docs: def _make_header(self, token_type=None, signing_algorithm=None):
          """
          Make a JWT header
          """
          if not token_type:
              token_type = self.token_type
  
          if not signing_algorithm:
              signing_algorithm = self.signing_algorithm
  
          header = {'typ': token_type, 'alg': signing_algorithm}
          return header