How to use the hickle.hickle.ClosedFileError function in hickle

# Assume that we will have to close the file after dump or load
    close_flag = True

    # Were we handed a file object or just a file name string?
    if isinstance(f, (file, io.TextIOWrapper)):
        filename, mode = f.name, f.mode
        f.close()
        h5f = h5.File(filename, mode)
    elif isinstance(f, string_types):
        filename = f
        h5f = h5.File(filename, mode)
    elif isinstance(f, (H5FileWrapper, h5._hl.files.File)):
        try:
            filename = f.filename
        except ValueError:
            raise ClosedFileError
        h5f = f
        # Since this file was already open, do not close the file afterward
        close_flag = False
    else:
        print(f.__class__)
        raise FileError

    h5f.__class__ = H5FileWrapper
    h5f.track_times = track_times
    return(h5f, close_flag)