code: def get_client_alg_keys(client):
      
      if client.jwt_alg == 'RS256':
          keys = []
          for rsakey in RSAKey.objects.all():
              keys.append(jwk_RSAKey(key=importKey(rsakey.key), kid=rsakey.kid))
          if not keys:
              raise Exception('You must add at least one RSA Key.')
      elif client.jwt_alg == 'HS256':
          keys = [SYMKey(key=client.client_secret, alg=client.jwt_alg)]
      else:
          raise Exception('Unsupported key algorithm.')
  
      return keys
docs: Takes a client and returns the set of keys associated with it.
      Returns a list of keys.