def base64_len(s: bytes) -> int: ...
def header_encode(header, charset=..., keep_eols=..., maxlinelen=..., eol=...): ...
def encode(s, binary=..., maxlinelen=..., eol=...): ...
body_encode = encode
encodestring = encode
def decode(s, convert_eols=...): ...
body_decode = decode
decodestring = decode