// Error if offset is size.
		{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte), 0, 0, InvalidRange{}},
	}

	// Test them.
	for _, testCase := range testCases {
		index, offset, err := fi.ObjectToPartOffset(context.Background(), testCase.offset)
		if err != testCase.expectedErr {
			t.Fatalf("%+v: expected = %s, got: %s", testCase, testCase.expectedErr, err)
		}
		if index != testCase.expectedIndex {

// Case 2: bytes=1-10 (absolute start and end offsets) -> RangeSpec{false, 1, 10}
// Case 3: bytes=10- (absolute start offset with end offset unspecified) -> RangeSpec{false, 10, -1}
// Case 4: bytes=-30 (suffix length specification) -> RangeSpec{true, -30, -1}
type HTTPRangeSpec struct {
	// Does the range spec refer to a suffix of the object?
	IsSuffixLength bool

	// Start and end offset specified in range spec
	Start, End int64
}

	if offset < 0 || length < 0 {
		return -1, errInvalidArgument
	}
	if offset+length > totalLength {
		return -1, errInvalidArgument
	}

	if length == 0 {
		return 0, nil
	}

	reader := newParallelReader(readers, e, offset, totalLength)
	if len(prefer) == len(readers) {

	return
}

// Offset specify the number of records to skip before starting to return the records
//
// Offset conditions can be cancelled by using `Offset(-1)`.
//
//	// select the third user
//	db.Offset(2).First(&user)
//	// select the first user by cancelling an earlier chained offset
//	db.Offset(5).Offset(-1).First(&user)
func (db *DB) Offset(offset int) (tx *DB) {
	tx = db.getInstance()

}

// ObjectToPartOffset - translate offset of an object to offset of its individual part.
func (fi FileInfo) ObjectToPartOffset(ctx context.Context, offset int64) (partIndex int, partOffset int64, err error) {
	if offset == 0 {
		// Special case - if offset is 0, then partIndex and partOffset are always 0.
		return 0, 0, nil
	}
	partOffset = offset
	// Seek until object offset maps to a particular part offset.

	nextOffset int64
	m          sync.Mutex
}

func (w *writerAt) WriteAt(b []byte, offset int64) (n int, err error) {
	w.m.Lock()
	defer w.m.Unlock()

	if w.nextOffset == offset {
		n, err = w.w.Write(b)
		w.nextOffset += int64(n)
	} else {
		w.buffer[offset] = make([]byte, len(b))
		copy(w.buffer[offset], b)
		n = len(b)
	}

again:
	nextOut, ok := w.buffer[w.nextOffset]
	if ok {

    private final transient @Nullable Object[] alternatingKeysAndValues;
    private final transient int offset;
    private final transient int size;

    KeysOrValuesAsList(@Nullable Object[] alternatingKeysAndValues, int offset, int size) {
      this.alternatingKeysAndValues = alternatingKeysAndValues;
      this.offset = offset;
      this.size = size;
    }

    @Override
    public Object get(int index) {

    return new SubList(fromIndex, toIndex - fromIndex);
  }

  class SubList extends ImmutableList<E> {
    final transient int offset;
    final transient int length;

    SubList(int offset, int length) {
      this.offset = offset;
      this.length = length;
    }

    @Override
    public int size() {
      return length;
    }

    @Override
    @CheckForNull

	{file: "myobject", offset: 100, length: 0, algorithm: SHA256, expError: nil},                // 3
	{file: "myobject", offset: 1, length: 120, algorithm: SHA256, expError: errFileCorrupt},     // 4
	{file: "myobject", offset: 3, length: 1100, algorithm: SHA256, expError: nil},               // 5
	{file: "myobject", offset: 2, length: 100, algorithm: SHA256, expError: errFileCorrupt},     // 6

		*GetUser("find_in_batches_with_offset_limit", Config{}),
		*GetUser("find_in_batches_with_offset_limit", Config{}),
		*GetUser("find_in_batches_with_offset_limit", Config{}),
		*GetUser("find_in_batches_with_offset_limit", Config{}),
		*GetUser("find_in_batches_with_offset_limit", Config{}),
		*GetUser("find_in_batches_with_offset_limit", Config{}),
		*GetUser("find_in_batches_with_offset_limit", Config{}),