property
vfs.VirtualFileSystem.readFileSync
readFileSync: {(path: PathOrFileDescriptor, options: ReadFileSyncOptionsWithBuffer<T>) => BufferView<T>; (path: PathOrFileDescriptor, options?: null | ReadFileSyncOptionsWithBufferEncoding) => NonSharedBuffer; (path: PathOrFileDescriptor, options: BufferEncoding | ReadFileSyncOptionsWithStringEncoding) => string; (path: PathOrFileDescriptor, options: ReadFileSyncOptions) => string | NonSharedBuffer}