U
    kufå  ã                   @  s   d Z ddlmZ ddd„ZdS )z"Convert notebook to the v1 format.é    )ÚannotationsNc                 C  s   d}t |ƒ‚dS )zUpgrade a notebook.z$Cannot convert to v1 notebook formatN)Ú
ValueError)ÚnbZorig_versionÚmsg© r   ú7/tmp/pip-unpacked-wheel-zj9qk9v2/nbformat/v1/convert.pyÚupgrade   s    r   )N)Ú__doc__Ú
__future__r   r   r   r   r   r   Ú<module>   s   