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�}:a� � @ s d Z ddlZdd� Zdd� ZdS )a `JOSE Base64`_ is defined as:
- URL-safe Base64
- padding stripped
.. _`JOSE Base64`:
https://tools.ietf.org/html/draft-ietf-jose-json-web-signature-37#appendix-C
.. Do NOT try to call this module "base64", as it will "shadow" the
standard library.
� Nc C s" t | t�std��tj| �jd�S )z�JOSE Base64 encode.
:param data: Data to be encoded.
:type data: bytes
:returns: JOSE Base64 string.
:rtype: bytes
:raises TypeError: if ``data`` is of incorrect type
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r4 td��Y qJX nt | t�sJtd��tj| ddt | �d �S )a^ JOSE Base64 decode.
:param data: Base64 string to be decoded. If it's unicode, then
only ASCII characters are allowed.
:type data: bytes or unicode
:returns: Decoded data.
:rtype: bytes
:raises TypeError: if input is of incorrect type
:raises ValueError: if input is unicode with non-ASCII characters
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