def to_jwt(self, algorithm=None, ttl=None):
if not self.secret_key:<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>headers = self.headers.copy()<EOL>if algorithm:<EOL><INDENT>headers['<STR_LIT>'] = algorithm<EOL><DEDENT>algorithm = algorithm or self.algorithm<EOL>payload = self.payload.copy()<EOL>if ttl:<EOL><INDENT>payload['<STR_LIT>'] = int(time.time()) + ttl<EOL><DEDENT>return jwt_lib.encode(payload, self.secret_key, algorithm=algorithm, headers=headers)<EOL>
Encode this JWT object into a JWT string
:param str algorithm: override the algorithm used to encode the JWT
:param int ttl: override the ttl configured in the constructor
:rtype: str The JWT string