code: @CheckReturnValue
    public static CloudStorageFileSystem forBucket(String bucket, CloudStorageConfiguration config) {
      checkArgument(
          !bucket.startsWith(URI_SCHEME + ":"), "Bucket name must not have schema: %s", bucket);
      checkNotNull(config);
      return new CloudStorageFileSystem(
          new CloudStorageFileSystemProvider(config.userProject()), bucket, config);
    }
docs: Creates new file system instance for {@code bucket}, with customizable settings.
  
  @see #forBucket(String)