How to use the jovian._version.__version__ function in jovian

@click.version_option(version=__version__, prog_name="Jovian")
@click.pass_context
def main(ctx, log_level="info"):
    """Keep track of your Jupyter notebooks using Jovian.

    Use within your Jupyter notebooks:

        [1] import jovian

        [2] jovian.commit()

    Or try out a demo with:

        $ jovian clone aakashns/jovian-tutorial
    """

    pass

def _h(fresh):
    """Create a header to provide library metadata"""
    api_key, _ = read_api_key_opt()

    headers = {"x-jovian-source": "library",
               "x-jovian-library-version": __version__,
               "x-jovian-command": "clone" if fresh else "pull",
               "x-jovian-guest": get_guest_key(),
               "x-jovian-org": read_org_id()}

    if api_key is not None:
        headers["Authorization"] = "Bearer " + api_key

    return headers

def version():
    return __version__

def _h():
    """Create a header to provide library metadata"""
    return {"Authorization": "Bearer " + get_api_key(),
            "x-jovian-source": "library",
            "x-jovian-library-version": __version__,
            "x-jovian-command": "add-slack",
            "x-jovian-guest": get_guest_key(),
            "x-jovian-org": read_org_id()}

def _h():
    """Create authorization header with API key"""
    return {"Authorization": "Bearer " + get_api_key(),
            "x-jovian-source": "library",
            "x-jovian-library-version": __version__,
            "x-jovian-guest": get_guest_key(),
            "x-jovian-org": read_org_id()}