def get_id_token(self, access_token, nonce):
        """ Return an ID token for the given Access Token. """

        claims_string = self.request.POST.get('claims')
        claims_request = json.loads(claims_string) if claims_string else {}

        return oidc.id_token(access_token, nonce, claims_request)
Return an ID token for the given Access Token.