property
vfs.VirtualFileSystem.watchFile
watchFile: {(filename: PathLike, options: undefined | WatchFileOptions & { bigint: false }, listener: StatsListener) => StatWatcher; (filename: PathLike, options: undefined | WatchFileOptions & { bigint: true }, listener: BigIntStatsListener) => StatWatcher; (filename: PathLike, listener: StatsListener) => StatWatcher}