pkg go/doc, func ToHTML //deprecated #51082
pkg go/doc, func ToText //deprecated #51082
pkg io/ioutil, func NopCloser //deprecated #42026
pkg io/ioutil, func ReadAll //deprecated #42026
pkg io/ioutil, func ReadDir //deprecated #42026
pkg io/ioutil, func ReadFile //deprecated #42026
pkg io/ioutil, func TempDir //deprecated #42026
pkg io/ioutil, func TempFile //deprecated #42026
pkg io/ioutil, func WriteFile //deprecated #42026

func (d *openDir) Read([]byte) (int, error) {
	return 0, &fs.PathError{Op: "read", Path: d.e.name, Err: errors.New("is a directory")}
}

func (d *openDir) ReadDir(count int) ([]fs.DirEntry, error) {
	n := len(d.files) - d.offset
	if count > 0 && n > count {
		n = count
	}
	if n == 0 {
		if count <= 0 {
			return nil, nil
		}
		return nil, io.EOF
	}

pkg io/fs, type PathError struct, Op string
pkg io/fs, type PathError struct, Path string
pkg io/fs, type ReadDirFS interface { Open, ReadDir }
pkg io/fs, type ReadDirFS interface, Open(string) (File, error)
pkg io/fs, type ReadDirFS interface, ReadDir(string) ([]DirEntry, error)
pkg io/fs, type ReadDirFile interface { Close, Read, ReadDir, Stat }
pkg io/fs, type ReadDirFile interface, Close() error

pkg os, func OpenFile(string, int, FileMode) (*File, error)
pkg os, func SameFile(FileInfo, FileInfo) bool
pkg os, func Stat(string) (FileInfo, error)
pkg os, method (*File) Chmod(FileMode) error
pkg os, method (*File) Readdir(int) ([]FileInfo, error)
pkg os, method (*File) Stat() (FileInfo, error)
pkg os, method (*PathError) Error() string
pkg os, method (*PathError) Timeout() bool
pkg os, method (*PathError) Unwrap() error

		}

		if f.weSleep() {
			scannerSleeper.Sleep(ctx, dataScannerSleepPerFolder)
		}

		var existingFolders, newFolders []cachedFolder
		var foundObjects bool
		err := readDirFn(pathJoin(f.root, folder.name), func(entName string, typ os.FileMode) error {
			// Parse
			entName = pathClean(pathJoin(folder.name, entName))
			if entName == "" || entName == folder.name {
				if f.dataUsageScannerDebug {

		t.Errorf("Opening %q with fs.FS API succeeded", "")
	}
	if _, err := r.Open("test.txt"); err != nil {
		t.Errorf("Error opening %q with fs.FS API: %v", "test.txt", err)
	}
	dirEntries, err := fs.ReadDir(r, ".")
	if err != nil {
		t.Fatalf("Error reading the root directory: %v", err)
	}
	if len(dirEntries) != 1 || dirEntries[0].Name() != "test.txt" {
		t.Errorf("Unexpected directory entries")

pkg net/http, type Dir string
pkg net/http, type File interface { Close, Read, Readdir, Seek, Stat }
pkg net/http, type File interface, Close() error
pkg net/http, type File interface, Read([]uint8) (int, error)
pkg net/http, type File interface, Readdir(int) ([]os.FileInfo, error)
pkg net/http, type File interface, Seek(int64, int) (int64, error)