How to use the delocate.tmpdirs.InTemporaryDirectory function in delocate

def fuse_wheels(to_wheel, from_wheel, out_wheel):
    """ Fuse `from_wheel` into `to_wheel`, write to `out_wheel`

    Parameters
    ---------
    to_wheel : str
        filename of wheel to fuse into
    from_wheel : str
        filename of wheel to fuse from
    out_wheel : str
        filename of new wheel from fusion of `to_wheel` and `from_wheel`
    """
    to_wheel, from_wheel, out_wheel = [
        abspath(w) for w in (to_wheel, from_wheel, out_wheel)]
    with InTemporaryDirectory():
        zip2dir(to_wheel, 'to_wheel')
        zip2dir(from_wheel, 'from_wheel')
        fuse_trees('to_wheel', 'from_wheel')
        rewrite_record('to_wheel')
        dir2zip('to_wheel', out_wheel)

relative_path = relpath(path, bdist_dir)
            if skip(relative_path):
                hash = ''
                size = ''
            else:
                with open(path, 'rb') as f:
                    data = f.read()
                digest = hashlib.sha256(data).digest()
                hash = 'sha256=' + native(urlsafe_b64encode(digest))
                size = len(data)
            path_for_record = relpath(
                path, bdist_dir).replace(psep, '/')
            writer.writerow((path_for_record, hash, size))


class InWheel(InTemporaryDirectory):
    """ Context manager for doing things inside wheels

    On entering, you'll find yourself in the root tree of the wheel.  If you've
    asked for an output wheel, then on exit we'll rewrite the wheel record and
    pack stuff up for you.
    """
    def __init__(self, in_wheel, out_wheel=None, ret_self=False):
        """ Initialize in-wheel context manager

        Parameters
        ----------
        in_wheel : str
            filename of wheel to unpack and work inside
        out_wheel : None or str:
            filename of wheel to write after exiting.  If None, don't write and
            discard

def __enter__(self):
        self._pwd = os.getcwd()
        os.chdir(self.name)
        return super(InTemporaryDirectory, self).__enter__()