def unsign(self, token):
if self.max_age is None:<EOL><INDENT>data = self.signer.unsign(token)<EOL><DEDENT>else:<EOL><INDENT>data = self.signer.unsign(token, max_age=self.max_age)<EOL><DEDENT>return signing.b64_decode(data.encode())<EOL>
Extract the data from a signed ``token``.