:param token:
        :param token_handler: A token handler instance, for example of type
                              oauthlib.oauth2.BearerToken.
        :param request: OAuthlib request.
        :type request: oauthlib.common.Request

def add_token(self, token, token_handler, request):
        """
        :param token:
        :param token_handler: A token handler instance, for example of type
                              oauthlib.oauth2.BearerToken.
        :param request: OAuthlib request.
        :type request: oauthlib.common.Request
        """
        # Only add a hybrid access token on auth step if asked for
        if not request.response_type in ["token", "code token", "id_token token", "code id_token token"]:
            return token

        token.update(token_handler.create_token(request, refresh_token=False))
        return token