilityOptions.HA_STORAGE_PATH + "'.");
  		} else {
  			return new FileSystemStateStorageHelper<T>(rootPath, prefix);
  		}
  	}