code: def encode(self, secret, algorithm='HS256'):
          
  
          return jwt.encode(self.claims, secret, algorithm)
docs: Encode the set of claims to the JWT (JSON Web Token) format
          according to the OpenID Connect specification:
  
          http://openid.net/specs/openid-connect-basic-1_0.html#IDToken
  
          Arguments:
              claims (dict): A dictionary with the OpenID Connect claims.
              secret (str): Secret used to encode the id_token.
              algorithm (str): Algorithm used for encoding.
                  Defaults to HS256.
  
          Returns encoded JWT token string.