property
vfs.VirtualFileSystem.watch
watch: {(filename: PathLike, options?: null | BufferEncoding | WatchOptionsWithStringEncoding, listener?: WatchListener<string>) => FSWatcher; (filename: PathLike, options: 'buffer' | WatchOptionsWithBufferEncoding, listener: WatchListener<NonSharedBuffer>) => FSWatcher; (filename: PathLike, options: null | BufferEncoding | 'buffer' | WatchOptions, listener: WatchListener<string | NonSharedBuffer>) => FSWatcher; (filename: PathLike, listener: WatchListener<string>) => FSWatcher}