How to use the backfill-logger.logger.error function in backfill-logger

initializeWatcher(
        packageRoot,
        internalCacheFolder,
        logFolder,
        outputFolder,
        hashGlobs
      );
    }

    await backfill(config, cacheStorage, buildCommand, hasher);

    if (argv["audit"]) {
      await closeWatcher();
    }
  } catch (err) {
    logger.error(err);
    process.exit(1);
  }
}

.catch(err => {
          if (process.env.NODE_ENV !== "test") {
            logger.error(`Failed while running: "${parsedBuildCommand}"`);
          }
          throw err;
        })
    );

const put = async (hash: string) => {
    try {
      await cacheStorage.put(hash, outputFolder);
    } catch (err) {
      logger.error(
        `Failed to persist the cache with the following error:\n\n${err}`
      );
    }
  };